@extends('reports.pdf.layout')

@section('title', $data['meta']['title'])

@php
    $meta   = $data['meta'];
    $kpis   = $data['kpis'];
    $series = $data['monthly_series'];
    $split  = $data['internal_external_split'];
    $top    = $data['top_vehicles'];

    $fmtNum = function ($v, $unit = '') {
        if ($v === null) return '—';
        $s = is_numeric($v) ? number_format((float) $v, 0, ',', ' ') : (string) $v;
        return trim($s . ' ' . $unit);
    };
    $fmtDelta = function ($v, $unit = '%') {
        if ($v === null) return null;
        $sign = $v > 0 ? '+' : '';
        return $sign . number_format((float) $v, 1, ',', ' ') . $unit;
    };
    $deltaClass = function ($v, bool $maximize = true) {
        if ($v === null || $v == 0) return 'delta-flat';
        $up = $v > 0;
        return ($up === $maximize) ? 'delta-up' : 'delta-down';
    };

    // ── Bar chart (6 months) ─────────────────────────────────────────
    $chartW = 480; $chartH = 160; $padX = 30; $padY = 20;
    $vals   = array_map(fn ($r) => (float) $r['total'], $series);
    $maxV   = !empty($vals) ? max($vals) : 0;
    if ($maxV <= 0) { $maxV = 1; }
    $barCount = count($series);
    $availW   = $chartW - 2 * $padX;
    $barW     = $barCount > 0 ? ($availW / $barCount) * 0.65 : 0;
    $stepX    = $barCount > 0 ? $availW / max($barCount, 1) : 0;

    // ── Pie geometry — fallback to <circle> when a slice is 360°.  ───
    $pieRadius = 60; $pieCx = 70; $pieCy = 70;
    $pieColors = ['#3B82F6', '#F59E0B'];
    $totalPie = array_sum(array_map(fn ($b) => (float) $b['amount'], $split));
    $pieSlices = [];
    $accAngle = -90;
    foreach ($split as $i => $b) {
        if ($totalPie <= 0) break;
        $sweep = ((float) $b['amount'] / $totalPie) * 360;
        if ($sweep <= 0) continue;
        $isFull = $sweep >= 359.999;
        if ($isFull) {
            $path = null;
        } else {
            $r1 = deg2rad($accAngle);
            $r2 = deg2rad($accAngle + $sweep);
            $x1 = $pieCx + $pieRadius * cos($r1); $y1 = $pieCy + $pieRadius * sin($r1);
            $x2 = $pieCx + $pieRadius * cos($r2); $y2 = $pieCy + $pieRadius * sin($r2);
            $large = $sweep > 180 ? 1 : 0;
            $path = sprintf('M %s %s L %.2f %.2f A %s %s 0 %d 1 %.2f %.2f Z', $pieCx, $pieCy, $x1, $y1, $pieRadius, $pieRadius, $large, $x2, $y2);
        }
        $pieSlices[] = [
            'path'   => $path,
            'color'  => $pieColors[$i % count($pieColors)],
            'label'  => $b['label'],
            'amount' => $b['amount'],
            'pct'    => $b['percent'],
        ];
        $accAngle += $sweep;
    }
@endphp

@section('content')
    <div class="header-band">
        <div class="eyebrow">DADYCAR FLEET MANAGER</div>
        <h1 class="title">{{ $meta['title'] }}</h1>
        <div class="meta">
            <span class="badge">Maintenance</span>
            <span class="badge">{{ $meta['code'] }}</span>
            Période : {{ $meta['period']['label'] }} · {{ $meta['site_label'] }} ·
            {{ $meta['total_vehicles'] }} véhicules ·
            Généré le {{ $meta['generated_at']->locale('fr')->isoFormat('D MMMM YYYY') }}
        </div>
    </div>

    <h3 class="section-title">Indicateurs de coûts</h3>
    <div class="kpi-grid">
        <div class="kpi-row">
            <div class="kpi-card">
                <div class="kpi-label">Coût total maintenance</div>
                <div class="kpi-value">{{ $fmtNum($kpis['total_cost']['value']) }}<span class="kpi-unit">{{ $kpis['total_cost']['unit'] }}</span></div>
                @if ($kpis['total_cost']['delta'] !== null)
                    <div class="kpi-delta {{ $deltaClass($kpis['total_cost']['delta'], false) }}">
                        {{ $fmtDelta($kpis['total_cost']['delta']) }} {{ $kpis['total_cost']['delta_label'] }}
                    </div>
                @else
                    <div class="kpi-delta delta-flat">{{ $kpis['total_cost']['delta_label'] }}</div>
                @endif
            </div>
            <div class="kpi-card">
                <div class="kpi-label">Coût moyen / véhicule</div>
                <div class="kpi-value">{{ $fmtNum($kpis['avg_per_vehicle']['value']) }}<span class="kpi-unit">{{ $kpis['avg_per_vehicle']['unit'] }}</span></div>
                @if ($kpis['avg_per_vehicle']['delta'] !== null)
                    <div class="kpi-delta {{ $deltaClass($kpis['avg_per_vehicle']['delta'], false) }}">
                        {{ $fmtDelta($kpis['avg_per_vehicle']['delta']) }} {{ $kpis['avg_per_vehicle']['delta_label'] }}
                    </div>
                @else
                    <div class="kpi-delta delta-flat">{{ $kpis['avg_per_vehicle']['delta_label'] }}</div>
                @endif
            </div>
            <div class="kpi-card">
                <div class="kpi-label">Interne / externe</div>
                <div class="kpi-value">{{ $kpis['internal_external']['value'] ?? '—' }}<span class="kpi-unit">{{ $kpis['internal_external']['unit'] }}</span></div>
                <div class="kpi-delta delta-flat">{{ $kpis['internal_external']['delta_label'] }}</div>
            </div>
            <div class="kpi-card">
                <div class="kpi-label">Évolution mensuelle</div>
                <div class="kpi-value">{{ $fmtDelta($kpis['monthly_evolution']['value']) ?? '—' }}</div>
                <div class="kpi-delta delta-flat">{{ $kpis['monthly_evolution']['delta_label'] }}</div>
            </div>
        </div>
    </div>

    <h3 class="section-title">Coûts mensuels (6 mois)</h3>
    @if ($maxV > 0)
        <svg width="{{ $chartW }}" height="{{ $chartH }}" viewBox="0 0 {{ $chartW }} {{ $chartH }}" xmlns="http://www.w3.org/2000/svg" style="background: #F9FAFB; border: 1pt solid #E5E7EB; border-radius: 4pt;">
            <line x1="{{ $padX }}" y1="{{ $chartH - $padY }}" x2="{{ $chartW - $padX }}" y2="{{ $chartH - $padY }}" stroke="#D1D5DB" stroke-width="0.5"/>
            @foreach ($series as $i => $r)
                @php
                    $h = ($maxV > 0) ? (($r['total'] / $maxV) * ($chartH - 2 * $padY)) : 0;
                    $cx = $padX + $i * $stepX + $stepX / 2;
                    $bx = $cx - $barW / 2;
                    $by = $chartH - $padY - $h;
                @endphp
                <rect x="{{ $bx }}" y="{{ $by }}" width="{{ $barW }}" height="{{ $h }}" fill="#3B82F6" />
                <text x="{{ $cx }}" y="{{ $chartH - $padY + 12 }}" font-size="8" text-anchor="middle" fill="#6B7280">{{ $r['label'] }}</text>
                <text x="{{ $cx }}" y="{{ $by - 3 }}" font-size="7" text-anchor="middle" fill="#374151">{{ number_format($r['total'], 0, ',', ' ') }}</text>
            @endforeach
        </svg>
    @else
        <p style="color:#6B7280; font-style: italic;">Aucune dépense de maintenance sur la période.</p>
    @endif

    <div class="two-col" style="margin-top: 12pt;">
        <div class="col">
            <h3 class="section-title">Répartition interne / externe</h3>
            @if (!empty($pieSlices) && $totalPie > 0)
                <table style="width: 100%; border-collapse: collapse;">
                    <tr>
                        <td style="vertical-align: middle; width: 150pt; padding-right: 8pt;">
                            <svg width="140" height="140" viewBox="0 0 140 140" xmlns="http://www.w3.org/2000/svg">
                                @foreach ($pieSlices as $s)
                                    @if ($s['path'] === null)
                                        <circle cx="{{ $pieCx }}" cy="{{ $pieCy }}" r="{{ $pieRadius }}" fill="{{ $s['color'] }}" stroke="#FFF" stroke-width="0.8"/>
                                    @else
                                        <path d="{{ $s['path'] }}" fill="{{ $s['color'] }}" stroke="#FFF" stroke-width="0.8"/>
                                    @endif
                                @endforeach
                            </svg>
                        </td>
                        <td style="vertical-align: middle;">
                            @foreach ($pieSlices as $s)
                                <div style="font-size: 8.5pt; padding: 1pt 0;">
                                    <span style="display:inline-block;width:7pt;height:7pt;background:{{ $s['color'] }};border-radius:1pt;margin-right:5pt;"></span>
                                    <strong>{{ $s['label'] }}</strong> — {{ number_format($s['amount'], 0, ',', ' ') }} € ({{ number_format($s['pct'], 1, ',', ' ') }} %)
                                </div>
                            @endforeach
                            <p style="font-size: 7.5pt; color: #9CA3AF; margin-top: 4pt;">
                                Approximation : interne = sans <em>vendor_id</em>, externe = avec <em>vendor_id</em>.
                            </p>
                        </td>
                    </tr>
                </table>
            @else
                <p style="color:#6B7280; font-style: italic;">Pas de données pour la répartition.</p>
            @endif
        </div>
        <div class="col">
            <h3 class="section-title">Top 10 véhicules par coût</h3>
            @if (!empty($top))
                <table class="data">
                    <thead>
                        <tr>
                            <th>Immat.</th>
                            <th>Modèle</th>
                            <th class="num">OT</th>
                            <th class="num">Coût (€)</th>
                            <th class="num">Part</th>
                        </tr>
                    </thead>
                    <tbody>
                        @foreach ($top as $r)
                            <tr>
                                <td>{{ $r['plate'] }}</td>
                                <td>{{ $r['model'] }}</td>
                                <td class="num">{{ $r['ops'] }}</td>
                                <td class="num">{{ number_format($r['total'], 0, ',', ' ') }}</td>
                                <td class="num">{{ number_format($r['share'], 1, ',', ' ') }} %</td>
                            </tr>
                        @endforeach
                    </tbody>
                </table>
            @else
                <p style="color:#6B7280; font-style: italic;">Aucun véhicule avec dépenses de maintenance sur la période.</p>
            @endif
        </div>
    </div>
@endsection