@extends('reports.pdf.layout')

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

@php
    $meta       = $data['meta'];
    $kpis       = $data['kpis_annual'];
    $series     = $data['monthly_series'] ?? [];
    $comparison = $data['comparison']     ?? [];
    $esg        = $data['esg']            ?? null;

    $fmtNum = function ($v, $unit = '') {
        if ($v === null) return '—';
        $s = is_numeric($v) ? number_format((float) $v, 0, ',', ' ') : (string) $v;
        return trim($s . ' ' . $unit);
    };
    $fmtCompactEur = function ($v) {
        if ($v === null) return '—';
        $abs = abs((float) $v);
        if ($abs >= 1_000_000) return number_format($v / 1_000_000, 2, ',', ' ') . ' M€';
        if ($abs >= 1_000)     return number_format($v / 1_000, 0, ',', ' ') . ' k€';
        return number_format($v, 0, ',', ' ') . ' €';
    };
    $fmtDelta = function ($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';
    };

    // ── 12-month dual-axis bar chart (TCO bars left, Sinistres bars right)
    $chartW = 540; $chartH = 220; $padX = 38; $padY = 24;

    $tcos   = array_map(fn ($r) => $r['tco'] ?? 0, $series);
    $claims = array_map(fn ($r) => (int) ($r['claims'] ?? 0), $series);

    $maxL = !empty($tcos)   ? max($tcos)   : 0; if ($maxL == 0) $maxL = 1;
    $maxR = !empty($claims) ? max($claims) : 0; if ($maxR == 0) $maxR = 1;
    $maxL = $maxL * 1.1;
    $maxR = max(1, ceil($maxR * 1.2));

    $count   = max(1, count($series));
    $bandW   = ($chartW - 2 * $padX) / $count;
    $barW    = max(2, ($bandW - 6) / 2);
    $baselineY = $chartH - $padY;
    $usableH = $chartH - 2 * $padY;
@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">Synthèse globale</span>
            <span class="badge">{{ $meta['code'] }}</span>
            Année : {{ $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 annuels</h3>
    <div class="kpi-grid">
        <div class="kpi-row">
            <div class="kpi-card">
                <div class="kpi-label">TCO total annuel</div>
                <div class="kpi-value">{{ $fmtCompactEur($kpis['tco_total']['value']) }}</div>
                @if ($kpis['tco_total']['delta'] !== null)
                    <div class="kpi-delta {{ $deltaClass($kpis['tco_total']['delta'], false) }}">
                        {{ $fmtDelta($kpis['tco_total']['delta']) }} {{ $kpis['tco_total']['delta_label'] }}
                    </div>
                @else
                    <div class="kpi-delta delta-flat">{{ $kpis['tco_total']['delta_label'] }}</div>
                @endif
            </div>
            <div class="kpi-card">
                <div class="kpi-label">TCO moy / véh</div>
                <div class="kpi-value">{{ $fmtNum($kpis['tco_per_vehicle']['value']) }}<span class="kpi-unit">€</span></div>
                <div class="kpi-delta delta-flat">{{ $kpis['tco_per_vehicle']['delta_label'] }}</div>
            </div>
            <div class="kpi-card">
                <div class="kpi-label">Économies réalisées</div>
                <div class="kpi-value">{{ $fmtCompactEur($kpis['savings']['value']) }}</div>
                <div class="kpi-delta delta-flat">{{ $kpis['savings']['delta_label'] }}</div>
            </div>
            <div class="kpi-card">
                <div class="kpi-label">Sinistres année</div>
                <div class="kpi-value">{{ $fmtNum($kpis['claims_year']['value']) }}</div>
                @php $cd = $kpis['claims_year']['delta']; @endphp
                @if ($cd !== null && $cd !== 0)
                    <div class="kpi-delta {{ $cd < 0 ? 'delta-up' : 'delta-down' }}">
                        {{ $cd > 0 ? '+' : '' }}{{ $cd }} · {{ $kpis['claims_year']['delta_label'] }}
                    </div>
                @else
                    <div class="kpi-delta delta-flat">{{ $kpis['claims_year']['delta_label'] }}</div>
                @endif
            </div>
        </div>
    </div>

    <h3 class="section-title">Évolution annuelle du TCO et des sinistres ({{ $meta['period']['label'] }})</h3>
    @if (!empty($series))
        <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;">
            {{-- baseline --}}
            <line x1="{{ $padX }}" y1="{{ $baselineY }}" x2="{{ $chartW - $padX }}" y2="{{ $baselineY }}" stroke="#D1D5DB" stroke-width="0.5" />
            {{-- left axis labels (€) --}}
            <text x="4" y="{{ $padY + 4 }}" font-size="7" fill="#6B7280">€ {{ number_format($maxL, 0, ',', ' ') }}</text>
            <text x="4" y="{{ $baselineY }}" font-size="7" fill="#6B7280">€ 0</text>
            {{-- right axis labels (claims) --}}
            <text x="{{ $chartW - 26 }}" y="{{ $padY + 4 }}" font-size="7" fill="#6B7280">{{ (int) $maxR }}</text>
            <text x="{{ $chartW - 26 }}" y="{{ $baselineY }}" font-size="7" fill="#6B7280">0</text>

            @foreach ($series as $i => $r)
                @php
                    $bandX = $padX + $i * $bandW;
                    $tcoVal    = $r['tco']    ?? 0;
                    $claimsVal = $r['claims'] ?? 0;
                    $tcoH    = $maxL > 0 ? ($tcoVal    / $maxL) * $usableH : 0;
                    $claimsH = $maxR > 0 ? ($claimsVal / $maxR) * $usableH : 0;
                    $tcoX    = $bandX + ($bandW - 2 * $barW - 2) / 2;
                    $claimsX = $tcoX + $barW + 2;
                @endphp
                <rect x="{{ $tcoX }}"    y="{{ $baselineY - $tcoH }}"    width="{{ $barW }}" height="{{ $tcoH }}"    fill="#3B82F6" rx="1" />
                <rect x="{{ $claimsX }}" y="{{ $baselineY - $claimsH }}" width="{{ $barW }}" height="{{ $claimsH }}" fill="#EF4444" rx="1" />
                <text x="{{ $bandX + $bandW / 2 }}" y="{{ $baselineY + 14 }}" font-size="7" text-anchor="middle" fill="#6B7280">{{ $r['label'] }}</text>
            @endforeach

            {{-- legend --}}
            <rect x="{{ $padX }}" y="6" width="8" height="8" fill="#3B82F6" rx="1" />
            <text x="{{ $padX + 12 }}" y="13" font-size="8" fill="#374151">TCO (€)</text>
            <rect x="{{ $padX + 90 }}" y="6" width="8" height="8" fill="#EF4444" rx="1" />
            <text x="{{ $padX + 102 }}" y="13" font-size="8" fill="#374151">Sinistres</text>
        </svg>
    @else
        <p style="color:#6B7280; font-style: italic;">Pas de données mensuelles pour l'année.</p>
    @endif

    <h3 class="section-title">Analyse financière — Comparaison N vs N-1</h3>
    @if (!empty($comparison))
        <table class="data">
            <thead>
                <tr>
                    <th>Poste de coût</th>
                    <th class="num">{{ $meta['year'] - 1 }}</th>
                    <th class="num">{{ $meta['year'] }}</th>
                    <th class="num">Évolution</th>
                    <th style="text-align: center;">Tendance</th>
                </tr>
            </thead>
            <tbody>
                @foreach ($comparison as $c)
                    @php
                        $dir  = $c['trend']['direction'] ?? 'flat';
                        $tone = $c['trend']['tone']      ?? 'neutral';
                        $arrow = $dir === 'up' ? '▲' : ($dir === 'down' ? '▼' : '–');
                        $color = $tone === 'success' ? '#10B981' : ($tone === 'danger' ? '#EF4444' : '#6B7280');
                    @endphp
                    <tr>
                        <td>{{ $c['category'] }}</td>
                        <td class="num">{{ $fmtCompactEur($c['prev']) }}</td>
                        <td class="num">{{ $fmtCompactEur($c['curr']) }}</td>
                        <td class="num" style="color: {{ $color }}; font-weight: 600;">
                            {{ $fmtDelta($c['change']) ?? '—' }}
                        </td>
                        <td style="text-align: center; color: {{ $color }}; font-weight: 700;">{{ $arrow }}</td>
                    </tr>
                @endforeach
            </tbody>
        </table>
    @else
        <p style="color:#6B7280; font-style: italic;">Pas de comparaison disponible (aucune dépense N-1).</p>
    @endif

    @if ($esg && !empty($esg['items']))
        <div style="margin-top: 14pt; background: #ECFDF5; border: 1pt solid #A7F3D0; border-radius: 6pt; padding: 12pt 14pt;">
            <div style="font-size: 11pt; font-weight: 600; color: #065F46; margin-bottom: 6pt;">
                {{ $esg['title'] }}
            </div>
            <table style="width: 100%; border-collapse: collapse;">
                <tr>
                    @foreach ($esg['items'] as $item)
                        <td style="vertical-align: top; padding: 4pt 8pt 4pt 0; width: {{ floor(100 / count($esg['items'])) }}%;">
                            <div style="font-size: 8pt; color: #047857; text-transform: uppercase; letter-spacing: 0.06em;">{{ $item['label'] }}</div>
                            <div style="font-size: 10pt; color: #065F46; font-weight: 600; margin-top: 2pt;">{{ $item['value'] }}</div>
                        </td>
                    @endforeach
                </tr>
            </table>
        </div>
    @endif
@endsection