@extends('reports.pdf.layout')

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

@php
    $meta      = $data['meta'];
    $kpis      = $data['kpis'];
    $perEnergy = $data['per_energy'];
    $curve     = $data['curve'];
    $action    = $data['action'];

    $fmtNum = function ($v, $unit = '') {
        if ($v === null) return '—';
        $s = is_numeric($v) ? number_format((float) $v, 0, ',', ' ') : (string) $v;
        return trim($s . ' ' . $unit);
    };

    $components = [
        'fuel'         => ['label' => 'Carburant',     'color' => '#3B82F6'],
        'maintenance'  => ['label' => 'Maintenance',   'color' => '#F59E0B'],
        'insurance'    => ['label' => 'Assurance',     'color' => '#8B5CF6'],
        'depreciation' => ['label' => 'Amortissement', 'color' => '#10B981'],
    ];

    // Stacked bar geometry — vertical stacked bars per energy bucket.
    $barW = 320; $barH = 180; $barPadX = 30; $barPadY = 22;
    $energyMax = 0;
    foreach ($perEnergy as $e) {
        $stackTotal = array_sum($e['components'] ?? []);
        $energyMax = max($energyMax, $stackTotal);
    }
    if ($energyMax <= 0) $energyMax = 50;
    $barCount = count($perEnergy);
    $barSlot  = $barCount > 0 ? ($barW - 2 * $barPadX) / $barCount : 0;
    $barWidth = $barSlot * 0.55;

    // Breakeven curve.
    $chartW = 480; $chartH = 170; $padX = 30; $padY = 22;
    $allValues = array_merge($curve['diesel'] ?? [], $curve['electric'] ?? []);
    $allValues = array_filter($allValues, fn ($v) => $v !== null);
    $minV = !empty($allValues) ? min($allValues) : 0;
    $maxV = !empty($allValues) ? max($allValues) : 1;
    if ($minV === $maxV) { $maxV = $minV + 1; }
    $stepX = count($curve['labels']) > 1 ? ($chartW - 2 * $padX) / (count($curve['labels']) - 1) : 0;
    $polylines = [];
    foreach ([['data' => $curve['diesel'],   'color' => '#6B7280', 'label' => 'Diesel'],
              ['data' => $curve['electric'], 'color' => '#10B981', 'label' => 'Électrique']] as $s) {
        $pts = [];
        foreach ($s['data'] as $i => $v) {
            if ($v === null) continue;
            $x = $padX + $i * $stepX;
            $y = $chartH - $padY - (($v - $minV) / ($maxV - $minV)) * ($chartH - 2 * $padY);
            $pts[] = "{$x},{$y}";
        }
        $polylines[] = ['color' => $s['color'], 'label' => $s['label'], 'points' => implode(' ', $pts)];
    }

    $toneBg    = ['success' => '#D1FAE5', 'warning' => '#FEF3C7', 'danger' => '#FEE2E2', 'neutral' => '#F3F4F6'];
    $toneColor = ['success' => '#065F46', 'warning' => '#92400E', 'danger' => '#991B1B', 'neutral' => '#374151'];
    $aTone = $action['tone'] ?? 'neutral';
@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">Carburant & Énergie</span>
            <span class="badge">{{ $meta['code'] }}</span>
            Période : {{ $meta['period']['label'] }} · {{ $meta['site_label'] }} ·
            Généré le {{ $meta['generated_at']->locale('fr')->isoFormat('D MMMM YYYY') }}
        </div>
    </div>

    <h3 class="section-title">Indicateurs clés</h3>
    <div class="kpi-grid">
        <div class="kpi-row">
            <div class="kpi-card">
                <div class="kpi-label">Électrique vs Diesel</div>
                <div class="kpi-value">{{ $kpis['ev_vs_diesel']['value'] !== null ? ($kpis['ev_vs_diesel']['value'] >= 0 ? '+' : '') . $kpis['ev_vs_diesel']['value'] : '—' }}<span class="kpi-unit">{{ $kpis['ev_vs_diesel']['unit'] }}</span></div>
                <div class="kpi-delta delta-flat">{{ $kpis['ev_vs_diesel']['delta_label'] }}</div>
            </div>
            <div class="kpi-card">
                <div class="kpi-label">Électrique vs Essence</div>
                <div class="kpi-value">{{ $kpis['ev_vs_essence']['value'] !== null ? ($kpis['ev_vs_essence']['value'] >= 0 ? '+' : '') . $kpis['ev_vs_essence']['value'] : '—' }}<span class="kpi-unit">{{ $kpis['ev_vs_essence']['unit'] }}</span></div>
                <div class="kpi-delta delta-flat">{{ $kpis['ev_vs_essence']['delta_label'] }}</div>
            </div>
            <div class="kpi-card">
                <div class="kpi-label">Seuil rentabilité VE</div>
                <div class="kpi-value">{{ $fmtNum($kpis['breakeven_km']['value']) }}<span class="kpi-unit">{{ $kpis['breakeven_km']['unit'] }}</span></div>
                <div class="kpi-delta delta-flat">{{ $kpis['breakeven_km']['delta_label'] }}</div>
            </div>
            <div class="kpi-card">
                <div class="kpi-label">Économie annuelle / VE</div>
                <div class="kpi-value">{{ $fmtNum($kpis['annual_savings']['value']) }}<span class="kpi-unit">{{ $kpis['annual_savings']['unit'] }}</span></div>
                <div class="kpi-delta delta-flat">{{ $kpis['annual_savings']['delta_label'] }}</div>
            </div>
        </div>
    </div>

    <div class="two-col" style="margin-top: 12pt;">
        <div class="col">
            <h3 class="section-title">Décomposition du coût au km par énergie</h3>
            @if (!empty($perEnergy))
                <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 - $barPadY }}" stroke="#D1D5DB" stroke-width="0.5"/>
                    @foreach ($perEnergy as $i => $e)
                        @php
                            $x = $barPadX + $i * $barSlot + ($barSlot - $barWidth) / 2;
                            $accY = $barH - $barPadY;
                        @endphp
                        @foreach ($components as $compKey => $compMeta)
                            @php
                                $val = (float) ($e['components'][$compKey] ?? 0);
                                $segH = $energyMax > 0 ? ($val / $energyMax) * ($barH - 2 * $barPadY) : 0;
                                $accY -= $segH;
                            @endphp
                            @if ($segH > 0.5)
                                <rect x="{{ $x }}" y="{{ $accY }}" width="{{ $barWidth }}" height="{{ $segH }}" fill="{{ $compMeta['color'] }}" />
                            @endif
                        @endforeach
                        <text x="{{ $x + $barWidth / 2 }}" y="{{ $barH - $barPadY + 12 }}" font-size="8" text-anchor="middle" fill="#6B7280">{{ $e['label'] }}</text>
                        <text x="{{ $x + $barWidth / 2 }}" y="{{ $accY - 4 }}" font-size="8" text-anchor="middle" fill="#374151">{{ $e['cost_per_100km'] !== null ? number_format($e['cost_per_100km'], 1, ',', ' ') . ' €' : '—' }}</text>
                    @endforeach
                </svg>
                <div style="margin-top: 6pt; font-size: 8pt; color: #374151;">
                    @foreach ($components as $compMeta)
                        <span style="display: inline-block; margin-right: 8pt;">
                            <span style="display:inline-block;width:8pt;height:8pt;background:{{ $compMeta['color'] }};border-radius:1pt;margin-right:4pt;vertical-align:middle;"></span>
                            {{ $compMeta['label'] }}
                        </span>
                    @endforeach
                </div>
            @else
                <p style="color:#6B7280; font-style: italic;">Aucune donnée par énergie.</p>
            @endif
        </div>
        <div class="col">
            <h3 class="section-title">Seuil de rentabilité VE vs Diesel (coût cumulé)</h3>
            @if (!empty($polylines))
                <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 - $padY }}" stroke="#D1D5DB" stroke-width="0.5"/>
                    @foreach ($polylines as $pl)
                        <polyline points="{{ $pl['points'] }}" fill="none" stroke="{{ $pl['color'] }}" stroke-width="2" />
                    @endforeach
                    @foreach ($curve['labels'] as $i => $lbl)
                        @php $x = $padX + $i * $stepX; @endphp
                        <text x="{{ $x }}" y="{{ $chartH - $padY + 12 }}" font-size="6.5" text-anchor="middle" fill="#6B7280">{{ $lbl }}</text>
                    @endforeach
                </svg>
                <div style="margin-top: 6pt; font-size: 8pt; color: #374151;">
                    @foreach ($polylines as $pl)
                        <span style="display: inline-block; margin-right: 10pt;">
                            <span style="display:inline-block;width:8pt;height:8pt;background:{{ $pl['color'] }};border-radius:1pt;margin-right:4pt;vertical-align:middle;"></span>
                            {{ $pl['label'] }}
                        </span>
                    @endforeach
                </div>
            @else
                <p style="color:#6B7280; font-style: italic;">Données insuffisantes pour la courbe.</p>
            @endif

            @if (!empty($action['label']))
                <div style="margin-top: 8pt; padding: 8pt; border-radius: 4pt; background: {{ $toneBg[$aTone] ?? $toneBg['neutral'] }}; color: {{ $toneColor[$aTone] ?? $toneColor['neutral'] }}; font-size: 8.5pt;">
                    {{ $action['label'] }}
                </div>
            @endif
        </div>
    </div>
@endsection