@extends('reports.pdf.layout')

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

@php
    $meta   = $data['meta'];
    $kpis   = $data['kpis'];
    $top5   = $data['top5'];
    $energy = $data['tco_per_energy'];
    $series = $data['monthly_series'];

    $fmtNum = function ($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';
    };

    // Per-energy bar geometry — 3 vertical bars.
    $barW = 320; $barH = 130; $barPadX = 30; $barPadY = 18;
    $barLabels = ['Thermique', 'Hybride', 'Électrique'];
    $barValues = [(float) ($energy['thermique'] ?? 0), (float) ($energy['hybride'] ?? 0), (float) ($energy['electrique'] ?? 0)];
    $barColors = ['#3B82F6', '#F59E0B', '#10B981'];
    $barMax    = max($barValues + [1]);
    $barCount  = count($barLabels);
    $barSlot   = ($barW - 2 * $barPadX) / $barCount;
    $barWidth  = $barSlot * 0.55;

    // Line chart geometry — TCO per vehicle.
    $chartW = 480; $chartH = 140; $padX = 30; $padY = 18;
    $values = array_filter(array_map(fn ($r) => $r['tco_per_vehicle'], $series), fn ($v) => $v !== null);
    $minV = !empty($values) ? min($values) : 0;
    $maxV = !empty($values) ? max($values) : 1;
    if ($minV === $maxV) { $maxV = $minV + 1; }
    $stepX = count($series) > 1 ? ($chartW - 2 * $padX) / (count($series) - 1) : 0;
    $points = [];
    foreach ($series as $i => $r) {
        if ($r['tco_per_vehicle'] === null) continue;
        $x = $padX + $i * $stepX;
        $y = $chartH - $padY - (($r['tco_per_vehicle'] - $minV) / ($maxV - $minV)) * ($chartH - 2 * $padY);
        $points[] = ['x' => $x, 'y' => $y, 'label' => $r['label'], 'value' => $r['tco_per_vehicle']];
    }
    $polyline = implode(' ', array_map(fn ($p) => "{$p['x']},{$p['y']}", $points));
@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">Dépenses & Coûts</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 stratégiques</h3>
    <div class="kpi-grid">
        <div class="kpi-row">
            <div class="kpi-card">
                <div class="kpi-label">TCO moyen / véhicule</div>
                <div class="kpi-value">{{ $fmtNum($kpis['tco_per_vehicle']['value']) }}<span class="kpi-unit">{{ $kpis['tco_per_vehicle']['unit'] }}</span></div>
                @if ($kpis['tco_per_vehicle']['delta'] !== null)
                    <div class="kpi-delta {{ $deltaClass($kpis['tco_per_vehicle']['delta'], false) }}">
                        {{ $fmtDelta($kpis['tco_per_vehicle']['delta']) }} {{ $kpis['tco_per_vehicle']['delta_label'] }}
                    </div>
                @else
                    <div class="kpi-delta delta-flat">{{ $kpis['tco_per_vehicle']['delta_label'] ?? '' }}</div>
                @endif
            </div>
            <div class="kpi-card">
                <div class="kpi-label">Véhicule le plus coûteux</div>
                <div class="kpi-value">{{ $fmtNum($kpis['most_expensive']['value']) }}<span class="kpi-unit">{{ $kpis['most_expensive']['unit'] }}</span></div>
                <div class="kpi-delta delta-flat">{{ $kpis['most_expensive']['delta_label'] }}</div>
            </div>
            <div class="kpi-card">
                <div class="kpi-label">Électrique vs Thermique</div>
                <div class="kpi-value">{{ $fmtNum($kpis['ev_vs_ice']['value']) }}<span class="kpi-unit">{{ $kpis['ev_vs_ice']['unit'] }}</span></div>
                <div class="kpi-delta delta-flat">{{ $kpis['ev_vs_ice']['delta_label'] }}</div>
            </div>
            <div class="kpi-card">
                <div class="kpi-label">Coût total parc</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>
    </div>

    <div class="two-col" style="margin-top: 12pt;">
        <div class="col">
            <h3 class="section-title">TCO détaillé par véhicule (Top 5)</h3>
            @if (!empty($top5))
                <table class="data">
                    <tr>
                        <th>Véhicule</th>
                        <th class="num">Loyer</th>
                        <th class="num">Carb.</th>
                        <th class="num">Maint.</th>
                        <th class="num">Assur.</th>
                        <th class="num">Amendes</th>
                        <th class="num">Total</th>
                    </tr>
                    @foreach ($top5 as $r)
                        <tr>
                            <td>{{ $r['vehicle'] }}</td>
                            <td class="num">{{ $fmtNum($r['rent'], '€') }}</td>
                            <td class="num">{{ $fmtNum($r['fuel'], '€') }}</td>
                            <td class="num">{{ $fmtNum($r['maintenance'], '€') }}</td>
                            <td class="num">{{ $fmtNum($r['insurance'], '€') }}</td>
                            <td class="num">{{ $fmtNum($r['fines'], '€') }}</td>
                            <td class="num"><strong>{{ $fmtNum($r['total'], '€') }}</strong></td>
                        </tr>
                    @endforeach
                </table>
            @else
                <p style="color:#6B7280; font-style: italic;">Aucune dépense pour les véhicules en scope.</p>
            @endif
        </div>
        <div class="col">
            <h3 class="section-title">TCO moyen par énergie</h3>
            @if (array_sum($barValues) > 0)
                <svg width="{{ $barW }}" height="{{ $barH }}" viewBox="0 0 {{ $barW }} {{ $barH }}" xmlns="http://www.w3.org/2000/svg" style="background: #F9FAFB; border: 1pt solid #E5E7EB; border-radius: 4pt;">
                    <line x1="{{ $barPadX }}" y1="{{ $barH - $barPadY }}" x2="{{ $barW - $barPadX }}" y2="{{ $barH - $barPadY }}" stroke="#D1D5DB" stroke-width="0.5"/>
                    @foreach ($barLabels as $i => $label)
                        @php
                            $h = $barMax > 0 ? (($barValues[$i] / $barMax) * ($barH - 2 * $barPadY)) : 0;
                            $x = $barPadX + $i * $barSlot + ($barSlot - $barWidth) / 2;
                            $y = $barH - $barPadY - $h;
                        @endphp
                        <rect x="{{ $x }}" y="{{ $y }}" width="{{ $barWidth }}" height="{{ $h }}" fill="{{ $barColors[$i] }}" rx="2" />
                        <text x="{{ $x + $barWidth / 2 }}" y="{{ $y - 4 }}" font-size="8" text-anchor="middle" fill="#374151">{{ number_format($barValues[$i], 0, ',', ' ') }} €</text>
                        <text x="{{ $x + $barWidth / 2 }}" y="{{ $barH - $barPadY + 12 }}" font-size="8" text-anchor="middle" fill="#6B7280">{{ $label }}</text>
                    @endforeach
                </svg>
            @else
                <p style="color:#6B7280; font-style: italic;">Pas assez de données par type d'énergie.</p>
            @endif
        </div>
    </div>

    <h3 class="section-title">Évolution TCO (6 mois)</h3>
    @if (!empty($points))
        <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"/>
            <polyline points="{{ $polyline }}" fill="none" stroke="#3B82F6" stroke-width="2" />
            @foreach ($points as $p)
                <circle cx="{{ $p['x'] }}" cy="{{ $p['y'] }}" r="3" fill="#3B82F6" />
                <text x="{{ $p['x'] }}" y="{{ $chartH - $padY + 12 }}" font-size="8" text-anchor="middle" fill="#6B7280">{{ $p['label'] }}</text>
                <text x="{{ $p['x'] }}" y="{{ $p['y'] - 6 }}" font-size="7" text-anchor="middle" fill="#374151">{{ number_format($p['value'], 0, ',', ' ') }}</text>
            @endforeach
        </svg>
    @else
        <p style="color:#6B7280; font-style: italic;">Pas de données de coût pour la période.</p>
    @endif
@endsection