{{-- resources/views/agent/files/index.blade.php --}}
@extends('layouts.contentLayoutMaster')
@section('title', 'Files')

@php
    use Illuminate\Support\Facades\Route as Routes;
    use Illuminate\Support\Facades\Storage as Disk;
    use Illuminate\Support\Str;

    // Human-readable size
    function human_size($bytes)
    {
        $bytes = (int) ($bytes ?? 0);
        $units = ['B', 'KB', 'MB', 'GB', 'TB'];
        $i = 0;
        while ($bytes >= 1024 && $i < count($units) - 1) { $bytes /= 1024; $i++; }
        return number_format($bytes, $i ? 1 : 0) . ' ' . $units[$i];
    }

    // Exclude archives/snapshots from this page
    $isArchiveFile = function ($file) {
        $cat = (string) ($file->category ?? '');
        if (str_starts_with($cat, 'archive-') || $cat === 'purchased_archive') return true;
        if (!empty($file->snapshot_json)) return true;
        $notes = (string) ($file->notes ?? '');
        return str_contains($notes, 'purchased_archive');
    };

    // Label for "Document" column
    $docLabelFor = function ($f) {
        return $f->document_type ?? ($f->doc_type ?? ($f->mime ?? ($f->category ?? '—')));
    };

    // Restrict to real file types for filter & upload
    $docTypes = ['pdf','word','excel','csv','image','text','ppt','zip','audio','video','json','xml','html','other'];

    // Archive link (use params if provided by controller)
    $archiveUrl = isset($archParams) ? route('agent.files.archive', $archParams) : route('agent.files.archive');

    // Index URL (for "Clear display")
    $indexUrl = Routes::has('agent.files.index')
        ? route('agent.files.index')
        : (Routes::has('agent.files') ? route('agent.files') : url()->current());

    // Only show rows when filters exist; otherwise leave body blank
    // NOTE: back to a single date range: upload_from / upload_to
    $showResults = request()->filled('title')
        || request()->filled('document_type')
        || request()->filled('upload_from')
        || request()->filled('upload_to')
        || request()->filled('q'); // flexible keyword
@endphp

@section('content')
    <div class="container py-4">

        {{-- Title left / Lead Archives button right --}}
        <div class="d-flex align-items-center justify-content-between mb-3">
            <h4 class="mb-0">Files</h4>
            <a href="{{ $archiveUrl }}" class="btn btn-outline-secondary">Lead Archives</a>
        </div>

        {{-- Flash messages --}}
        @if (session('success'))
          <div class="alert alert-success alert-dismissible fade show mb-3" role="alert">
            {{ session('success') }}
            <button type="button" class="btn-close" data-bs-dismiss="alert" aria-label="Close"></button>
          </div>
        @endif
        @if ($errors->any())
          <div class="alert alert-danger alert-dismissible fade show mb-3" role="alert">
            {{ $errors->first() }}
            <button type="button" class="btn-close" data-bs-dismiss="alert" aria-label="Close"></button>
          </div>
        @endif

        {{-- TOP FILTER BAR (back to a simple date range) --}}
        <form method="GET" class="d-flex align-items-end gap-2 flex-wrap mb-3">
            <div>
                <label class="form-label mb-1 small">Keyword</label>
                <input type="text" name="q" value="{{ request('q') }}" class="form-control form-control-sm"
                       style="width:190px" placeholder="Title, notes, filename…">
            </div>

            <div>
                <label class="form-label mb-1 small">Document Title</label>
                <input type="text" name="title" value="{{ request('title') }}" class="form-control form-control-sm"
                       style="width:170px" placeholder="Title…">
            </div>

            <div>
                <label class="form-label mb-1 small">Document Type</label>
                <select name="document_type" class="form-select form-select-sm" style="width:170px">
                    <option value="">All</option>
                    @foreach ($docTypes as $dt)
                        <option value="{{ $dt }}" @selected(request('document_type') === $dt)>{{ strtoupper($dt) }}</option>
                    @endforeach
                </select>
            </div>

            {{-- DATE RANGE (created_at) --}}
            <div>
                <label class="form-label mb-1 small">Date From</label>
                <input type="date" name="upload_from" value="{{ request('upload_from') }}"
                       class="form-control form-control-sm" style="width:170px">
            </div>
            <div>
                <label class="form-label mb-1 small">Date To</label>
                <input type="date" name="upload_to" value="{{ request('upload_to') }}"
                       class="form-control form-control-sm" style="width:170px">
            </div>

            <div>
                <label class="form-label mb-1 small d-block">&nbsp;</label>
                <button class="btn btn-sm btn-outline-success">Filter</button>
                <a href="{{ $indexUrl }}" class="btn btn-sm btn-outline-secondary">Clear</a>
            </div>
        </form>

        {{-- UPLOAD --}}
        <div class="card mb-3">
            <div class="card-body">
                <form action="{{ route('agent.files.upload') }}" method="POST" enctype="multipart/form-data"
                      class="upload-stack">
                    @csrf

                    <div class="mb-2">
                        <input type="file" name="file" required class="form-control">
                    </div>

                    <div class="mb-2">
                        {{-- You can keep name="doc_type" (controller accepts both doc_type/document_type) --}}
                        <select name="doc_type" class="form-select">
                            <option value="">Document type… (optional)</option>
                            @foreach ($docTypes as $dt)
                                <option value="{{ $dt }}">{{ strtoupper($dt) }}</option>
                            @endforeach
                        </select>
                    </div>

                    <div class="mb-2">
                        <input type="text" name="title" placeholder="Optional title" class="form-control">
                    </div>

                    {{-- Notes (preferred over legacy "info") --}}
                    <div class="mb-3">
                        <textarea name="notes" rows="3" class="form-control" placeholder="Note (optional) — visible in the bottom Notes column"></textarea>
                    </div>

                    <button class="btn btn-primary">Upload</button>
                </form>
            </div>
        </div>

        {{-- FILES TABLE (card always visible; body blank until filters are applied) --}}
        <div class="card">
            <div class="table-responsive">
                <table class="table table-sm align-middle mb-0">
                    <thead class="table-light">
                        <tr>
                            <th style="width:36px">
                                <input class="form-check-input" type="checkbox" id="check-all" title="Select all">
                            </th>
                            <th>Title</th>
                            <th>Document</th>
                            <th>Upload Date</th>
                            <th>Last Modified Date</th>
                            <th>Size</th>
                            <th>Notes</th>
                            <th class="text-end" style="width:160px;">Actions</th>
                        </tr>
                    </thead>
                    <tbody>
                        @if ($showResults)
                            @forelse ($files as $f)
                                @php
                                    $title = $f->title
                                        ?? ($f->name
                                        ?? ($f->original_name
                                        ?? basename($f->path ?? ($f->stored_path ?? 'file'))));

                                    $doc    = $docLabelFor($f);
                                    $size   = $f->size ?? ($f->filesize ?? 0);

                                    // Prefer notes; fall back to legacy info (read-only)
                                    $notes = trim((string) ($f->notes ?? ''));
                                    if ($notes === '' && isset($f->info)) $notes = (string) $f->info;

                                    $path      = $f->stored_path ?? $f->path ?? null;
                                    $publicUrl = $path ? Disk::url($path) : null;

                                    // Build "View" URL and preserve current filters via ?return=...
                                    $hasShow = Routes::has('agent.files.show');
                                    $hasView = Routes::has('agent.files.view');

                                    if ($hasShow) {
                                        $viewUrl = route('agent.files.show', [
                                            'id'     => $f->id ?? $f,
                                            'return' => request()->fullUrl(), // keep filters when returning
                                        ]);
                                    } elseif ($hasView) {
                                        $viewUrl = route('agent.files.view', [
                                            'id'     => $f->id ?? $f,
                                            'return' => request()->fullUrl(),
                                        ]);
                                    } else {
                                        $viewUrl = $publicUrl ?: '#';
                                    }

                                    // Only open a new tab when falling back to a raw public URL
                                    $openInNewTab = (!$hasShow && !$hasView && $publicUrl);

                                    $editUrl = Routes::has('agent.files.edit')
                                        ? route('agent.files.edit', [
                                            'id'     => $f->id ?? $f,
                                            'return' => request()->fullUrl(), // keep current filters when returning
                                        ])
                                        : '#';

                                    $destroyRouteExists = Routes::has('agent.files.destroy');
                                    $destroyUrl = $destroyRouteExists ? route('agent.files.destroy', $f->id ?? $f) : '#';
                                @endphp

                                @if (!$isArchiveFile($f))
                                    <tr>
                                        <td>
                                            <input class="form-check-input row-check" type="checkbox" value="{{ $f->id ?? '' }}">
                                        </td>
                                        <td class="text-nowrap">{{ $title }}</td>
                                        <td class="text-nowrap">{{ is_string($doc) ? strtoupper($doc) : '—' }}</td>
                                        <td class="text-nowrap">{{ optional($f->created_at)->format('Y-m-d H:i') }}</td>
                                        <td class="text-nowrap">{{ optional($f->updated_at)->format('Y-m-d H:i') }}</td>
                                        <td class="text-nowrap">{{ human_size($size) }}</td>
                                        <td class="text-muted" style="max-width:380px;">
                                            {{ $notes !== '' ? Str::limit($notes, 120) : '—' }}
                                        </td>
                                        <td class="text-end">
                                            <div class="dropdown">
                                                <button class="btn btn-sm btn-outline-primary dropdown-toggle" type="button"
                                                        data-bs-toggle="dropdown" aria-expanded="false">
                                                    Actions
                                                </button>
                                                <ul class="dropdown-menu dropdown-menu-end">
                                                    <li>
                                                        <a class="dropdown-item @if($viewUrl === '#') disabled @endif"
                                                           href="{{ $viewUrl }}" @if($openInNewTab) target="_blank" @endif>
                                                            View
                                                        </a>
                                                    </li>
                                                    <li>
                                                        <a class="dropdown-item @if ($editUrl === '#') disabled @endif"
                                                           href="{{ $editUrl }}">
                                                            Edit
                                                        </a>
                                                    </li>
                                                    <li>
                                                        <a class="dropdown-item" href="{{ $indexUrl }}">
                                                            Clear display
                                                        </a>
                                                    </li>
                                                    <li><hr class="dropdown-divider"></li>
                                                    <li>
                                                        @if ($destroyRouteExists)
                                                            <form method="POST" action="{{ $destroyUrl }}" onsubmit="return confirm('Delete this document? This cannot be undone.');">
                                                                @csrf
                                                                @method('DELETE')
                                                                <button type="submit" class="dropdown-item text-danger">Delete</button>
                                                            </form>
                                                        @else
                                                            <span class="dropdown-item disabled">Delete</span>
                                                        @endif
                                                    </li>
                                                </ul>
                                            </div>
                                        </td>
                                    </tr>
                                @endif
                            @empty
                                <tr>
                                    <td colspan="8" class="text-center text-muted py-4">No matching documents.</td>
                                </tr>
                            @endforelse
                        @else
                            {{-- Blank initial state: render no rows to keep the display empty --}}
                        @endif
                    </tbody>
                </table>
            </div>

            {{-- Only show pagination when results are displayed --}}
            @if ($showResults)
                <div class="card-footer">{{ $files->links() }}</div>
            @endif
        </div>
    </div>

    <style>
        .upload-stack { max-width: 440px; }
        .upload-stack .form-control, .upload-stack .form-select { width: 100%; }
    </style>

    <script>
        (function () {
            const all = document.getElementById('check-all');
            if (!all) return;
            all.addEventListener('change', function() {
                document.querySelectorAll('.row-check').forEach(cb => cb.checked = all.checked);
            });
        })();
    </script>
@endsection