{{-- Part B §3 — Physical / component progress (REVENUE). Independent Single / Unit-wise mode. --}}
@php
    $reportPayload = is_array($report ?? null) ? $report : [];
    $unitMode = old(
        'report.part_b.scheme_progress_revenue.reporting_mode',
        report_section_reporting_mode($reportPayload, 'part_b.scheme_progress_revenue.reporting_mode')
    );
    if (! in_array((string) $unitMode, ['single', 'unit_wise'], true)) {
        $unitMode = 'single';
    }
    $defaultRow = [
        'major_unit_component' => '',
        'measuring_unit' => '',
        'qty_pc_i' => '',
        'physical_progress' => '',
        'expenditure' => '',
        'total_cost' => '',
        'pp_pct' => '',
        'fp_pct' => '',
        'variance_pp_fp' => '',
        'remarks' => '',
    ];
    $normalizeRevRow = static function ($row) use ($defaultRow): array {
        if (! is_array($row)) {
            return $defaultRow;
        }
        $out = [];
        foreach ($defaultRow as $key => $default) {
            $val = $row[$key] ?? $default;
            $out[$key] = $val === null ? '' : (is_scalar($val) ? (string) $val : $default);
        }
        if ($out['measuring_unit'] === '' && $out['qty_pc_i'] === '') {
            $legacy = trim((string) ($row['measuring_unit_qty_pci'] ?? ''));
            if ($legacy !== '') {
                $out['qty_pc_i'] = $legacy;
            }
        }

        return $out;
    };
    $rows = old('report.part_b.scheme_progress_revenue.rows');
    if (! is_array($rows) || count($rows) === 0) {
        $rows = data_get($reportPayload, 'part_b.scheme_progress_revenue.rows', []);
    }
    if (! is_array($rows) || count($rows) === 0) {
        $rows = [$defaultRow];
    }
    $rows = array_map($normalizeRevRow, array_values($rows));
    $units = old('report.part_b.scheme_progress_revenue.units');
    if (! is_array($units) || count($units) === 0) {
        $units = data_get($reportPayload, 'part_b.scheme_progress_revenue.units', []);
    }
    if (! is_array($units) || count($units) === 0) {
        $units = [['unit_name' => '', 'rows' => [$defaultRow]]];
    }
    foreach ($units as $ui => $unit) {
        if (! is_array($unit)) {
            $units[$ui] = ['unit_name' => '', 'rows' => [$defaultRow]];
            continue;
        }
        $unitRows = $unit['rows'] ?? [];
        if (! is_array($unitRows) || count($unitRows) === 0) {
            $unitRows = [$defaultRow];
        }
        $units[$ui]['unit_name'] = (string) ($unit['unit_name'] ?? '');
        $units[$ui]['rows'] = array_map($normalizeRevRow, array_values($unitRows));
        $unitTotals = is_array($unit['totals'] ?? null) ? $unit['totals'] : [];
        $units[$ui]['totals'] = [
            'pp_pct' => (string) ($unitTotals['pp_pct'] ?? ''),
            'fp_pct' => (string) ($unitTotals['fp_pct'] ?? ''),
        ];
    }
    $revTotalsRaw = old('report.part_b.scheme_progress_revenue.totals');
    if (! is_array($revTotalsRaw)) {
        $revTotalsRaw = data_get($reportPayload, 'part_b.scheme_progress_revenue.totals', []);
    }
    if (! is_array($revTotalsRaw)) {
        $revTotalsRaw = [];
    }
    $revTotalPp = \App\Services\ReportPreviewPresenter::schemeProgressPctInputValue((string) ($revTotalsRaw['pp_pct'] ?? ''));
    $revTotalFp = \App\Services\ReportPreviewPresenter::schemeProgressPctInputValue((string) ($revTotalsRaw['fp_pct'] ?? ''));
@endphp
<div class="report-pa-field-table report-b2b-sp report-b2-sp--modern" id="report-b2b-root">
    @include('reports.partials.b2b-scheme-progress-revenue-controls', ['unitMode' => $unitMode])

    <div class="report-b2-sheet-card" id="report-b2b-single-wrap" style="{{ $unitMode === 'unit_wise' ? 'display:none' : '' }}">
        @include('reports.partials.b2-scheme-progress-sheet-head')
        <div class="report-b2-sheet-card__body">
        <div class="table-responsive report-b2-table-scroll">
            <table class="table report-b2-data-table report-b2-data-table--modern report-b2-data-table--revenue mb-0">
                <thead>
                    <tr class="report-b2-head-row report-b2-head-row--flat">
                        <th class="report-b2-th-serial">S#</th>
                        <th class="report-b2-th-major">{{ __('Major Unit/Components') }}</th>
                        <th class="report-b2-th-num">{{ __('Measuring Unit') }}</th>
                        <th class="report-b2-th-num">{{ __('Quantity as per PC-I') }}</th>
                        <th class="report-b2-th-num">{{ __('Physical Progress') }}</th>
                        <th class="report-b2-th-num">{{ __('Expenditure') }}</th>
                        <th class="report-b2-th-num">{{ __('Total Cost') }}</th>
                        <th class="report-b2-th-num report-b2-th-pp">PP (%)</th>
                        <th class="report-b2-th-num report-b2-th-fp">FP (%)</th>
                        <th class="report-b2-th-num">{{ __('Variance Between PP & FP') }}</th>
                        <th class="report-b2-th-num">{{ __('Remarks') }}</th>
                        <th class="report-b2-th-actions" aria-label="{{ __('Row actions') }}"></th>
                    </tr>
                </thead>
                <tbody id="report-b2b-tbody">
                    @foreach ($rows as $rIdx => $row)
                        @php
                            $dot = 'report.part_b.scheme_progress_revenue.rows.'.$rIdx.'.';
                            $major = old($dot.'major_unit_component', $row['major_unit_component'] ?? '');
                            $measUnit = old($dot.'measuring_unit', $row['measuring_unit'] ?? '');
                            $qtyPcI = old($dot.'qty_pc_i', $row['qty_pc_i'] ?? '');
                            $ppv = old($dot.'physical_progress', $row['physical_progress'] ?? '');
                            $exp = old($dot.'expenditure', $row['expenditure'] ?? '');
                            $tc = old($dot.'total_cost', $row['total_cost'] ?? '');
                            $pp = \App\Services\ReportPreviewPresenter::schemeProgressPctInputValue(old($dot.'pp_pct', $row['pp_pct'] ?? ''));
                            $fp = \App\Services\ReportPreviewPresenter::schemeProgressPctInputValue(old($dot.'fp_pct', $row['fp_pct'] ?? ''));
                            $variance = old($dot.'variance_pp_fp', $row['variance_pp_fp'] ?? '');
                            $rem = old($dot.'remarks', $row['remarks'] ?? '');
                        @endphp
                        <tr class="report-b2-data-row report-b2b-single-data-row" data-row-index="{{ $rIdx }}">
                            <td class="report-b2-td report-b2-td-serial"><span class="report-b2-serial-num">{{ $rIdx + 1 }}</span></td>
                            <td class="report-b2-td">
                                <input type="text" name="report[part_b][scheme_progress_revenue][rows][{{ $rIdx }}][major_unit_component]" value="{{ $major }}" class="form-control form-control-sm report-b1-input @error($dot.'major_unit_component') is-invalid @enderror" autocomplete="off">
                                @error($dot.'major_unit_component')<span class="invalid-feedback d-block">{{ $message }}</span>@enderror
                            </td>
                            <td class="report-b2-td">
                                <input type="text" name="report[part_b][scheme_progress_revenue][rows][{{ $rIdx }}][measuring_unit]" value="{{ $measUnit }}" class="form-control form-control-sm report-b1-input @error($dot.'measuring_unit') is-invalid @enderror" autocomplete="off">
                                @error($dot.'measuring_unit')<span class="invalid-feedback d-block">{{ $message }}</span>@enderror
                            </td>
                            <td class="report-b2-td">
                                <input type="text" name="report[part_b][scheme_progress_revenue][rows][{{ $rIdx }}][qty_pc_i]" value="{{ $qtyPcI }}" class="form-control form-control-sm report-b1-input @error($dot.'qty_pc_i') is-invalid @enderror" autocomplete="off">
                                @error($dot.'qty_pc_i')<span class="invalid-feedback d-block">{{ $message }}</span>@enderror
                            </td>
                            <td class="report-b2-td">
                                <input type="text" name="report[part_b][scheme_progress_revenue][rows][{{ $rIdx }}][physical_progress]" value="{{ $ppv }}" class="form-control form-control-sm report-b1-input @error($dot.'physical_progress') is-invalid @enderror" autocomplete="off">
                                @error($dot.'physical_progress')<span class="invalid-feedback d-block">{{ $message }}</span>@enderror
                            </td>
                            <td class="report-b2-td">
                                <input type="number" step="any" name="report[part_b][scheme_progress_revenue][rows][{{ $rIdx }}][expenditure]" value="{{ $exp }}" class="form-control form-control-sm report-b1-input report-b2b-js-exp @error($dot.'expenditure') is-invalid @enderror" inputmode="decimal" autocomplete="off">
                                @error($dot.'expenditure')<span class="invalid-feedback d-block">{{ $message }}</span>@enderror
                            </td>
                            <td class="report-b2-td">
                                <input type="number" step="any" name="report[part_b][scheme_progress_revenue][rows][{{ $rIdx }}][total_cost]" value="{{ $tc }}" class="form-control form-control-sm report-b1-input report-b2b-js-tcost @error($dot.'total_cost') is-invalid @enderror" inputmode="decimal" autocomplete="off">
                                @error($dot.'total_cost')<span class="invalid-feedback d-block">{{ $message }}</span>@enderror
                            </td>
                            <td class="report-b2-td">
                                <input type="number" step="any" name="report[part_b][scheme_progress_revenue][rows][{{ $rIdx }}][pp_pct]" value="{{ $pp }}" class="form-control form-control-sm report-b1-input report-b2-modern-input report-b2b-js-pp report-b2-js-num report-b2-input-pp @error($dot.'pp_pct') is-invalid @enderror" inputmode="decimal" autocomplete="off">
                                @error($dot.'pp_pct')<span class="invalid-feedback d-block">{{ $message }}</span>@enderror
                            </td>
                            <td class="report-b2-td">
                                <input type="number" step="any" name="report[part_b][scheme_progress_revenue][rows][{{ $rIdx }}][fp_pct]" value="{{ $fp }}" class="form-control form-control-sm report-b1-input report-b2-modern-input report-b2b-js-fp report-b2-js-num report-b2-input-fp @error($dot.'fp_pct') is-invalid @enderror" inputmode="decimal" autocomplete="off">
                                @error($dot.'fp_pct')<span class="invalid-feedback d-block">{{ $message }}</span>@enderror
                            </td>
                            <td class="report-b2-td">
                                <input type="number" step="any" name="report[part_b][scheme_progress_revenue][rows][{{ $rIdx }}][variance_pp_fp]" value="{{ $variance }}" readonly class="form-control form-control-sm report-b1-input report-b2b-variance-out @error($dot.'variance_pp_fp') is-invalid @enderror" tabindex="-1" aria-readonly="true">
                                @error($dot.'variance_pp_fp')<span class="invalid-feedback d-block">{{ $message }}</span>@enderror
                            </td>
                            <td class="report-b2-td">
                                <input type="text" name="report[part_b][scheme_progress_revenue][rows][{{ $rIdx }}][remarks]" value="{{ $rem }}" class="form-control form-control-sm report-b1-input @error($dot.'remarks') is-invalid @enderror" autocomplete="off">
                                @error($dot.'remarks')<span class="invalid-feedback d-block">{{ $message }}</span>@enderror
                            </td>
                            <td class="report-b2-td report-b2-td-actions text-center align-middle">
                                <button type="button" class="btn btn-sm report-b2-remove-btn report-b2b-remove-single" title="{{ __('Remove row') }}" aria-label="{{ __('Remove row') }}" @if (count($rows) <= 1) style="visibility:hidden" @endif>
                                    <i class="fas fa-times"></i>
                                </button>
                            </td>
                        </tr>
                    @endforeach
                </tbody>
                <tfoot>
                    <tr class="report-b2-total-row report-b2-total-row--modern">
                        <td class="report-b2-td report-b2-total-label" colspan="2"><strong>{{ __('TOTAL') }}</strong></td>
                        <td class="report-b2-td"><span class="report-b2-total-val" id="report-b2b-total-meas-unit">—</span></td>
                        <td class="report-b2-td"><span class="report-b2-total-val" id="report-b2b-total-qty-pci">—</span></td>
                        <td class="report-b2-td"><span class="report-b2-total-val" id="report-b2b-total-phys">—</span></td>
                        <td class="report-b2-td"><span class="report-b2-total-val" id="report-b2b-total-exp">—</span></td>
                        <td class="report-b2-td"><span class="report-b2-total-val" id="report-b2b-total-tc">—</span></td>
                        <td class="report-b2-td report-b2-total-pp">
                            <input type="number" step="any" name="report[part_b][scheme_progress_revenue][totals][pp_pct]" value="{{ $revTotalPp }}" id="report-b2b-total-pp" class="form-control form-control-sm report-b1-input report-b2-js-num report-b2b-total-pp-input" inputmode="decimal" autocomplete="off" title="{{ __('Enter total PP% manually.') }}">
                        </td>
                        <td class="report-b2-td report-b2-total-fp">
                            <input type="number" step="any" name="report[part_b][scheme_progress_revenue][totals][fp_pct]" value="{{ $revTotalFp }}" id="report-b2b-total-fp" class="form-control form-control-sm report-b1-input report-b2-js-num report-b2b-total-fp-input" inputmode="decimal" autocomplete="off" title="{{ __('Enter total FP% manually.') }}">
                        </td>
                        <td class="report-b2-td"><span class="report-b2-total-val" id="report-b2b-total-var">—</span></td>
                        <td class="report-b2-td"></td>
                        <td class="report-b2-td"></td>
                    </tr>
                </tfoot>
            </table>
        </div>
        </div>
        <div class="report-b2-sheet-card__footer report-b2-sheet-card__footer--single">
            <button type="button" class="report-b2-add-row-btn" id="report-b2b-add-row">
                <i class="fas fa-plus" aria-hidden="true"></i>
                {{ __('Add New Row') }}
            </button>
        </div>
    </div>

    <div class="report-b2-sheet-card report-b2-units-sheet" id="report-b2b-units-wrap" style="{{ $unitMode === 'unit_wise' ? '' : 'display:none' }}">
        @include('reports.partials.b2-scheme-progress-sheet-head')
        <div class="report-b2-sheet-card__body">
        <div id="report-b2b-units-container">
            @foreach ($units as $uIdx => $unit)
                @php
                    $uRows = is_array($unit['rows'] ?? null) && count($unit['rows']) > 0 ? $unit['rows'] : [$defaultRow];
                    $uName = old('report.part_b.scheme_progress_revenue.units.'.$uIdx.'.unit_name', $unit['unit_name'] ?? '');
                    $uTotPp = \App\Services\ReportPreviewPresenter::schemeProgressPctInputValue(old('report.part_b.scheme_progress_revenue.units.'.$uIdx.'.totals.pp_pct', data_get($unit, 'totals.pp_pct', '')));
                    $uTotFp = \App\Services\ReportPreviewPresenter::schemeProgressPctInputValue(old('report.part_b.scheme_progress_revenue.units.'.$uIdx.'.totals.fp_pct', data_get($unit, 'totals.fp_pct', '')));
                @endphp
                <div class="report-b2b-unit-block report-b2-unit-block report-b2-unit-shell mb-3" data-b2b-unit-block>
                    <div class="report-b2-unit-shell__head">
                        <div class="report-b2-unit-shell__field">
                            <label class="report-b2-control-label mb-2 d-block">{{ __('Unit name') }}</label>
                            <input type="text" name="report[part_b][scheme_progress_revenue][units][{{ $uIdx }}][unit_name]" value="{{ $uName }}" class="form-control form-control-sm report-b1-input report-b2-modern-input report-b2b-unit-name-input" placeholder="{{ __('e.g. Package A, Civil works') }}" autocomplete="off">
                        </div>
                        <div class="report-b2-unit-shell__actions">
                            <button type="button" class="report-b2-add-row-btn report-b2-add-row-btn--sm report-b2b-add-unit">+ {{ __('Add unit') }}</button>
                            <button type="button" class="report-b2-remove-unit-btn report-b2b-remove-unit" title="{{ __('Remove unit') }}">{{ __('Remove unit') }}</button>
                        </div>
                    </div>
                    <div class="table-responsive report-b2-table-scroll">
                        <table class="table report-b2-data-table report-b2-data-table--modern report-b2-data-table--revenue mb-0">
                            <thead>
                                <tr class="report-b2-head-row report-b2-head-row--flat">
                                    <th class="report-b2-th-serial">S#</th>
                                    <th class="report-b2-th-major">{{ __('Major unit/components') }}</th>
                                    <th class="report-b2-th-num">{{ __('Measuring unit') }}</th>
                                    <th class="report-b2-th-num">{{ __('Qty (PC-I)') }}</th>
                                    <th class="report-b2-th-num">{{ __('Phys. progress') }}</th>
                                    <th class="report-b2-th-num">{{ __('Expenditure') }}</th>
                                    <th class="report-b2-th-num">{{ __('Total cost') }}</th>
                                    <th class="report-b2-th-num report-b2-th-pp">PP (%)</th>
                                    <th class="report-b2-th-num report-b2-th-fp">FP (%)</th>
                                    <th class="report-b2-th-num">{{ __('Variance') }}</th>
                                    <th class="report-b2-th-num">{{ __('Remarks') }}</th>
                                    <th class="report-b2-th-actions" aria-label="{{ __('Row actions') }}"></th>
                                </tr>
                            </thead>
                            <tbody class="report-b2b-unit-tbody">
                                @foreach ($uRows as $rIdx => $row)
                                    @php
                                        $dot = 'report.part_b.scheme_progress_revenue.units.'.$uIdx.'.rows.'.$rIdx.'.';
                                        $major = old($dot.'major_unit_component', $row['major_unit_component'] ?? '');
                                        $measUnit = old($dot.'measuring_unit', $row['measuring_unit'] ?? '');
                                        $qtyPcI = old($dot.'qty_pc_i', $row['qty_pc_i'] ?? '');
                                        $ppv = old($dot.'physical_progress', $row['physical_progress'] ?? '');
                                        $exp = old($dot.'expenditure', $row['expenditure'] ?? '');
                                        $tc = old($dot.'total_cost', $row['total_cost'] ?? '');
                                        $pp = \App\Services\ReportPreviewPresenter::schemeProgressPctInputValue(old($dot.'pp_pct', $row['pp_pct'] ?? ''));
                                        $fp = \App\Services\ReportPreviewPresenter::schemeProgressPctInputValue(old($dot.'fp_pct', $row['fp_pct'] ?? ''));
                                        $variance = old($dot.'variance_pp_fp', $row['variance_pp_fp'] ?? '');
                                        $rem = old($dot.'remarks', $row['remarks'] ?? '');
                                    @endphp
                                    <tr class="report-b2-data-row report-b2b-unit-data-row" data-row-index="{{ $rIdx }}">
                                        <td class="report-b2-td report-b2-td-serial"><span class="report-b2-serial-num">{{ $rIdx + 1 }}</span></td>
                                        <td class="report-b2-td">
                                            <input type="text" name="report[part_b][scheme_progress_revenue][units][{{ $uIdx }}][rows][{{ $rIdx }}][major_unit_component]" value="{{ $major }}" class="form-control form-control-sm report-b1-input @error($dot.'major_unit_component') is-invalid @enderror" autocomplete="off">
                                            @error($dot.'major_unit_component')<span class="invalid-feedback d-block">{{ $message }}</span>@enderror
                                        </td>
                                        <td class="report-b2-td">
                                            <input type="text" name="report[part_b][scheme_progress_revenue][units][{{ $uIdx }}][rows][{{ $rIdx }}][measuring_unit]" value="{{ $measUnit }}" class="form-control form-control-sm report-b1-input @error($dot.'measuring_unit') is-invalid @enderror" autocomplete="off">
                                            @error($dot.'measuring_unit')<span class="invalid-feedback d-block">{{ $message }}</span>@enderror
                                        </td>
                                        <td class="report-b2-td">
                                            <input type="text" name="report[part_b][scheme_progress_revenue][units][{{ $uIdx }}][rows][{{ $rIdx }}][qty_pc_i]" value="{{ $qtyPcI }}" class="form-control form-control-sm report-b1-input @error($dot.'qty_pc_i') is-invalid @enderror" autocomplete="off">
                                            @error($dot.'qty_pc_i')<span class="invalid-feedback d-block">{{ $message }}</span>@enderror
                                        </td>
                                        <td class="report-b2-td">
                                            <input type="text" name="report[part_b][scheme_progress_revenue][units][{{ $uIdx }}][rows][{{ $rIdx }}][physical_progress]" value="{{ $ppv }}" class="form-control form-control-sm report-b1-input @error($dot.'physical_progress') is-invalid @enderror" autocomplete="off">
                                            @error($dot.'physical_progress')<span class="invalid-feedback d-block">{{ $message }}</span>@enderror
                                        </td>
                                        <td class="report-b2-td">
                                            <input type="number" step="any" name="report[part_b][scheme_progress_revenue][units][{{ $uIdx }}][rows][{{ $rIdx }}][expenditure]" value="{{ $exp }}" class="form-control form-control-sm report-b1-input report-b2b-js-exp @error($dot.'expenditure') is-invalid @enderror" inputmode="decimal" autocomplete="off">
                                            @error($dot.'expenditure')<span class="invalid-feedback d-block">{{ $message }}</span>@enderror
                                        </td>
                                        <td class="report-b2-td">
                                            <input type="number" step="any" name="report[part_b][scheme_progress_revenue][units][{{ $uIdx }}][rows][{{ $rIdx }}][total_cost]" value="{{ $tc }}" class="form-control form-control-sm report-b1-input report-b2b-js-tcost @error($dot.'total_cost') is-invalid @enderror" inputmode="decimal" autocomplete="off">
                                            @error($dot.'total_cost')<span class="invalid-feedback d-block">{{ $message }}</span>@enderror
                                        </td>
                                        <td class="report-b2-td">
                                            <input type="number" step="any" name="report[part_b][scheme_progress_revenue][units][{{ $uIdx }}][rows][{{ $rIdx }}][pp_pct]" value="{{ $pp }}" class="form-control form-control-sm report-b1-input report-b2-modern-input report-b2b-js-pp report-b2-js-num report-b2-input-pp @error($dot.'pp_pct') is-invalid @enderror" inputmode="decimal" autocomplete="off">
                                            @error($dot.'pp_pct')<span class="invalid-feedback d-block">{{ $message }}</span>@enderror
                                        </td>
                                        <td class="report-b2-td">
                                            <input type="number" step="any" name="report[part_b][scheme_progress_revenue][units][{{ $uIdx }}][rows][{{ $rIdx }}][fp_pct]" value="{{ $fp }}" class="form-control form-control-sm report-b1-input report-b2-modern-input report-b2b-js-fp report-b2-js-num report-b2-input-fp @error($dot.'fp_pct') is-invalid @enderror" inputmode="decimal" autocomplete="off">
                                            @error($dot.'fp_pct')<span class="invalid-feedback d-block">{{ $message }}</span>@enderror
                                        </td>
                                        <td class="report-b2-td">
                                            <input type="number" step="any" name="report[part_b][scheme_progress_revenue][units][{{ $uIdx }}][rows][{{ $rIdx }}][variance_pp_fp]" value="{{ $variance }}" readonly class="form-control form-control-sm report-b1-input report-b2b-variance-out @error($dot.'variance_pp_fp') is-invalid @enderror" tabindex="-1" aria-readonly="true">
                                            @error($dot.'variance_pp_fp')<span class="invalid-feedback d-block">{{ $message }}</span>@enderror
                                        </td>
                                        <td class="report-b2-td">
                                            <input type="text" name="report[part_b][scheme_progress_revenue][units][{{ $uIdx }}][rows][{{ $rIdx }}][remarks]" value="{{ $rem }}" class="form-control form-control-sm report-b1-input @error($dot.'remarks') is-invalid @enderror" autocomplete="off">
                                            @error($dot.'remarks')<span class="invalid-feedback d-block">{{ $message }}</span>@enderror
                                        </td>
                                        <td class="report-b2-td report-b2-td-actions text-center align-middle">
                                            <button type="button" class="btn btn-sm report-b2-remove-btn report-b2b-remove-unit-row" title="{{ __('Remove row') }}" aria-label="{{ __('Remove row') }}" @if (count($uRows) <= 1) style="visibility:hidden" @endif>
                                                <i class="fas fa-times"></i>
                                            </button>
                                        </td>
                                    </tr>
                                @endforeach
                            </tbody>
                            <tfoot>
                                <tr class="report-b2-total-row report-b2-total-row--modern">
                                    <td class="report-b2-td report-b2-total-label" colspan="2"><strong>{{ __('TOTAL (THIS UNIT)') }}</strong></td>
                                    <td class="report-b2-td"><span class="report-b2-total-val report-b2b-unit-total-meas-unit">—</span></td>
                                    <td class="report-b2-td"><span class="report-b2-total-val report-b2b-unit-total-qty-pci">—</span></td>
                                    <td class="report-b2-td"><span class="report-b2-total-val report-b2b-unit-total-phys">—</span></td>
                                    <td class="report-b2-td"><span class="report-b2-total-val report-b2b-unit-total-exp">—</span></td>
                                    <td class="report-b2-td"><span class="report-b2-total-val report-b2b-unit-total-tc">—</span></td>
                                    <td class="report-b2-td report-b2-total-pp">
                                        <input type="number" step="any" name="report[part_b][scheme_progress_revenue][units][{{ $uIdx }}][totals][pp_pct]" value="{{ $uTotPp }}" class="form-control form-control-sm report-b1-input report-b2-js-num report-b2b-total-pp-input report-b2b-unit-total-pp" inputmode="decimal" autocomplete="off" title="{{ __('Enter total PP% manually.') }}">
                                    </td>
                                    <td class="report-b2-td report-b2-total-fp">
                                        <input type="number" step="any" name="report[part_b][scheme_progress_revenue][units][{{ $uIdx }}][totals][fp_pct]" value="{{ $uTotFp }}" class="form-control form-control-sm report-b1-input report-b2-js-num report-b2b-total-fp-input report-b2b-unit-total-fp" inputmode="decimal" autocomplete="off" title="{{ __('Enter total FP% manually.') }}">
                                    </td>
                                    <td class="report-b2-td"><span class="report-b2-total-val report-b2b-unit-total-var">—</span></td>
                                    <td class="report-b2-td"></td>
                                    <td class="report-b2-td"></td>
                                </tr>
                            </tfoot>
                        </table>
                    </div>
                    <div class="report-b2-unit-shell__footer">
                        <button type="button" class="report-b2-add-row-btn report-b2b-unit-add-row">
                            <i class="fas fa-plus" aria-hidden="true"></i>
                            {{ __('Add New Row') }}
                        </button>
                    </div>
                </div>
            @endforeach
        </div>
        </div>
    </div>
</div>

<template id="report-b2b-row-template">
    <tr class="report-b2-data-row report-b2b-single-data-row" data-row-index="__R__">
        <td class="report-b2-td report-b2-td-serial"><span class="report-b2-serial-num"></span></td>
        <td class="report-b2-td"><input type="text" name="report[part_b][scheme_progress_revenue][rows][__R__][major_unit_component]" value="" class="form-control form-control-sm report-b1-input" autocomplete="off"></td>
        <td class="report-b2-td"><input type="text" name="report[part_b][scheme_progress_revenue][rows][__R__][measuring_unit]" value="" class="form-control form-control-sm report-b1-input" autocomplete="off"></td>
        <td class="report-b2-td"><input type="text" name="report[part_b][scheme_progress_revenue][rows][__R__][qty_pc_i]" value="" class="form-control form-control-sm report-b1-input" autocomplete="off"></td>
        <td class="report-b2-td"><input type="text" name="report[part_b][scheme_progress_revenue][rows][__R__][physical_progress]" value="" class="form-control form-control-sm report-b1-input" autocomplete="off"></td>
        <td class="report-b2-td"><input type="number" step="any" name="report[part_b][scheme_progress_revenue][rows][__R__][expenditure]" value="" class="form-control form-control-sm report-b1-input report-b2b-js-exp" inputmode="decimal" autocomplete="off"></td>
        <td class="report-b2-td"><input type="number" step="any" name="report[part_b][scheme_progress_revenue][rows][__R__][total_cost]" value="" class="form-control form-control-sm report-b1-input report-b2b-js-tcost" inputmode="decimal" autocomplete="off"></td>
        <td class="report-b2-td"><input type="number" step="any" name="report[part_b][scheme_progress_revenue][rows][__R__][pp_pct]" value="" class="form-control form-control-sm report-b1-input report-b2-modern-input report-b2b-js-pp report-b2-js-num report-b2-input-pp" inputmode="decimal" autocomplete="off"></td>
        <td class="report-b2-td"><input type="number" step="any" name="report[part_b][scheme_progress_revenue][rows][__R__][fp_pct]" value="" class="form-control form-control-sm report-b1-input report-b2-modern-input report-b2b-js-fp report-b2-js-num report-b2-input-fp" inputmode="decimal" autocomplete="off"></td>
        <td class="report-b2-td"><input type="number" step="any" name="report[part_b][scheme_progress_revenue][rows][__R__][variance_pp_fp]" value="" readonly class="form-control form-control-sm report-b1-input report-b2-modern-input report-b2b-variance-out" tabindex="-1" aria-readonly="true"></td>
        <td class="report-b2-td"><input type="text" name="report[part_b][scheme_progress_revenue][rows][__R__][remarks]" value="" class="form-control form-control-sm report-b1-input report-b2-modern-input" autocomplete="off"></td>
        <td class="report-b2-td report-b2-td-actions text-center align-middle">
            <button type="button" class="btn btn-sm report-b2-remove-btn report-b2b-remove-single" title="{{ __('Remove row') }}" aria-label="{{ __('Remove row') }}"><i class="fas fa-times"></i></button>
        </td>
    </tr>
</template>

<template id="report-b2b-unit-block-template">
    <div class="report-b2b-unit-block report-b2-unit-block report-b2-unit-shell mb-3" data-b2b-unit-block>
        <div class="report-b2-unit-shell__head">
            <div class="report-b2-unit-shell__field">
                <label class="report-b2-control-label mb-2 d-block">{{ __('Unit name') }}</label>
                <input type="text" name="report[part_b][scheme_progress_revenue][units][__U__][unit_name]" value="" class="form-control form-control-sm report-b1-input report-b2-modern-input report-b2b-unit-name-input" placeholder="{{ __('e.g. Package A, Civil works') }}" autocomplete="off">
            </div>
            <div class="report-b2-unit-shell__actions">
                <button type="button" class="report-b2-add-row-btn report-b2-add-row-btn--sm report-b2b-add-unit">+ {{ __('Add unit') }}</button>
                <button type="button" class="report-b2-remove-unit-btn report-b2b-remove-unit" title="{{ __('Remove unit') }}">{{ __('Remove unit') }}</button>
            </div>
        </div>
        <div class="table-responsive report-b2-table-scroll">
            <table class="table report-b2-data-table report-b2-data-table--modern report-b2-data-table--revenue mb-0">
                <thead>
                    <tr class="report-b2-head-row report-b2-head-row--flat">
                        <th class="report-b2-th-serial">S#</th>
                        <th class="report-b2-th-major">{{ __('Major unit/components') }}</th>
                        <th class="report-b2-th-num">{{ __('Measuring unit') }}</th>
                        <th class="report-b2-th-num">{{ __('Qty (PC-I)') }}</th>
                        <th class="report-b2-th-num">{{ __('Phys. progress') }}</th>
                        <th class="report-b2-th-num">{{ __('Expenditure') }}</th>
                        <th class="report-b2-th-num">{{ __('Total cost') }}</th>
                        <th class="report-b2-th-num report-b2-th-pp">PP (%)</th>
                        <th class="report-b2-th-num report-b2-th-fp">FP (%)</th>
                        <th class="report-b2-th-num">{{ __('Variance') }}</th>
                        <th class="report-b2-th-num">{{ __('Remarks') }}</th>
                        <th class="report-b2-th-actions" aria-label="{{ __('Row actions') }}"></th>
                    </tr>
                </thead>
                <tbody class="report-b2b-unit-tbody"></tbody>
                <tfoot>
                    <tr class="report-b2-total-row report-b2-total-row--modern">
                        <td class="report-b2-td report-b2-total-label" colspan="2"><strong>{{ __('TOTAL (THIS UNIT)') }}</strong></td>
                        <td class="report-b2-td"><span class="report-b2-total-val report-b2b-unit-total-meas-unit">—</span></td>
                        <td class="report-b2-td"><span class="report-b2-total-val report-b2b-unit-total-qty-pci">—</span></td>
                        <td class="report-b2-td"><span class="report-b2-total-val report-b2b-unit-total-phys">—</span></td>
                        <td class="report-b2-td"><span class="report-b2-total-val report-b2b-unit-total-exp">—</span></td>
                        <td class="report-b2-td"><span class="report-b2-total-val report-b2b-unit-total-tc">—</span></td>
                        <td class="report-b2-td report-b2-total-pp">
                            <input type="number" step="any" name="report[part_b][scheme_progress_revenue][units][__U__][totals][pp_pct]" value="" class="form-control form-control-sm report-b1-input report-b2-js-num report-b2b-total-pp-input report-b2b-unit-total-pp" inputmode="decimal" autocomplete="off" title="{{ __('Enter total PP% manually.') }}">
                        </td>
                        <td class="report-b2-td report-b2-total-fp">
                            <input type="number" step="any" name="report[part_b][scheme_progress_revenue][units][__U__][totals][fp_pct]" value="" class="form-control form-control-sm report-b1-input report-b2-js-num report-b2b-total-fp-input report-b2b-unit-total-fp" inputmode="decimal" autocomplete="off" title="{{ __('Enter total FP% manually.') }}">
                        </td>
                        <td class="report-b2-td"><span class="report-b2-total-val report-b2b-unit-total-var">—</span></td>
                        <td class="report-b2-td"></td>
                        <td class="report-b2-td"></td>
                    </tr>
                </tfoot>
            </table>
        </div>
        <div class="report-b2-unit-shell__footer">
            <button type="button" class="report-b2-add-row-btn report-b2b-unit-add-row">
                <i class="fas fa-plus" aria-hidden="true"></i>
                {{ __('Add New Row') }}
            </button>
        </div>
    </div>
</template>

<template id="report-b2b-unit-row-template">
    <tr class="report-b2-data-row report-b2b-unit-data-row" data-row-index="__R__">
        <td class="report-b2-td report-b2-td-serial"><span class="report-b2-serial-num"></span></td>
        <td class="report-b2-td"><input type="text" name="report[part_b][scheme_progress_revenue][units][__U__][rows][__R__][major_unit_component]" value="" class="form-control form-control-sm report-b1-input" autocomplete="off"></td>
        <td class="report-b2-td"><input type="text" name="report[part_b][scheme_progress_revenue][units][__U__][rows][__R__][measuring_unit]" value="" class="form-control form-control-sm report-b1-input" autocomplete="off"></td>
        <td class="report-b2-td"><input type="text" name="report[part_b][scheme_progress_revenue][units][__U__][rows][__R__][qty_pc_i]" value="" class="form-control form-control-sm report-b1-input" autocomplete="off"></td>
        <td class="report-b2-td"><input type="text" name="report[part_b][scheme_progress_revenue][units][__U__][rows][__R__][physical_progress]" value="" class="form-control form-control-sm report-b1-input" autocomplete="off"></td>
        <td class="report-b2-td"><input type="number" step="any" name="report[part_b][scheme_progress_revenue][units][__U__][rows][__R__][expenditure]" value="" class="form-control form-control-sm report-b1-input report-b2b-js-exp" inputmode="decimal" autocomplete="off"></td>
        <td class="report-b2-td"><input type="number" step="any" name="report[part_b][scheme_progress_revenue][units][__U__][rows][__R__][total_cost]" value="" class="form-control form-control-sm report-b1-input report-b2b-js-tcost" inputmode="decimal" autocomplete="off"></td>
        <td class="report-b2-td"><input type="number" step="any" name="report[part_b][scheme_progress_revenue][units][__U__][rows][__R__][pp_pct]" value="" class="form-control form-control-sm report-b1-input report-b2-modern-input report-b2b-js-pp report-b2-js-num report-b2-input-pp" inputmode="decimal" autocomplete="off"></td>
        <td class="report-b2-td"><input type="number" step="any" name="report[part_b][scheme_progress_revenue][units][__U__][rows][__R__][fp_pct]" value="" class="form-control form-control-sm report-b1-input report-b2-modern-input report-b2b-js-fp report-b2-js-num report-b2-input-fp" inputmode="decimal" autocomplete="off"></td>
        <td class="report-b2-td"><input type="number" step="any" name="report[part_b][scheme_progress_revenue][units][__U__][rows][__R__][variance_pp_fp]" value="" readonly class="form-control form-control-sm report-b1-input report-b2-modern-input report-b2b-variance-out" tabindex="-1" aria-readonly="true"></td>
        <td class="report-b2-td"><input type="text" name="report[part_b][scheme_progress_revenue][units][__U__][rows][__R__][remarks]" value="" class="form-control form-control-sm report-b1-input report-b2-modern-input" autocomplete="off"></td>
        <td class="report-b2-td report-b2-td-actions text-center align-middle">
            <button type="button" class="btn btn-sm report-b2-remove-btn report-b2b-remove-unit-row" title="{{ __('Remove row') }}" aria-label="{{ __('Remove row') }}"><i class="fas fa-times"></i></button>
        </td>
    </tr>
</template>

@push('scripts')
<script>
(function () {
    function b2bModeHidden() {
        return document.getElementById('pms-report-b2b-reporting-mode')
            || document.getElementById('pms-report-unit-reporting-mode');
    }
    function b2bGetMode() {
        var h = b2bModeHidden();
        return h && h.value === 'unit_wise' ? 'unit_wise' : 'single';
    }
    function b2bSetInputsDisabled(wrap, dis) {
        if (!wrap) return;
        wrap.querySelectorAll('input, select, textarea, button').forEach(function (el) {
            el.disabled = !!dis;
        });
    }
    window.pmsApplyB2bUnitModePanels = function () {
        var m = b2bGetMode();
        var b2bSingle = document.getElementById('report-b2b-single-wrap');
        var b2bUnits = document.getElementById('report-b2b-units-wrap');
        if (b2bSingle) {
            b2bSingle.style.display = m === 'single' ? '' : 'none';
            b2bSetInputsDisabled(b2bSingle, m !== 'single');
        }
        if (b2bUnits) {
            b2bUnits.style.display = m === 'unit_wise' ? '' : 'none';
            b2bSetInputsDisabled(b2bUnits, m !== 'unit_wise');
        }
        if (typeof window.pmsSyncB2bExcelTemplateLink === 'function') {
            window.pmsSyncB2bExcelTemplateLink();
        }
    };
    document.querySelectorAll('#report-b2b-root .pms-report-unit-mode-radio[name="b2b_reporting_structure"]').forEach(function (r) {
        r.addEventListener('change', function () {
            if (!r.checked) return;
            var h = b2bModeHidden();
            if (h) h.value = r.value;
            window.pmsApplyB2bUnitModePanels();
        });
    });

    var root = document.getElementById('report-b2b-root');
    var tbody = document.getElementById('report-b2b-tbody');
    var btnAdd = document.getElementById('report-b2b-add-row');
    var tpl = document.getElementById('report-b2b-row-template');
    var unitsContainer = document.getElementById('report-b2b-units-container');
    var tplUnitBlock = document.getElementById('report-b2b-unit-block-template');
    var tplUnitRow = document.getElementById('report-b2b-unit-row-template');
    if (!root || !tbody || !btnAdd || !tpl || !tpl.content) return;

    function parseNum(v) {
        if (v === undefined || v === null) return NaN;
        var s = String(v).replace(/,/g, '').trim();
        if (s === '') return NaN;
        var n = parseFloat(s);
        return isNaN(n) ? NaN : n;
    }
    function fmtNum(n) {
        if (isNaN(n)) return '';
        if (n === 0) return '0';
        return Math.abs(n - Math.round(n)) < 1e-9 ? String(Math.round(n)) : String(Number(n.toFixed(4)));
    }
    function fmtTotal(n) {
        if (isNaN(n)) return '—';
        return fmtNum(n) || '—';
    }
    function fmtPctTotal(n) {
        if (isNaN(n) || !isFinite(n)) return '—';
        if (typeof window.pmsFormatReportPercent === 'function') {
            return window.pmsFormatReportPercent(n);
        }
        return String(n);
    }
    function normalizePctInput(el) {
        if (!el) return;
        if (typeof window.pmsNormalizeReportPercentInput === 'function') {
            window.pmsNormalizeReportPercentInput(el);
            return;
        }
        var n = parseNum(el.value);
        if (isNaN(n)) return;
        el.value = String(n);
    }
    function applyNegStyle(el, n) {
        if (window.pmsApplyReportNegativeStyle) window.pmsApplyReportNegativeStyle(el, n);
    }
    function syncManualTotalVariance(ppEl, fpEl, varEl) {
        if (!varEl) return;
        var pp = parseNum(ppEl && ppEl.value);
        var fp = parseNum(fpEl && fpEl.value);
        if (isNaN(pp) || isNaN(fp)) {
            varEl.textContent = '—';
            applyNegStyle(varEl, NaN);
            return;
        }
        var diff = pp - fp;
        varEl.textContent = fmtPctTotal(diff);
        applyNegStyle(varEl, diff);
    }
    function wireManualTotalInputs(scope) {
        var rootEl = scope || root;
        if (!rootEl) return;
        rootEl.querySelectorAll('.report-b2b-total-pp-input, .report-b2b-total-fp-input').forEach(function (el) {
            if (el.getAttribute('data-b2b-total-wired') === '1') return;
            el.setAttribute('data-b2b-total-wired', '1');
            el.addEventListener('blur', function () {
                normalizePctInput(el);
                var foot = el.closest('tfoot') || el.closest('tr');
                if (!foot) return;
                syncManualTotalVariance(
                    foot.querySelector('.report-b2b-total-pp-input'),
                    foot.querySelector('.report-b2b-total-fp-input'),
                    foot.querySelector('#report-b2b-total-var, .report-b2b-unit-total-var')
                );
            });
            el.addEventListener('input', function () {
                var foot = el.closest('tfoot') || el.closest('tr');
                if (!foot) return;
                syncManualTotalVariance(
                    foot.querySelector('.report-b2b-total-pp-input'),
                    foot.querySelector('.report-b2b-total-fp-input'),
                    foot.querySelector('#report-b2b-total-var, .report-b2b-unit-total-var')
                );
            });
        });
    }
    function rowVariance(tr) {
        var ppEl = tr.querySelector('.report-b2b-js-pp');
        var fpEl = tr.querySelector('.report-b2b-js-fp');
        var out = tr.querySelector('.report-b2b-variance-out');
        if (!out) return;
        var pp = parseNum(ppEl && ppEl.value);
        var fp = parseNum(fpEl && fpEl.value);
        if (isNaN(pp) || isNaN(fp)) {
            out.value = '';
            applyNegStyle(out, NaN);
            return;
        }
        var diff = pp - fp;
        out.value = fmtPctTotal(diff) === '—' ? '' : fmtPctTotal(diff);
        applyNegStyle(out, diff);
    }
    function renumberSingleRows() {
        var rows = tbody.querySelectorAll('.report-b2b-single-data-row');
        rows.forEach(function (tr, i) {
            tr.setAttribute('data-row-index', String(i));
            tr.querySelectorAll('[name]').forEach(function (el) {
                el.name = el.name.replace(/scheme_progress_revenue\]\[rows\]\[(?:\d+|__R__)\]/, 'scheme_progress_revenue][rows][' + i + ']');
            });
            var sn = tr.querySelector('.report-b2-serial-num');
            if (sn) sn.textContent = String(i + 1);
            var rm = tr.querySelector('.report-b2b-remove-single');
            if (rm) rm.style.visibility = rows.length <= 1 ? 'hidden' : 'visible';
        });
    }
    window.pmsRenumberB2bSchemeProgressRevenue = renumberSingleRows;
    function recalcSingleTotals() {
        var rows = tbody.querySelectorAll('.report-b2b-single-data-row');
        var sumExp = 0, sumTc = 0;
        var anyExp = false, anyTc = false;
        rows.forEach(function (tr) {
            var e = parseNum(tr.querySelector('.report-b2b-js-exp') && tr.querySelector('.report-b2b-js-exp').value);
            var t = parseNum(tr.querySelector('.report-b2b-js-tcost') && tr.querySelector('.report-b2b-js-tcost').value);
            if (!isNaN(e)) { sumExp += e; anyExp = true; }
            if (!isNaN(t)) { sumTc += t; anyTc = true; }
        });
        var elMeasUnit = document.getElementById('report-b2b-total-meas-unit');
        var elQtyPcI = document.getElementById('report-b2b-total-qty-pci');
        var elPhys = document.getElementById('report-b2b-total-phys');
        if (elMeasUnit) elMeasUnit.textContent = '—';
        if (elQtyPcI) elQtyPcI.textContent = '—';
        if (elPhys) elPhys.textContent = '—';
        var elE = document.getElementById('report-b2b-total-exp');
        var elT = document.getElementById('report-b2b-total-tc');
        var elPp = document.getElementById('report-b2b-total-pp');
        var elFp = document.getElementById('report-b2b-total-fp');
        var elV = document.getElementById('report-b2b-total-var');
        if (elE) { elE.textContent = anyExp ? fmtTotal(sumExp) : '—'; applyNegStyle(elE, anyExp ? sumExp : NaN); }
        if (elT) { elT.textContent = anyTc ? fmtTotal(sumTc) : '—'; applyNegStyle(elT, anyTc ? sumTc : NaN); }
        syncManualTotalVariance(elPp, elFp, elV);
    }
    function renumberUnitBlocks() {
        if (!unitsContainer) return;
        unitsContainer.querySelectorAll('.report-b2b-unit-block').forEach(function (unitEl, uIdx) {
            var nm = unitEl.querySelector('.report-b2b-unit-name-input');
            if (nm) nm.name = 'report[part_b][scheme_progress_revenue][units][' + uIdx + '][unit_name]';
            unitEl.querySelectorAll('tfoot [name]').forEach(function (el) {
                el.name = el.name.replace(/units\]\[(?:\d+|__U__)\]\[totals\]/, 'units][' + uIdx + '][totals]');
            });
            var utbody = unitEl.querySelector('.report-b2b-unit-tbody');
            if (!utbody) return;
            utbody.querySelectorAll('.report-b2b-unit-data-row').forEach(function (tr, rIdx) {
                tr.setAttribute('data-row-index', String(rIdx));
                var sn = tr.querySelector('.report-b2-serial-num');
                if (sn) sn.textContent = String(rIdx + 1);
                tr.querySelectorAll('[name]').forEach(function (el) {
                    el.name = el.name.replace(
                        /scheme_progress_revenue\]\[units\]\[(?:\d+|__U__)\]\[rows\]\[(?:\d+|__R__)\]/,
                        'scheme_progress_revenue][units][' + uIdx + '][rows][' + rIdx + ']'
                    );
                });
                var rm = tr.querySelector('.report-b2b-remove-unit-row');
                var n = utbody.querySelectorAll('.report-b2b-unit-data-row').length;
                if (rm) rm.style.visibility = n <= 1 ? 'hidden' : 'visible';
            });
            var rmUnit = unitEl.querySelector('.report-b2b-remove-unit');
            if (rmUnit) rmUnit.style.visibility = unitsContainer.querySelectorAll('.report-b2b-unit-block').length <= 1 ? 'hidden' : 'visible';
        });
    }
    function recalcUnitBlockTotals(unitEl) {
        if (!unitEl) return;
        var utbody = unitEl.querySelector('.report-b2b-unit-tbody');
        if (!utbody) return;
        var rows = utbody.querySelectorAll('.report-b2b-unit-data-row');
        var sumExp = 0, sumTc = 0;
        var anyExp = false, anyTc = false;
        rows.forEach(function (tr) {
            var e = parseNum(tr.querySelector('.report-b2b-js-exp') && tr.querySelector('.report-b2b-js-exp').value);
            var t = parseNum(tr.querySelector('.report-b2b-js-tcost') && tr.querySelector('.report-b2b-js-tcost').value);
            if (!isNaN(e)) { sumExp += e; anyExp = true; }
            if (!isNaN(t)) { sumTc += t; anyTc = true; }
        });
        var foot = unitEl.querySelector('tfoot');
        if (!foot) return;
        var qm = foot.querySelector('.report-b2b-unit-total-meas-unit');
        var qq = foot.querySelector('.report-b2b-unit-total-qty-pci');
        var qp = foot.querySelector('.report-b2b-unit-total-phys');
        if (qm) qm.textContent = '—';
        if (qq) qq.textContent = '—';
        if (qp) qp.textContent = '—';
        var qe = foot.querySelector('.report-b2b-unit-total-exp');
        var qt = foot.querySelector('.report-b2b-unit-total-tc');
        var qpp = foot.querySelector('.report-b2b-unit-total-pp');
        var qfp = foot.querySelector('.report-b2b-unit-total-fp');
        var qv = foot.querySelector('.report-b2b-unit-total-var');
        if (qe) { qe.textContent = anyExp ? fmtTotal(sumExp) : '—'; applyNegStyle(qe, anyExp ? sumExp : NaN); }
        if (qt) { qt.textContent = anyTc ? fmtTotal(sumTc) : '—'; applyNegStyle(qt, anyTc ? sumTc : NaN); }
        syncManualTotalVariance(qpp, qfp, qv);
    }
    function recalcAllUnitTotals() {
        if (!unitsContainer) return;
        unitsContainer.querySelectorAll('.report-b2b-unit-block').forEach(recalcUnitBlockTotals);
    }
    function wireRow(tr, utbody) {
        tr.querySelectorAll('.report-b2b-js-pp, .report-b2b-js-fp').forEach(function (el) {
            el.addEventListener('blur', function () {
                normalizePctInput(el);
                rowVariance(tr);
            });
            el.addEventListener('input', function () {
                rowVariance(tr);
                if (utbody) recalcUnitBlockTotals(tr.closest('.report-b2b-unit-block'));
                else recalcSingleTotals();
            });
        });
        tr.querySelectorAll('.report-b2b-js-exp, .report-b2b-js-tcost').forEach(function (el) {
            el.addEventListener('input', function () {
                if (utbody) recalcUnitBlockTotals(tr.closest('.report-b2b-unit-block'));
                else recalcSingleTotals();
            });
        });
        normalizePctInput(tr.querySelector('.report-b2b-js-pp'));
        normalizePctInput(tr.querySelector('.report-b2b-js-fp'));
        rowVariance(tr);
        var rmSingle = tr.querySelector('.report-b2b-remove-single');
        if (rmSingle) {
            rmSingle.addEventListener('click', function () {
                if (tbody.querySelectorAll('.report-b2b-single-data-row').length <= 1) return;
                tr.parentNode.removeChild(tr);
                renumberSingleRows();
                tbody.querySelectorAll('.report-b2b-single-data-row').forEach(rowVariance);
                recalcSingleTotals();
            });
        }
        var rmUnitRow = tr.querySelector('.report-b2b-remove-unit-row');
        if (rmUnitRow && utbody) {
            rmUnitRow.addEventListener('click', function () {
                if (utbody.querySelectorAll('.report-b2b-unit-data-row').length <= 1) return;
                var block = tr.closest('.report-b2b-unit-block');
                tr.parentNode.removeChild(tr);
                renumberUnitBlocks();
                utbody.querySelectorAll('.report-b2b-unit-data-row').forEach(rowVariance);
                if (block) recalcUnitBlockTotals(block);
            });
        }
    }
    tbody.querySelectorAll('.report-b2b-single-data-row').forEach(function (tr) {
        wireRow(tr, null);
        rowVariance(tr);
    });
    btnAdd.addEventListener('click', function () {
        var ix = tbody.querySelectorAll('.report-b2b-single-data-row').length;
        var frag = document.importNode(tpl.content, true);
        var tr = frag.querySelector('tr');
        if (!tr) return;
        tr.querySelectorAll('[name]').forEach(function (el) {
            el.name = el.name.replace(/__R__/g, String(ix));
        });
        tbody.appendChild(tr);
        renumberSingleRows();
        wireRow(tr, null);
        rowVariance(tr);
        recalcSingleTotals();
        var inp = tr.querySelector('input[name*="[major_unit_component]"]');
        if (inp) inp.focus();
    });
    function initUnitBlockInteractions(unitEl) {
        if (!unitEl || !unitsContainer || !tplUnitRow) return;
        var rmU = unitEl.querySelector('.report-b2b-remove-unit');
        if (rmU) {
            rmU.addEventListener('click', function () {
                if (unitsContainer.querySelectorAll('.report-b2b-unit-block').length <= 1) return;
                unitEl.parentNode.removeChild(unitEl);
                renumberUnitBlocks();
                recalcAllUnitTotals();
            });
        }
        var addR = unitEl.querySelector('.report-b2b-unit-add-row');
        if (addR) {
            addR.addEventListener('click', function () {
                var tbodyU = unitEl.querySelector('.report-b2b-unit-tbody');
                if (!tbodyU || !tplUnitRow) return;
                var uix = Array.prototype.indexOf.call(unitsContainer.querySelectorAll('.report-b2b-unit-block'), unitEl);
                var rix = tbodyU.querySelectorAll('.report-b2b-unit-data-row').length;
                var rf = document.importNode(tplUnitRow.content, true);
                var t2 = rf.querySelector('tr');
                if (!t2) return;
                t2.querySelectorAll('[name]').forEach(function (el) {
                    el.name = el.name.replace(/__U__/g, String(uix)).replace(/__R__/g, String(rix));
                });
                tbodyU.appendChild(t2);
                renumberUnitBlocks();
                wireRow(t2, tbodyU);
                rowVariance(t2);
                recalcUnitBlockTotals(unitEl);
            });
        }
    }
    function appendUnitFromTemplate() {
        if (!tplUnitBlock || !unitsContainer || !tplUnitRow) return;
        var uIdx = unitsContainer.querySelectorAll('.report-b2b-unit-block').length;
        var frag = document.importNode(tplUnitBlock.content, true);
        var unitEl = frag.querySelector('.report-b2b-unit-block');
        if (!unitEl) return;
        unitEl.querySelectorAll('[name]').forEach(function (el) {
            el.name = el.name.replace(/__U__/g, String(uIdx));
        });
        var utbody = unitEl.querySelector('.report-b2b-unit-tbody');
        var rfrag = document.importNode(tplUnitRow.content, true);
        var tr = rfrag.querySelector('tr');
        if (tr && utbody) {
            tr.querySelectorAll('[name]').forEach(function (el) {
                el.name = el.name.replace(/__U__/g, String(uIdx)).replace(/__R__/g, '0');
            });
            utbody.appendChild(tr);
            wireRow(tr, utbody);
            rowVariance(tr);
        }
        unitsContainer.appendChild(unitEl);
        renumberUnitBlocks();
        initUnitBlockInteractions(unitEl);
        wireManualTotalInputs(unitEl);
        recalcUnitBlockTotals(unitEl);
    }
    if (tplUnitBlock && unitsContainer && tplUnitRow) {
        unitsContainer.addEventListener('click', function (e) {
            var btn = e.target && e.target.closest ? e.target.closest('.report-b2b-add-unit') : null;
            if (!btn) return;
            e.preventDefault();
            appendUnitFromTemplate();
        });
        unitsContainer.querySelectorAll('.report-b2b-unit-block').forEach(function (unitEl) {
            unitEl.querySelectorAll('.report-b2b-unit-data-row').forEach(function (tr) {
                wireRow(tr, unitEl.querySelector('.report-b2b-unit-tbody'));
                rowVariance(tr);
            });
            initUnitBlockInteractions(unitEl);
        });
        renumberUnitBlocks();
        recalcAllUnitTotals();
    }
    function getB2bMode() {
        return b2bGetMode();
    }

    function setB2bRowValues(tr, row) {
        row = row || {};
        if (!row.qty_pc_i && row.measuring_unit_qty_pci) {
            row = Object.assign({}, row, { qty_pc_i: row.measuring_unit_qty_pci });
        }
        var fields = [
            ['major_unit_component', 'input[name*="[major_unit_component]"]'],
            ['measuring_unit', 'input[name*="[measuring_unit]"]'],
            ['qty_pc_i', 'input[name*="[qty_pc_i]"]'],
            ['physical_progress', 'input[name*="[physical_progress]"]'],
            ['expenditure', '.report-b2b-js-exp'],
            ['total_cost', '.report-b2b-js-tcost'],
            ['pp_pct', '.report-b2b-js-pp'],
            ['fp_pct', '.report-b2b-js-fp'],
            ['remarks', 'input[name*="[remarks]"]']
        ];
        fields.forEach(function (pair) {
            var el = tr.querySelector(pair[1]);
            if (el && row[pair[0]] != null && String(row[pair[0]]) !== '') {
                el.value = String(row[pair[0]]);
                if (pair[0] === 'pp_pct' || pair[0] === 'fp_pct') {
                    normalizePctInput(el);
                }
            }
        });
    }

    function appendB2bSingleRowFromData(row) {
        var frag = document.importNode(tpl.content, true);
        var tr = frag.querySelector('tr');
        if (!tr) return;
        tbody.appendChild(tr);
        setB2bRowValues(tr, row || {});
        renumberSingleRows();
        wireRow(tr, null);
        rowVariance(tr);
    }

    window.pmsB2bReplaceSingleRows = function (rows) {
        if (getB2bMode() !== 'single') return false;
        if (!Array.isArray(rows) || !rows.length) return false;
        tbody.querySelectorAll('.report-b2b-single-data-row').forEach(function (tr) {
            tr.parentNode.removeChild(tr);
        });
        rows.forEach(appendB2bSingleRowFromData);
        recalcSingleTotals();
        return true;
    };

    function appendB2bUnitRowFromData(unitEl, row) {
        var tbodyU = unitEl.querySelector('.report-b2b-unit-tbody');
        if (!tbodyU || !tplUnitRow) return;
        var rf = document.importNode(tplUnitRow.content, true);
        var tr = rf.querySelector('tr');
        if (!tr) return;
        tbodyU.appendChild(tr);
        setB2bRowValues(tr, row || {});
        wireRow(tr, tbodyU);
        rowVariance(tr);
    }

    window.pmsB2bReplaceUnitWiseRows = function (units) {
        if (getB2bMode() !== 'unit_wise' || !unitsContainer || !tplUnitBlock || !tplUnitRow) return false;
        if (!Array.isArray(units) || !units.length) return false;
        unitsContainer.innerHTML = '';
        units.forEach(function (unit) {
            var frag = document.importNode(tplUnitBlock.content, true);
            var unitEl = frag.querySelector('.report-b2b-unit-block');
            if (!unitEl) return;
            var nameInp = unitEl.querySelector('.report-b2b-unit-name-input');
            if (nameInp) nameInp.value = unit.unit_name != null ? String(unit.unit_name) : '';
            var unitRows = Array.isArray(unit.rows) && unit.rows.length ? unit.rows : [{}];
            unitRows.forEach(function (row) { appendB2bUnitRowFromData(unitEl, row); });
            unitsContainer.appendChild(unitEl);
            initUnitBlockInteractions(unitEl);
            recalcUnitBlockTotals(unitEl);
        });
        renumberUnitBlocks();
        recalcAllUnitTotals();
        return true;
    };

    var excelTemplateBase = @json(route('reports.part-b.scheme-progress-revenue.excel-template'));
    function syncB2bExcelTemplateLink() {
        var link = document.getElementById('report-b2b-excel-template-link');
        var m = getB2bMode();
        if (link) link.href = excelTemplateBase + (excelTemplateBase.indexOf('?') >= 0 ? '&' : '?') + 'mode=' + encodeURIComponent(m);
    }
    window.pmsSyncB2bExcelTemplateLink = syncB2bExcelTemplateLink;
    syncB2bExcelTemplateLink();

    var excelBtn = document.getElementById('report-b2b-excel-import-btn');
    var excelFile = document.getElementById('report-b2b-excel-import-file');
    if (excelBtn && excelFile) {
        excelBtn.addEventListener('click', function () { excelFile.click(); });
        excelFile.addEventListener('change', function () {
            var file = excelFile.files && excelFile.files[0];
            excelFile.value = '';
            if (!file) return;
            var fd = new FormData();
            fd.append('file', file);
            fd.append('mode', getB2bMode());
            var csrf = document.querySelector('meta[name="csrf-token"]');
            if (csrf) fd.append('_token', csrf.getAttribute('content'));
            excelBtn.disabled = true;
            fetch(@json(route('reports.part-b.scheme-progress-revenue.excel-import')), {
                method: 'POST',
                body: fd,
                headers: { Accept: 'application/json', 'X-Requested-With': 'XMLHttpRequest' }
            })
                .then(function (r) { return r.json().then(function (d) { return { ok: r.ok, data: d }; }); })
                .then(function (res) {
                    if (!res.ok || !res.data) {
                        throw new Error((res.data && res.data.message) ? res.data.message : 'Import failed.');
                    }
                    var mode = res.data.mode || getB2bMode();
                    var ok = false;
                    var n = 0;
                    if (mode === 'unit_wise') {
                        ok = window.pmsB2bReplaceUnitWiseRows(res.data.units);
                        (res.data.units || []).forEach(function (u) {
                            n += (u.rows && u.rows.length) ? u.rows.length : 0;
                        });
                    } else {
                        ok = window.pmsB2bReplaceSingleRows(res.data.rows);
                        n = (res.data.rows && res.data.rows.length) ? res.data.rows.length : 0;
                    }
                    if (!ok) {
                        var needLabel = mode === 'unit_wise' ? 'Unit-wise' : 'Single';
                        throw new Error('Switch to ' + needLabel + ' reporting structure before importing this file.');
                    }
                    var msg = n + ' row(s) imported.';
                    if (typeof Swal !== 'undefined' && Swal.fire) {
                        Swal.fire({ icon: 'success', title: @json(__('Imported')), text: msg, timer: 2200, showConfirmButton: false });
                    } else {
                        alert(msg);
                    }
                })
                .catch(function (e) {
                    alert(e && e.message ? e.message : 'Import failed.');
                })
                .finally(function () { excelBtn.disabled = false; });
        });
    }

    function emptyB2bRow() {
        return {
            major_unit_component: '',
            measuring_unit: '',
            qty_pc_i: '',
            physical_progress: '',
            expenditure: '',
            total_cost: '',
            pp_pct: '',
            fp_pct: '',
            variance_pp_fp: '',
            remarks: ''
        };
    }

    function readB2bRowFromTr(tr) {
        function val(sel) {
            var el = tr.querySelector(sel);
            return el && el.value != null ? String(el.value) : '';
        }
        return {
            major_unit_component: val('input[name*="[major_unit_component]"]'),
            measuring_unit: val('input[name*="[measuring_unit]"]'),
            qty_pc_i: val('input[name*="[qty_pc_i]"]'),
            physical_progress: val('input[name*="[physical_progress]"]'),
            expenditure: val('.report-b2b-js-exp'),
            total_cost: val('.report-b2b-js-tcost'),
            pp_pct: val('.report-b2b-js-pp'),
            fp_pct: val('.report-b2b-js-fp'),
            variance_pp_fp: val('.report-b2b-variance-out'),
            remarks: val('input[name*="[remarks]"]')
        };
    }

    window.pmsCollectB2bSchemeProgressRevenue = function () {
        renumberSingleRows();
        if (typeof renumberUnitBlocks === 'function') {
            renumberUnitBlocks();
        }
        var outRows = [];
        if (tbody) {
            tbody.querySelectorAll('.report-b2b-single-data-row').forEach(function (tr) {
                outRows.push(readB2bRowFromTr(tr));
            });
        }
        if (outRows.length === 0) {
            outRows.push(emptyB2bRow());
        }
        var outUnits = [];
        if (unitsContainer) {
            unitsContainer.querySelectorAll('.report-b2b-unit-block').forEach(function (unitEl) {
                var nameInp = unitEl.querySelector('.report-b2b-unit-name-input');
                var unitRows = [];
                var utbody = unitEl.querySelector('.report-b2b-unit-tbody');
                if (utbody) {
                    utbody.querySelectorAll('.report-b2b-unit-data-row').forEach(function (tr) {
                        unitRows.push(readB2bRowFromTr(tr));
                    });
                }
                if (unitRows.length === 0) {
                    unitRows.push(emptyB2bRow());
                }
                outUnits.push({
                    unit_name: nameInp ? String(nameInp.value || '') : '',
                    rows: unitRows,
                    totals: (function () {
                        var pp = unitEl.querySelector('tfoot .report-b2b-total-pp-input');
                        var fp = unitEl.querySelector('tfoot .report-b2b-total-fp-input');
                        return { pp_pct: pp ? String(pp.value || '') : '', fp_pct: fp ? String(fp.value || '') : '' };
                    })()
                });
            });
        }
        var totPp = document.getElementById('report-b2b-total-pp');
        var totFp = document.getElementById('report-b2b-total-fp');
        return {
            reporting_mode: getB2bMode(),
            rows: outRows,
            units: outUnits,
            totals: { pp_pct: totPp ? String(totPp.value || '') : '', fp_pct: totFp ? String(totFp.value || '') : '' }
        };
    };

    window.pmsApplyB2bUnitModePanels();
    wireManualTotalInputs(root);
    root.querySelectorAll('.report-b2b-total-pp-input, .report-b2b-total-fp-input').forEach(normalizePctInput);
    recalcSingleTotals();
    if (typeof recalcAllUnitTotals === 'function') recalcAllUnitTotals();
})();
</script>
@endpush