@php
    use Illuminate\Support\Carbon;

    $eur = fn ($n) => '€'.number_format((float) $n, 0);
    $eur2 = fn ($n) => '€'.number_format((float) $n, 2);
    $num = fn ($n) => number_format((float) $n);
    $pct = fn ($n) => number_format((float) $n * 100, 1).'%';

    $d = $analysis['donations'];
    $p = $analysis['profit'];
    $vw = $analysis['vouchers'];
    $dist = $analysis['distribution'];
    $league = $analysis['league'];
    $ret = $analysis['retention'];
    $tax = $analysis['tax_relief'];

    // Standard tier = total − Platinum. Derived here so the panel renders against any
    // snapshot version (older snapshots predate the standard_* keys in the payload).
    $stdIssued = $vw['standard_issued'] ?? (($vw['issued'] ?? 0) - ($vw['platinum_issued'] ?? 0));
    $stdLiability = $vw['standard_liability'] ?? (($vw['liability'] ?? 0) - ($vw['platinum_liability'] ?? 0));

    // Chart row builders from the payload.
    $dow = collect($d['by_dow'])->map(fn ($r) => ['label' => $r['label'], 'value' => $r['sum'], 'display' => $eur($r['sum']).' · '.$num($r['count']).' gifts', 'x' => $r['label']])->all();
    $mon = collect($d['by_month'])->map(fn ($r) => ['label' => $r['label'], 'value' => $r['sum'], 'display' => $eur($r['sum']).' · '.$num($r['count']).' gifts', 'x' => $r['label']])->all();
    $hour = collect($d['by_hour'])->map(fn ($r) => ['label' => $r['label'].':00', 'value' => $r['count'], 'display' => $num($r['count']).' gifts · '.$eur($r['sum']), 'x' => ((int) $r['label']) % 3 === 0 ? $r['label'] : ''])->all();
    $sizes = collect($d['sizes'])->map(fn ($count, $label) => ['label' => $label, 'value' => $count, 'display' => $num($count).' gifts', 'x' => $label])->values()->all();
    $bands = collect($dist['bands'])->map(fn ($count, $label) => ['label' => $label, 'value' => $count, 'display' => $num($count).' fundraisers', 'x' => $label])->values()->all();
    $trendSum = collect($d['trend'])->map(fn ($r) => ['label' => $r['label'], 'value' => $r['sum'], 'display' => $eur($r['sum']).' · '.$num($r['count']).' gifts', 'x' => $r['label']])->all();
    $trendAvg = collect($d['trend'])->map(fn ($r) => ['label' => $r['label'], 'value' => $r['average'], 'display' => $eur($r['average']).' avg · '.$num($r['count']).' gifts', 'x' => $r['label']])->all();
@endphp

<x-admin.layout :title="$title" active="donations">

    <div class="view-head">
        <div>
            <x-admin.eyebrow icon="fa-light fa-chart-mixed">Financial analysis</x-admin.eyebrow>
            <h2>{{ $title }}</h2>
            <p class="lede">
                All fundraisers · the charity's donation &amp; voucher position
                @if ($computedAt) · snapshot {{ Carbon::parse($computedAt)->diffForHumans() }} @else · live @endif
            </p>
        </div>
        <x-admin.btn variant="ghost" sm icon="fa-light fa-arrow-left" :href="$backUrl">Back</x-admin.btn>
    </div>

    {{-- Interval selector (calendar windows). --}}
    <x-admin.toolbar style="margin:.2rem 0 1.1rem;">
        <span class="sub" style="font-family:'Quicksand',sans-serif;font-weight:700;letter-spacing:.12em;text-transform:uppercase;font-size:.7rem;margin-right:.2rem;">Timeframe</span>
        @foreach ($analysis['intervals'] as $key => $label)
            <a class="fchip {{ $analysis['interval'] === $key ? 'on' : '' }}" href="{{ $baseUrl }}?interval={{ $key }}">{{ $label }}</a>
        @endforeach
    </x-admin.toolbar>

    {{-- Profit & liability against event cost. --}}
    <x-admin.panel pad style="margin-bottom:1rem;">
        <x-admin.eyebrow icon="fa-light fa-coins">Profit &amp; liability</x-admin.eyebrow>
        <div class="stat-grid" style="margin-top:.9rem;">
            <x-admin.stat-tile icon="fa-light fa-hand-holding-heart" label="Total raised">{{ $eur($p['raised']) }}</x-admin.stat-tile>
            <x-admin.stat-tile icon="fa-light fa-parachute-box" label="Cost realised (redeemed)">{{ $eur($p['realised_cost']) }}</x-admin.stat-tile>
            <x-admin.stat-tile icon="fa-light fa-arrow-trend-up" label="Realised profit">{{ $eur($p['realised_profit']) }}</x-admin.stat-tile>
            <x-admin.stat-tile icon="fa-light fa-scale-unbalanced" label="Outstanding liability">{{ $eur($p['outstanding_liability']) }}</x-admin.stat-tile>
            <x-admin.stat-tile icon="fa-light fa-shield-halved" label="Conservative net">{{ $eur($p['conservative_net']) }}</x-admin.stat-tile>
            <x-admin.stat-tile icon="fa-light fa-percent" label="Cost coverage">{{ $pct($p['coverage_ratio']) }}</x-admin.stat-tile>
        </div>
        <p class="modal-note" style="margin-top:.8rem;">Cost realised = event cost × redeemed vouchers (Platinum priced separately). Outstanding liability = event cost × issued-but-unredeemed (expired vouchers are still honoured, so they stay liable). Conservative net assumes every outstanding voucher is eventually claimed.</p>
    </x-admin.panel>

    {{-- Voucher position (issued vs redeemed vs outstanding). --}}
    <x-admin.panel pad style="margin-bottom:1rem;">
        <x-admin.eyebrow icon="fa-light fa-ticket">Voucher positions <span class="sub">(all tiers)</span></x-admin.eyebrow>
        <div class="stat-grid" style="margin-top:.9rem;">
            <x-admin.stat-tile icon="fa-light fa-ticket" label="Issued (all tiers)">{{ $num($vw['issued']) }}</x-admin.stat-tile>
            <x-admin.stat-tile icon="fa-light fa-circle-check" label="Redeemed">{{ $num($vw['redeemed']) }} <span class="sub">({{ number_format($vw['redemption_rate'] * 100, 0) }}%)</span></x-admin.stat-tile>
            <x-admin.stat-tile icon="fa-light fa-hourglass-half" label="Outstanding">{{ $num($vw['outstanding']) }}</x-admin.stat-tile>
            <x-admin.stat-tile icon="fa-light fa-calendar-check" label="In-date">{{ $num($vw['outstanding_indate']) }}</x-admin.stat-tile>
            <x-admin.stat-tile icon="fa-light fa-calendar-xmark" label="Expired (still honoured)">{{ $num($vw['outstanding_expired']) }}</x-admin.stat-tile>
            <x-admin.stat-tile icon="fa-light fa-sack-xmark" label="Liability (all tiers)">{{ $eur($vw['liability']) }}</x-admin.stat-tile>
        </div>

        {{-- Tier split — these are SUBSETS of the totals above (Standard + Platinum = total). --}}
        <div style="margin-top:1rem;">
            <span class="sub" style="font-family:'Quicksand',sans-serif;font-weight:700;letter-spacing:.12em;text-transform:uppercase;font-size:.7rem;">Of which, by tier</span>
            <div style="overflow-x:auto;margin-top:.6rem;">
                <table class="an-vtable">
                    <thead><tr><th>Tier</th><th>Issued</th><th>Liability</th></tr></thead>
                    <tbody>
                        <tr><td><strong>Standard</strong></td><td>{{ $num($stdIssued) }}</td><td>{{ $eur($stdLiability) }}</td></tr>
                        <tr><td><strong>Platinum</strong></td><td>{{ $num($vw['platinum_issued']) }}</td><td>{{ $eur($vw['platinum_liability']) }}</td></tr>
                        <tr style="border-top:2px solid var(--admin-border,#e5e7eb);font-weight:700;"><td>Total</td><td>{{ $num($vw['issued']) }}</td><td>{{ $eur($vw['liability']) }}</td></tr>
                    </tbody>
                </table>
            </div>
        </div>
        <p class="modal-note" style="margin-top:.8rem;">The headline Issued and Liability figures include both tiers. The tier table is a breakdown of those same totals — Standard + Platinum equals the total row.</p>
    </x-admin.panel>

    {{-- Fundraiser distribution. --}}
    <x-admin.panel pad style="margin-bottom:1rem;">
        <x-admin.eyebrow icon="fa-light fa-people-group">Fundraiser distribution</x-admin.eyebrow>
        <div class="stat-grid" style="margin-top:.9rem;">
            <x-admin.stat-tile icon="fa-light fa-users" label="Active fundraisers">{{ $num($dist['active_fundraisers']) }}</x-admin.stat-tile>
            <x-admin.stat-tile icon="fa-light fa-chart-simple" label="Average raised">{{ $eur($dist['average_raised']) }}</x-admin.stat-tile>
            <x-admin.stat-tile icon="fa-light fa-equals" label="Median raised">{{ $eur($dist['median_raised']) }}</x-admin.stat-tile>
            <x-admin.stat-tile icon="fa-light fa-circle-check" label="Cover event cost">{{ $num($dist['cover_cost']) }} <span class="sub">({{ $pct($dist['cover_cost_rate']) }})</span></x-admin.stat-tile>
            <x-admin.stat-tile icon="fa-light fa-crown" label="Top 10% share">{{ $pct($dist['top10_share']) }}</x-admin.stat-tile>
        </div>
        <div style="margin-top:1rem;">
            <span class="sub" style="font-weight:700;">Fundraisers by amount raised</span>
            <div style="margin-top:.6rem;">@include('admin.analysis._chart', ['rows' => $bands, 'unit' => 'count', 'aria' => 'Fundraisers by amount raised'])</div>
        </div>
    </x-admin.panel>

    {{-- League tables. --}}
    <div class="grid-2" style="gap:1rem;align-items:start;margin-bottom:1rem;">
        <x-admin.panel pad>
            <x-admin.eyebrow icon="fa-light fa-ranking-star">Top fundraisers</x-admin.eyebrow>
            <div style="overflow-x:auto;margin-top:.7rem;">
                <table class="an-vtable">
                    <thead><tr><th>#</th><th>Fundraiser</th><th>Raised</th></tr></thead>
                    <tbody>
                        @forelse ($league['top_fundraisers'] as $i => $row)
                            <tr><td>{{ $i + 1 }}</td><td><strong>{{ $row['name'] }}</strong> <span class="sub">{{ $row['u_ident'] }}</span></td><td>{{ $eur($row['total']) }}</td></tr>
                        @empty
                            <tr><td colspan="3" class="sub" style="text-align:center;padding:1rem 0;">No data in this timeframe.</td></tr>
                        @endforelse
                    </tbody>
                </table>
            </div>
        </x-admin.panel>
        <x-admin.panel pad>
            <x-admin.eyebrow icon="fa-light fa-map-location-dot">Top counties</x-admin.eyebrow>
            <div style="overflow-x:auto;margin-top:.7rem;">
                <table class="an-vtable">
                    <thead><tr><th>#</th><th>County</th><th>Raised</th></tr></thead>
                    <tbody>
                        @forelse ($league['top_counties'] as $i => $row)
                            <tr><td>{{ $i + 1 }}</td><td><strong>{{ $row['county'] }}</strong></td><td>{{ $eur($row['total']) }}</td></tr>
                        @empty
                            <tr><td colspan="3" class="sub" style="text-align:center;padding:1rem 0;">No data in this timeframe.</td></tr>
                        @endforelse
                    </tbody>
                </table>
            </div>
        </x-admin.panel>
    </div>

    {{-- Donor retention + tax relief. --}}
    <div class="grid-2" style="gap:1rem;align-items:start;margin-bottom:1rem;">
        <x-admin.panel pad>
            <x-admin.eyebrow icon="fa-light fa-arrows-rotate">Donor retention</x-admin.eyebrow>
            <div class="stat-grid" style="margin-top:.9rem;">
                <x-admin.stat-tile icon="fa-light fa-users" label="Unique donors">{{ $num($ret['donors']) }}</x-admin.stat-tile>
                <x-admin.stat-tile icon="fa-light fa-repeat" label="Repeat donors">{{ $num($ret['repeat_donors']) }}</x-admin.stat-tile>
                <x-admin.stat-tile icon="fa-light fa-percent" label="Repeat rate">{{ $pct($ret['repeat_rate']) }}</x-admin.stat-tile>
                <x-admin.stat-tile icon="fa-light fa-gift" label="Gifts per donor">{{ number_format($ret['gifts_per_donor'], 2) }}</x-admin.stat-tile>
            </div>
        </x-admin.panel>
        <x-admin.panel pad>
            <x-admin.eyebrow icon="fa-light fa-landmark">Tax relief potential <span class="sub">(CDS)</span></x-admin.eyebrow>
            <div class="stat-grid" style="margin-top:.9rem;">
                <x-admin.stat-tile icon="fa-light fa-user-check" label="Eligible donor-years">{{ $num($tax['eligible_donor_years']) }}</x-admin.stat-tile>
                <x-admin.stat-tile icon="fa-light fa-sack-dollar" label="Eligible amount">{{ $eur($tax['eligible_amount']) }}</x-admin.stat-tile>
                <x-admin.stat-tile icon="fa-light fa-hand-holding-dollar" label="Estimated relief">{{ $eur($tax['estimated_relief']) }}</x-admin.stat-tile>
            </div>
            <p class="modal-note" style="margin-top:.8rem;">Charitable Donation Scheme: a donor giving ≥ {{ $eur($tax['threshold']) }} in a tax year lets the charity reclaim, grossed up at 31%. Estimate only — assumes eligible donors complete a CHY3/CHY4.</p>
        </x-admin.panel>
    </div>

    {{-- Donation KPIs (selected timeframe). --}}
    <div class="stat-grid" style="margin-bottom:1rem;">
        <x-admin.stat-tile icon="fa-light fa-hand-holding-heart" label="Donations">{{ $num($d['count']) }}</x-admin.stat-tile>
        <x-admin.stat-tile icon="fa-light fa-sack-dollar" label="Total raised">{{ $eur($d['total']) }}</x-admin.stat-tile>
        <x-admin.stat-tile icon="fa-light fa-chart-simple" label="Average gift">{{ $eur2($d['average']) }}</x-admin.stat-tile>
        <x-admin.stat-tile icon="fa-light fa-equals" label="Median gift">{{ $eur2($d['median']) }}</x-admin.stat-tile>
        <x-admin.stat-tile icon="fa-light fa-arrow-down" label="Smallest">{{ $eur2($d['min']) }}</x-admin.stat-tile>
        <x-admin.stat-tile icon="fa-light fa-arrow-up" label="Largest">{{ $eur2($d['max']) }}</x-admin.stat-tile>
        <x-admin.stat-tile icon="fa-light fa-users" label="Unique donors">{{ $num($d['donors']) }}</x-admin.stat-tile>
        <x-admin.stat-tile icon="fa-light fa-user-secret" label="Anonymous">{{ $num($d['anonymous']) }}</x-admin.stat-tile>
    </div>

    @if ($d['count'] === 0)
        <x-admin.panel pad><p class="sub" style="text-align:center;padding:1.5rem 0;">No donations in this timeframe.</p></x-admin.panel>
    @else
        <div class="grid-2" style="gap:1rem;align-items:start;">
            <x-admin.panel pad><x-admin.eyebrow icon="fa-light fa-calendar-week">By day of week</x-admin.eyebrow><div style="margin-top:.8rem;">@include('admin.analysis._chart', ['rows' => $dow, 'unit' => 'eur', 'aria' => 'Donations by day of week'])</div></x-admin.panel>
            <x-admin.panel pad><x-admin.eyebrow icon="fa-light fa-clock">By hour of day <span class="sub">(Dublin)</span></x-admin.eyebrow><div style="margin-top:.8rem;">@include('admin.analysis._chart', ['rows' => $hour, 'unit' => 'count', 'aria' => 'Donations by hour of day'])</div></x-admin.panel>
            <x-admin.panel pad><x-admin.eyebrow icon="fa-light fa-calendar">By month of year</x-admin.eyebrow><div style="margin-top:.8rem;">@include('admin.analysis._chart', ['rows' => $mon, 'unit' => 'eur', 'aria' => 'Donations by month of year'])</div></x-admin.panel>
            <x-admin.panel pad><x-admin.eyebrow icon="fa-light fa-layer-group">Gift-size distribution</x-admin.eyebrow><div style="margin-top:.8rem;">@include('admin.analysis._chart', ['rows' => $sizes, 'unit' => 'count', 'aria' => 'Donations by size band'])</div></x-admin.panel>
            <x-admin.panel pad><x-admin.eyebrow icon="fa-light fa-arrow-trend-up">Total raised over time</x-admin.eyebrow><div style="margin-top:.8rem;">@include('admin.analysis._chart', ['rows' => $trendSum, 'unit' => 'eur', 'aria' => 'Total raised by month'])</div></x-admin.panel>
            <x-admin.panel pad><x-admin.eyebrow icon="fa-light fa-chart-line">Average gift over time</x-admin.eyebrow><div style="margin-top:.8rem;">@include('admin.analysis._chart', ['rows' => $trendAvg, 'unit' => 'eur', 'aria' => 'Average gift by month'])</div></x-admin.panel>
        </div>
    @endif

    @push('scripts')
        @vite('resources/js/analysis.js')
    @endpush

</x-admin.layout>