@extends('layouts.app')
@section('title', $pageTitle ?? 'CSR Costing')

@section('contents')
<section class="content">
    <div class="container-fluid csr-boq-show-page">
        @php
            $scheduleLines = $project->lines->where('line_kind', 'schedule')->values();
            $nonScheduledLines = $project->lines->where('line_kind', 'item_b')->sortBy('sort_order')->values();
            $boqTotal = (float) ($totals['grand'] ?? $totals['item_a'] ?? 0);
            $_showTotal = \App\Support\RatePresentation::pkrRound3Split($boqTotal);
            $schemeBoqLock = $schemeBoqLock ?? ['locked' => false];
            $boqLocked = (bool) ($schemeBoqLock['locked'] ?? false);
            $nsStartIdx = $scheduleLines->count();
        @endphp

        @if ($boqLocked)
        <div class="alert alert-warning shadow-sm mb-3">
            <i class="fas fa-lock mr-1"></i> {{ $schemeBoqLock['reason'] ?? 'Cost Estimate is locked while PC-I is approved.' }}
        </div>
        @endif

        @if (session('status'))
        <div class="alert alert-success shadow-sm mb-3">{{ session('status') }}</div>
        @endif

        <div class="card csr-boq-panel csr-boq-show-hero mb-3">
            <div class="card-body csr-boq-show-hero__body">
                <div class="row align-items-start">
                    <div class="col-lg-8">
                        <p class="csr-boq-show-hero__eyebrow mb-2">Cost Estimate</p>
                        <h1 class="csr-boq-show-hero__title mb-3">{{ $project->name }}</h1>
                        <div class="csr-boq-show-hero__meta">
                            @if ($project->bpms_scheme_label)
                            <span class="csr-boq-show-hero__chip" title="Linked scheme">
                                <i class="fas fa-project-diagram" aria-hidden="true"></i>
                                <span>{{ $project->bpms_scheme_label }}</span>
                            </span>
                            @endif
                            @if ($project->csrBook)
                            <span class="csr-boq-show-hero__chip" title="CSR book">
                                <i class="fas fa-book" aria-hidden="true"></i>
                                <span>{{ $project->csrBook->name }}</span>
                            </span>
                            @endif
                            @if ($project->scheme_reference)
                            <span class="csr-boq-show-hero__chip csr-boq-show-hero__chip--muted" title="Notes">
                                <i class="fas fa-sticky-note" aria-hidden="true"></i>
                                <span>{{ $project->scheme_reference }}</span>
                            </span>
                            @endif
                        </div>
                        <div class="csr-boq-show-hero__status mt-3">
                            @if ($project->isPublished())
                                <span class="badge badge-success csr-boq-show-hero__badge">
                                    <i class="fas fa-check-circle mr-1" aria-hidden="true"></i>Published {{ $project->published_at?->timezone(config('app.timezone'))->format('d M Y, H:i') }}
                                </span>
                            @else
                                <span class="badge badge-secondary csr-boq-show-hero__badge">
                                    <i class="fas fa-pencil-alt mr-1" aria-hidden="true"></i>Draft — not published yet
                                </span>
                            @endif
                            @if ($boqLocked)
                                <span class="badge badge-warning csr-boq-show-hero__badge ml-1">
                                    <i class="fas fa-lock mr-1" aria-hidden="true"></i>Locked
                                </span>
                            @endif
                        </div>
                    </div>
                    <div class="col-lg-4 mt-3 mt-lg-0">
                        <div class="csr-boq-show-hero__total-card text-lg-right">
                            <p class="csr-boq-show-hero__total-label mb-1">Cost Estimate Total</p>
                            <p class="csr-boq-show-hero__total-amount mb-0">
                                <span class="csr-boq-show-hero__total-rs">Rs.</span><span class="csr-boq-show-hero__total-main">{{ $_showTotal['main'] }}</span><span class="csr-boq-show-hero__total-tail">{{ $_showTotal['tail'] }}</span>
                            </p>
                        </div>
                    </div>
                </div>
                <div class="csr-boq-show-hero__actions">
                    @if (can_csr_boq_capability('list') || can_csr_boq_capability('view'))
                    <a href="{{ route('csr-costing.boq.index') }}" class="btn btn-outline-secondary btn-sm csr-boq-show-hero__btn">
                        <i class="fas fa-th-list mr-1" aria-hidden="true"></i>All Cost Estimates
                    </a>
                    @endif
                    @if ($project->bpms_scheme_id)
                    <a href="{{ route('csr-costing.boq.index', ['open_scheme' => $project->bpms_scheme_id, 'panel' => 'grand']) }}" class="btn btn-outline-primary btn-sm csr-boq-show-hero__btn">
                        <i class="fas fa-table mr-1" aria-hidden="true"></i>Grand Summary
                    </a>
                    @endif
                    @if (can_csr_boq_capability('edit') && ! $boqLocked)
                    <a href="{{ route('csr-costing.boq.wizard', [$project, 6]) }}" class="btn btn-primary btn-sm csr-boq-show-hero__btn shadow-sm">
                        <i class="fas fa-edit mr-1" aria-hidden="true"></i>Edit Cost Estimate
                    </a>
                    <a href="{{ route('csr-costing.boq.edit', $project) }}" class="btn btn-outline-primary btn-sm csr-boq-show-hero__btn">
                        <i class="fas fa-cog mr-1" aria-hidden="true"></i>Edit details
                    </a>
                    @endif
                    @if (can_csr_boq_capability('publish') && ! $project->isPublished() && ! $boqLocked)
                    <form method="post" action="{{ route('csr-costing.boq.publish', $project) }}" class="d-inline csr-boq-show-hero__btn" onsubmit="return confirm('Publish this Cost Estimate? Published Cost Estimates are visible on PC-I and scheme status will show Published.');">
                        @csrf
                        <button type="submit" class="btn btn-success btn-sm shadow-sm">
                            <i class="fas fa-upload mr-1" aria-hidden="true"></i>Publish Cost Estimate
                        </button>
                    </form>
                    @endif
                    @if (can_csr_boq_capability('delete') && ! $boqLocked)
                    <form method="post" action="{{ route('csr-costing.boq.destroy', $project) }}" class="d-inline csr-boq-show-hero__btn" onsubmit="return confirm('Delete this Cost Estimate and all lines?');">
                        @csrf
                        @method('DELETE')
                        <button type="submit" class="btn btn-outline-danger btn-sm">
                            <i class="fas fa-trash-alt mr-1" aria-hidden="true"></i>Delete
                        </button>
                    </form>
                    @endif
                </div>
            </div>
        </div>

        <div class="card csr-boq-panel csr-boq-item-a-card mb-3">
            <div class="card-header csr-boq-item-a-card__head border-0">
                <h3 class="card-title mb-0 text-white">Cost Estimate Schedule</h3>
                <p class="small mb-0 mt-2 csr-boq-item-a-card__sub">Est QTY × selected labour and/or composite rates. Grouped by chapter.</p>
            </div>
            <div class="card-body p-0">
                <div class="boq-sheet-h-scroll w-100 min-w-0 p-2">
                    <div class="boq-sheet-surface boq-wizard-sheet-wrap min-w-0 w-100">
                        <table class="boq-sheet-table boq-wizard-sheet-table table table-sm table-fixed text-left mb-0 boq-sheet-table--primary boq-sheet-table--simplified">
                            <colgroup>
                                <col style="width:4rem" />
                                <col />
                                <col style="width:6rem" />
                                <col style="width:7rem" />
                                <col style="width:8rem" />
                                <col style="width:8rem" />
                                <col style="width:8rem" />
                            </colgroup>
                            <thead>
                                <tr>
                                    <th class="boq-th-center">Bill</th>
                                    <th class="boq-th-desc">Description</th>
                                    <th class="boq-th-center">Est QTY</th>
                                    <th>Unit</th>
                                    <th class="boq-th-num">Labour Rs</th>
                                    <th class="boq-th-num">Composite Rs</th>
                                    <th class="boq-th-num">Total Amount</th>
                                </tr>
                            </thead>
                            <tbody>
                            @php
                                $boqShowLastChapterId = null;
                                $footShowTotal = 0.0;
                            @endphp
                            @forelse ($scheduleLines as $lineIndex => $line)
                                @php
                                    $lineLetter = \App\Support\BoqLineLetters::forIndex($lineIndex);
                                    $chapter = $line->scheduleItem?->section?->chapter;
                                    $chapterId = $chapter?->id;
                                    $showChapterBanner = $chapter !== null && (int) $chapterId !== (int) ($boqShowLastChapterId ?? 0);
                                    $compactDesc = $chapter !== null;
                                    if ($showChapterBanner) {
                                        $boqShowLastChapterId = $chapterId;
                                    }
                                    if ($chapter === null) {
                                        $boqShowLastChapterId = null;
                                        $compactDesc = false;
                                    }
                                    $qty = (float) $line->quantity;
                                    $labourRate = (float) ($line->labour_rate_pkr ?? 0);
                                    $compositeRate = (float) ($line->composite_rate_pkr ?? 0);
                                    $dbLabour = (float) ($line->scheduleItem?->labour_rate_pkr ?? $labourRate);
                                    $dbComposite = (float) ($line->scheduleItem?->composite_rate_pkr ?? $compositeRate);
                                    $useLabour = (bool) ($line->include_labour_in_total ?? false);
                                    $useComposite = (bool) ($line->include_composite_in_total ?? true);
                                    if ($useLabour && $useComposite) {
                                        $useComposite = false;
                                    }
                                    if (! $useLabour && ! $useComposite) {
                                        $useComposite = true;
                                    }
                                    $lineTotal = (float) ($line->line_total ?? 0);
                                    if ($lineTotal <= 0) {
                                        $rate = $useLabour ? $labourRate : $compositeRate;
                                        $lineTotal = \App\Services\PC\BoqLineCalculator::materialLineTotal($rate, null, null, $qty);
                                    }
                                    $footShowTotal += max(0.0, $lineTotal);
                                @endphp
                                @if ($showChapterBanner)
                                <tr class="boq-chapter-band">
                                    <td colspan="7">
                                        <span class="d-block text-uppercase font-weight-bold text-muted boq-chapter-line--chapter">{{ $chapter->name }}</span>
                                        @if ($chapter->relationLoaded('workType') && $chapter->workType)
                                            <span class="d-block mt-1 font-weight-bold text-primary boq-chapter-line--worktype">{{ $chapter->workType->name }}</span>
                                        @endif
                                    </td>
                                </tr>
                                @endif
                                <tr class="schedule-row">
                                    <td class="text-center small align-middle font-weight-bold text-primary">{{ $lineLetter }}</td>
                                    <td>@include('csr-costing.boq.partials.schedule-line-description', ['line' => $line, 'compact' => $compactDesc])</td>
                                    <td class="boq-td-num text-monospace small align-middle text-right">{{ \App\Support\RatePresentation::pkr11($qty) }}</td>
                                    <td class="small align-middle">{{ $line->unit ?: '—' }}</td>
                                    <td class="boq-td-num text-monospace align-middle text-right">
                                        @if ($useLabour)<span class="badge badge-success mr-1">Use</span>@endif
                                        {{ \App\Support\RatePresentation::pkrRound3($labourRate) }}
                                        @if (abs($labourRate - $dbLabour) > 0.0005)
                                            <span class="d-block boq-db-rate-hint" style="font-size:0.68rem;color:#6c757d;">DB: {{ \App\Support\RatePresentation::pkrRound3($dbLabour) }}</span>
                                        @endif
                                    </td>
                                    <td class="boq-td-num text-monospace align-middle text-right">
                                        @if ($useComposite)<span class="badge badge-success mr-1">Use</span>@endif
                                        {{ \App\Support\RatePresentation::pkrRound3($compositeRate) }}
                                        @if (abs($compositeRate - $dbComposite) > 0.0005)
                                            <span class="d-block boq-db-rate-hint" style="font-size:0.68rem;color:#6c757d;">DB: {{ \App\Support\RatePresentation::pkrRound3($dbComposite) }}</span>
                                        @endif
                                    </td>
                                    <td class="boq-td-num text-monospace align-middle font-weight-bold text-right">{{ \App\Support\RatePresentation::pkrRound3($lineTotal) }}</td>
                                </tr>
                            @empty
                                <tr>
                                    <td colspan="7" class="text-center text-muted py-5">No schedule lines yet.</td>
                                </tr>
                            @endforelse
                            </tbody>
                            @if ($scheduleLines->isNotEmpty())
                            <tfoot>
                                <tr class="boq-sheet-tfoot">
                                    <td colspan="6" class="text-left">
                                        <span class="d-block text-uppercase small text-muted">Cost Estimate Total</span>
                                        <span class="font-weight-bold">Sum of schedule line amounts</span>
                                    </td>
                                    <td class="boq-td-num text-monospace font-weight-bold text-right">{{ \App\Support\RatePresentation::pkrRound3($footShowTotal) }}</td>
                                </tr>
                            </tfoot>
                            @endif
                        </table>
                    </div>
                </div>
            </div>
        </div>

        @if ($nonScheduledLines->isNotEmpty())
        <div class="card csr-boq-panel mb-3">
            <div class="card-header border-0">
                <h3 class="card-title mb-0 font-weight-bold">Non Scheduled Items</h3>
            </div>
            <div class="card-body p-0">
                <div class="table-responsive p-2">
                    <table class="table table-sm table-bordered mb-0">
                        <thead class="thead-light">
                            <tr>
                                <th style="width:4rem" class="text-center">S No</th>
                                <th>Description</th>
                                <th style="width:7rem" class="text-right">Qty</th>
                                <th style="width:8rem" class="text-right">Price</th>
                                <th style="width:9rem" class="text-right">Amount</th>
                                <th style="width:12rem">Upload</th>
                            </tr>
                        </thead>
                        <tbody>
                            @foreach ($nonScheduledLines as $nsIdx => $nsLine)
                                @php
                                    $nsAttachments = \App\Support\BoqSchemeFileUrls::enrichBoqAttachments(
                                        (int) $project->id,
                                        is_array($nsLine->item_b_attachments ?? null) ? $nsLine->item_b_attachments : []
                                    );
                                    $nsQty = (float) ($nsLine->quantity ?? 0);
                                    $nsPrice = (float) ($nsLine->composite_rate_pkr ?? 0);
                                    $nsAmt = (float) ($nsLine->line_total ?? $nsLine->item_b_amount ?? 0);
                                @endphp
                                <tr>
                                    <td class="text-center font-weight-bold text-primary">{{ \App\Support\BoqLineLetters::forIndex($nsStartIdx + $nsIdx) }}</td>
                                    <td>{{ $nsLine->description_snapshot ?: $nsLine->item_b_title }}</td>
                                    <td class="text-right text-monospace">{{ $nsQty > 0 ? \App\Support\RatePresentation::pkrRound3($nsQty) : '—' }}</td>
                                    <td class="text-right text-monospace">{{ $nsPrice > 0 ? \App\Support\RatePresentation::pkrRound3($nsPrice) : '—' }}</td>
                                    <td class="text-right text-monospace">{{ \App\Support\RatePresentation::pkrRound3($nsAmt) }}</td>
                                    <td class="small">
                                        @forelse ($nsAttachments as $att)
                                            @if (! empty($att['view_url']))
                                            <a href="{{ $att['view_url'] }}" target="_blank" rel="noopener" class="d-block text-nowrap mb-1">
                                                <i class="fas fa-file-pdf text-danger mr-1" aria-hidden="true"></i>{{ $att['original_name'] ?? 'View file' }}
                                            </a>
                                            @endif
                                        @empty
                                            <span class="text-muted">—</span>
                                        @endforelse
                                    </td>
                                </tr>
                            @endforeach
                        </tbody>
                    </table>
                </div>
            </div>
        </div>
        @endif

        <div class="csr-boq-calculation-summary csr-boq-calculation-summary--show mb-0">
            <div class="csr-boq-calculation-summary__grand">
                <h3 class="csr-boq-calculation-summary__grand-title mb-0">Cost Estimate Total</h3>
                <div class="csr-boq-calculation-summary__amount csr-boq-calculation-summary__amount--grand text-right">
                    <p class="csr-boq-calculation-summary__amount-line csr-boq-calculation-summary__amount-line--grand mb-0">
                        <span class="csr-boq-calculation-summary__rs csr-boq-calculation-summary__rs--grand">Rs.</span><span class="csr-boq-calculation-summary__main csr-boq-calculation-summary__main--grand">{{ $_showTotal['main'] }}</span><span class="csr-boq-calculation-summary__tail csr-boq-calculation-summary__tail--grand">{{ $_showTotal['tail'] }}</span>
                    </p>
                </div>
            </div>
            @if ($project->bpms_scheme_id)
            <div class="csr-boq-calculation-summary__footer border-top pt-3 mt-2">
                <p class="text-muted small mb-2">Non-scheduled items, grand total, engineer estimate, and uploaded files are managed at scheme level.</p>
                <a href="{{ route('csr-costing.boq.index', ['open_scheme' => $project->bpms_scheme_id, 'panel' => 'grand']) }}" class="btn btn-outline-primary btn-sm">Open Grand Summary</a>
            </div>
            @endif
        </div>
    </div>
</section>
@endsection