{{-- One block of a PACS report format. $mode = 'edit' (inputs) | 'print' (exact layout).
     $b = block, $data = values. Field notation is parsed by App\Support\ReportFormData::field(). --}}
@php
    $F    = fn ($def) => \App\Support\ReportFormData::field($def);
    $edit = $mode === 'edit';
    $val  = fn ($k) => $data[$k] ?? '';
    $show = function ($f) use ($data) {
        $v = $data[$f['key']] ?? '';
        if ($f['type'] === 'date' && $v) { try { return \Carbon\Carbon::parse($v)->format('d/m/Y'); } catch (\Exception $e) { return $v; } }
        return $v;
    };
    $input = function ($f, $extra = '') use ($data) {
        $n = 'f[' . $f['key'] . ']'; $v = e($data[$f['key']] ?? '');
        if ($f['type'] === 'sig') return '<span class="text-muted small fst-italic">(signed on the printed copy)</span>';
        if ($f['type'] === 'ta') return '<textarea name="' . $n . '" rows="2" class="form-control form-control-sm" ' . $extra . '>' . $v . '</textarea>';
        if ($f['type'] === 'date') return '<input type="date" name="' . $n . '" value="' . $v . '" class="form-control form-control-sm" ' . $extra . '>';
        return '<input name="' . $n . '" value="' . $v . '" class="form-control form-control-sm" ' . $extra . '>';
    };
    $ro = $edit && empty($editable) ? 'disabled' : '';
@endphp

@if($b['type'] === 'heading')
    <div class="rf-heading">{{ $b['label'] }}</div>

@elseif($b['type'] === 'lines')
    <div class="rf-lines">
    @foreach($b['fields'] as $def)
        @php $f = $F($def); @endphp
        @if($edit)
            <div class="row g-1 mb-1 align-items-start">
                <label class="col-md-4 col-form-label col-form-label-sm">{{ $f['label'] }}</label>
                <div class="col-md-8">{!! $input($f, $ro) !!}</div>
            </div>
        @else
            <div class="rf-line"><span class="rf-lbl">{{ $f['label'] }}:</span> <span class="rf-val">{{ $f['type'] === 'sig' ? '' : $show($f) }}</span></div>
        @endif
    @endforeach
    </div>

@elseif($b['type'] === 'grid' || $b['type'] === 'rows')
    @php
        $cols  = $b['type'] === 'rows' ? 1 : ($b['cols'] ?? 2);
        $cells = array_map($F, $b['fields']);
        while (count($cells) % $cols) $cells[] = $F('_');
    @endphp
    <table class="table table-bordered table-sm rf-table">
        @if(!empty($b['title']))<tr><th colspan="{{ $cols * 2 }}" class="rf-title">{{ $b['title'] }}</th></tr>@endif
        @foreach(array_chunk($cells, $cols) as $row)
            <tr>
            @foreach($row as $f)
                @if($f['blank'])
                    <td colspan="2"></td>
                @else
                    <th class="rf-th" style="width:{{ $cols === 1 ? 38 : intdiv(100, $cols * 2) }}%">{{ $f['label'] }}</th>
                    <td>@if($edit){!! $input($f, $ro) !!}@else<div class="rf-cell">{{ $f['type'] === 'sig' ? '' : $show($f) }}</div>@endif</td>
                @endif
            @endforeach
            </tr>
        @endforeach
    </table>

@elseif($b['type'] === 'section')
    <div class="rf-section">
        <div class="rf-heading text-start">{{ $b['label'] }}</div>
        @if($edit)
            <textarea name="f[{{ $b['key'] }}]" rows="5" class="form-control form-control-sm" {{ $ro }}>{{ $val($b['key']) }}</textarea>
        @else
            <div class="rf-para">{{ $val($b['key']) }}</div>
        @endif
    </div>

@elseif($b['type'] === 'choice')
    <table class="table table-bordered table-sm rf-table"><tr><td>
        <div class="fw-bold mb-1">{{ $b['label'] }}</div>
        <div class="{{ !empty($b['inline']) ? 'd-flex flex-wrap gap-3' : '' }}">
        @foreach($b['options'] as $ok => $ol)
            @if($edit)
                <div class="form-check {{ !empty($b['inline']) ? 'form-check-inline' : '' }}">
                    <input class="form-check-input" type="radio" name="f[{{ $b['key'] }}]" value="{{ $ok }}" id="c{{ $b['key'] . $ok }}" {{ $val($b['key']) === $ok ? 'checked' : '' }} {{ $ro }}>
                    <label class="form-check-label" for="c{{ $b['key'] . $ok }}">{{ $ok }}. {{ $ol }}</label>
                </div>
            @else
                <div>{{ $ok }}. {{ $ol }} ( {{ $val($b['key']) === $ok ? '✓' : ' ' }} )</div>
            @endif
        @endforeach
        </div>
        @if(!empty($b['reason']))
            <div class="mt-1"><span class="fw-bold">{{ $b['reason'] }}:</span>
                @if($edit)<textarea name="f[{{ $b['key'] }}_reason]" rows="2" class="form-control form-control-sm mt-1" {{ $ro }}>{{ $val($b['key'] . '_reason') }}</textarea>
                @else<span class="rf-para">{{ $val($b['key'] . '_reason') }}</span>@endif
            </div>
        @endif
    </td></tr></table>

@elseif($b['type'] === 'repeat')
    @php
        $rowsData = array_values((array) ($data[$b['key']] ?? []));
        $n = max($b['rows'] ?? 3, count($rowsData) + ($edit ? 1 : 0));
        $cols = $b['columns'];
    @endphp
    <table class="table table-bordered table-sm rf-table" data-repeat="{{ $b['key'] }}">
        <tr><th colspan="{{ count($cols) + (!empty($b['numbered']) ? 1 : 0) }}" class="rf-title">{{ $b['label'] }}</th></tr>
        @if(count($cols) > 1)
            <tr>@if(!empty($b['numbered']))<th style="width:30px"></th>@endif @foreach($cols as $ck => $cl)<th class="rf-th">({{ $cl }})</th>@endforeach</tr>
        @endif
        @for($i = 0; $i < $n; $i++)
            <tr>
                @if(!empty($b['numbered']))<td class="text-center">{{ $i + 1 }}.</td>@endif
                @foreach($cols as $ck => $cl)
                    <td>
                        @if($edit)
                            <input name="f[{{ $b['key'] }}][{{ $i }}][{{ $ck }}]" value="{{ $rowsData[$i][$ck] ?? '' }}" class="form-control form-control-sm" {{ $ro }}>
                        @else
                            <div class="rf-cell">{{ $rowsData[$i][$ck] ?? '' }}</div>
                        @endif
                    </td>
                @endforeach
            </tr>
        @endfor
    </table>
    @if($edit && empty($ro))<button type="button" class="btn btn-link btn-sm p-0 mb-2 rf-addrow" data-key="{{ $b['key'] }}"><i class="fas fa-plus"></i> Add row</button>@endif

@elseif($b['type'] === 'letter')
    @php
        $fields = collect($b['fields'])->map($F)->keyBy('key');
    @endphp
    @if($edit)
        <div class="border rounded p-2 mb-2 bg-light">
            <div class="small text-muted mb-2">{{ $b['text'] }}</div>
            <div class="row g-2">
            @foreach($fields as $f)
                <div class="col-md-4"><label class="form-label small mb-0">{{ $f['label'] }}</label>{!! $input($f, $ro) !!}</div>
            @endforeach
            </div>
        </div>
    @else
        <p class="rf-letter">{!! preg_replace_callback('/\{(\w+)\}/', function ($m) use ($fields, $show) {
            $f = $fields[$m[1]] ?? null;
            $v = $f ? $show($f) : '';
            return '<span class="rf-fill">' . e($v !== '' && $v !== null ? $v : '……………') . '</span>';
        }, e($b['text'])) !!}</p>
    @endif
@endif