@extends('layouts.app')

@section('title', 'Audit Logs')

@push('styles')
    <style>
        .audit-badge {
            font-weight: 600;
            font-size: 0.72rem;
            padding: 3px 10px;
            border-radius: 20px;
            text-transform: uppercase;
            letter-spacing: 0.3px;
        }

        .badge-created {
            background: hsl(160, 84%, 93%);
            color: hsl(160, 84%, 30%);
        }

        .badge-updated {
            background: hsl(38, 92%, 93%);
            color: hsl(38, 92%, 35%);
        }

        .badge-deleted,
        .badge-soft_deleted {
            background: hsl(0, 72%, 95%);
            color: hsl(0, 72%, 45%);
        }

        .badge-restored {
            background: hsl(199, 89%, 93%);
            color: hsl(199, 89%, 35%);
        }

        .badge-reversed {
            background: hsl(262, 83%, 95%);
            color: hsl(262, 83%, 50%);
        }

        .diff-pre {
            font-size: 0.78rem;
            max-height: 200px;
            overflow-y: auto;
            background: var(--surface-3);
            border-radius: var(--radius-xs);
            padding: 10px 14px;
            margin: 0;
            white-space: pre-wrap;
            word-break: break-all;
        }

        .model-tag {
            font-size: 0.75rem;
            background: var(--surface-3);
            color: var(--text-secondary);
            padding: 2px 8px;
            border-radius: 4px;
            font-weight: 500;
            font-family: 'Courier New', monospace;
        }

        .filter-card .card-body {
            padding: 16px 20px;
        }

        .audit-meta {
            font-size: 0.78rem;
            color: var(--text-muted);
        }

        .audit-row:hover {
            cursor: pointer;
        }

        .detail-label {
            font-weight: 600;
            font-size: 0.8rem;
            color: var(--text-secondary);
            min-width: 110px;
        }
    </style>
@endpush

@section('content')
    <div class="d-flex justify-content-between align-items-center mb-4">
        <div>
            <h4 class="fw-bold mb-1"><i class="bi bi-shield-lock me-2"></i>Audit Logs</h4>
            <p class="text-muted mb-0" style="font-size: 0.85rem;">
                PRD §10.2 — Immutable activity trail for all critical operations
            </p>
        </div>
        <div>
            <span class="badge bg-secondary-subtle text-secondary" style="font-size: 0.8rem;">
                <i class="bi bi-lock-fill me-1"></i>Read-Only
            </span>
        </div>
    </div>

    {{-- Filter Panel --}}
    <div class="card filter-card mb-4">
        <div class="card-body">
            <form method="GET" action="{{ route('audit-logs.index') }}" id="auditFilterForm">
                <div class="row g-3 align-items-end">
                    {{-- User --}}
                    <div class="col-md-2">
                        <label class="form-label">User</label>
                        <select name="user_id" class="form-select form-select-sm" id="filterUser">
                            <option value="">All Users</option>
                            @foreach($users as $user)
                                <option value="{{ $user->id }}" {{ request('user_id') == $user->id ? 'selected' : '' }}>
                                    {{ $user->name }}
                                </option>
                            @endforeach
                        </select>
                    </div>

                    {{-- Model Type --}}
                    <div class="col-md-2">
                        <label class="form-label">Entity Type</label>
                        <select name="model_type" class="form-select form-select-sm" id="filterModel">
                            <option value="">All Models</option>
                            @foreach($modelTypes as $type)
                                <option value="{{ $type }}" {{ request('model_type') == $type ? 'selected' : '' }}>
                                    {{ class_basename($type) }}
                                </option>
                            @endforeach
                        </select>
                    </div>

                    {{-- Action --}}
                    <div class="col-md-2">
                        <label class="form-label">Action</label>
                        <select name="action" class="form-select form-select-sm" id="filterAction">
                            <option value="">All Actions</option>
                            @foreach($actions as $action)
                                <option value="{{ $action }}" {{ request('action') == $action ? 'selected' : '' }}>
                                    {{ ucfirst(str_replace('_', ' ', $action)) }}
                                </option>
                            @endforeach
                        </select>
                    </div>

                    {{-- Date Range --}}
                    <div class="col-md-2">
                        <label class="form-label">From</label>
                        <input type="date" name="date_from" class="form-control form-control-sm"
                            value="{{ request('date_from') }}" id="filterDateFrom">
                    </div>
                    <div class="col-md-2">
                        <label class="form-label">To</label>
                        <input type="date" name="date_to" class="form-control form-control-sm"
                            value="{{ request('date_to') }}" id="filterDateTo">
                    </div>

                    {{-- Search + Buttons --}}
                    <div class="col-md-2 d-flex gap-2">
                        <button type="submit" class="btn btn-primary btn-sm flex-fill" id="btnFilter">
                            <i class="bi bi-funnel-fill me-1"></i>Filter
                        </button>
                        <a href="{{ route('audit-logs.index') }}" class="btn btn-outline-secondary btn-sm" id="btnReset">
                            <i class="bi bi-x-lg"></i>
                        </a>
                    </div>
                </div>

                {{-- Keyword search row --}}
                <div class="row mt-3">
                    <div class="col-md-4">
                        <div class="input-group input-group-sm">
                            <span class="input-group-text"><i class="bi bi-search"></i></span>
                            <input type="text" name="search" class="form-control"
                                placeholder="Search by user, ID, or narration..." value="{{ request('search') }}"
                                id="filterSearch">
                        </div>
                    </div>
                    <div class="col-md-8 d-flex align-items-center">
                        <span class="text-muted" style="font-size: 0.82rem;">
                            Showing {{ $logs->firstItem() ?? 0 }}–{{ $logs->lastItem() ?? 0 }}
                            of {{ number_format($logs->total()) }} records
                        </span>
                    </div>
                </div>
            </form>
        </div>
    </div>

    {{-- Audit Log Table --}}
    <div class="card">
        <div class="card-body p-0">
            @if($logs->isEmpty())
                <div class="empty-state">
                    <i class="bi bi-shield-check d-block"></i>
                    <h5>No Audit Records Found</h5>
                    <p>Adjust your filters or check back later.</p>
                </div>
            @else
                <div class="table-responsive">
                    <table class="table table-hover mb-0" id="auditTable">
                        <thead>
                            <tr>
                                <th style="width: 50px;">#</th>
                                <th style="width: 160px;">Timestamp</th>
                                <th style="width: 130px;">User</th>
                                <th style="width: 100px;">Action</th>
                                <th style="width: 140px;">Entity</th>
                                <th style="width: 60px;">ID</th>
                                <th>Changes Summary</th>
                                <th style="width: 50px;"></th>
                            </tr>
                        </thead>
                        <tbody>
                            @foreach($logs as $log)
                                <tr class="audit-row" data-bs-toggle="modal" data-bs-target="#detailModal{{ $log->id }}">
                                    <td class="text-muted">{{ $log->id }}</td>
                                    <td>
                                        <div style="font-size: 0.82rem; font-weight: 500;">
                                            {{ $log->created_at->format('d M Y') }}
                                        </div>
                                        <div class="audit-meta">{{ $log->created_at->format('h:i:s A') }}</div>
                                    </td>
                                    <td>
                                        @if($log->user)
                                            <span class="fw-medium">{{ $log->user->name }}</span>
                                        @else
                                            <span class="text-muted fst-italic">System</span>
                                        @endif
                                    </td>
                                    <td>
                                        <span class="audit-badge badge-{{ $log->action }}">
                                            {{ ucfirst(str_replace('_', ' ', $log->action)) }}
                                        </span>
                                    </td>
                                    <td>
                                        <span class="model-tag">{{ class_basename($log->auditable_type) }}</span>
                                    </td>
                                    <td class="fw-medium">{{ $log->auditable_id }}</td>
                                    <td>
                                        @if($log->action === 'created' && $log->new_values)
                                            <span class="text-muted" style="font-size: 0.8rem;">
                                                {{ Str::limit(implode(', ', array_keys($log->new_values)), 80) }}
                                            </span>
                                        @elseif($log->action === 'updated' && $log->new_values)
                                            <span style="font-size: 0.8rem;">
                                                @foreach(array_slice($log->new_values, 0, 3) as $field => $value)
                                                    <span class="text-primary fw-medium">{{ $field }}</span>
                                                    <span class="text-muted">→
                                                        {{ Str::limit(is_array($value) ? json_encode($value) : (string) $value, 20) }}</span>{{ !$loop->last ? ', ' : '' }}
                                                @endforeach
                                                @if(count($log->new_values) > 3)
                                                    <span class="text-muted">+{{ count($log->new_values) - 3 }} more</span>
                                                @endif
                                            </span>
                                        @elseif(in_array($log->action, ['deleted', 'soft_deleted']))
                                            <span class="text-danger" style="font-size: 0.8rem;">Record removed</span>
                                        @elseif($log->action === 'restored')
                                            <span class="text-success" style="font-size: 0.8rem;">Record restored</span>
                                        @else
                                            <span class="text-muted" style="font-size: 0.8rem;">—</span>
                                        @endif
                                    </td>
                                    <td>
                                        <button class="btn btn-sm btn-outline-secondary btn-xs" title="View details">
                                            <i class="bi bi-eye"></i>
                                        </button>
                                    </td>
                                </tr>

                                {{-- Detail Modal --}}
                                <div class="modal fade" id="detailModal{{ $log->id }}" tabindex="-1">
                                    <div class="modal-dialog modal-lg modal-dialog-centered">
                                        <div class="modal-content" style="border-radius: var(--radius);">
                                            <div class="modal-header" style="border-bottom: 1px solid var(--border);">
                                                <h6 class="modal-title fw-bold">
                                                    <i class="bi bi-shield-lock me-2"></i>Audit Detail #{{ $log->id }}
                                                </h6>
                                                <button type="button" class="btn-close" data-bs-dismiss="modal"></button>
                                            </div>
                                            <div class="modal-body">
                                                {{-- Meta Grid --}}
                                                <div class="row g-3 mb-4">
                                                    <div class="col-md-6">
                                                        <div class="d-flex gap-2 mb-2">
                                                            <span class="detail-label">User:</span>
                                                            <span>{{ $log->user?->name ?? 'System' }}</span>
                                                        </div>
                                                        <div class="d-flex gap-2 mb-2">
                                                            <span class="detail-label">Action:</span>
                                                            <span class="audit-badge badge-{{ $log->action }}">
                                                                {{ ucfirst(str_replace('_', ' ', $log->action)) }}
                                                            </span>
                                                        </div>
                                                        <div class="d-flex gap-2 mb-2">
                                                            <span class="detail-label">Entity:</span>
                                                            <span
                                                                class="model-tag">{{ class_basename($log->auditable_type) }}</span>
                                                            <span class="fw-medium">#{{ $log->auditable_id }}</span>
                                                        </div>
                                                    </div>
                                                    <div class="col-md-6">
                                                        <div class="d-flex gap-2 mb-2">
                                                            <span class="detail-label">Timestamp:</span>
                                                            <span>{{ $log->created_at->format('d M Y, h:i:s A') }}</span>
                                                        </div>
                                                        <div class="d-flex gap-2 mb-2">
                                                            <span class="detail-label">IP Address:</span>
                                                            <span class="font-monospace"
                                                                style="font-size:0.82rem;">{{ $log->ip_address ?? '—' }}</span>
                                                        </div>
                                                        <div class="d-flex gap-2 mb-2">
                                                            <span class="detail-label">User Agent:</span>
                                                            <span class="audit-meta"
                                                                style="word-break: break-all;">{{ Str::limit($log->user_agent, 80) ?? '—' }}</span>
                                                        </div>
                                                    </div>
                                                </div>

                                                @if($log->narration)
                                                    <div class="mb-3">
                                                        <span class="detail-label d-block mb-1">Narration:</span>
                                                        <p class="mb-0" style="font-size: 0.85rem;">{{ $log->narration }}</p>
                                                    </div>
                                                @endif

                                                {{-- Diff Panel --}}
                                                <div class="row g-3">
                                                    @if($log->old_values)
                                                        <div class="col-md-6">
                                                            <label class="detail-label d-block mb-1">
                                                                <i class="bi bi-dash-circle text-danger me-1"></i>Old Values
                                                            </label>
                                                            <pre
                                                                class="diff-pre">{{ json_encode($log->old_values, JSON_PRETTY_PRINT | JSON_UNESCAPED_UNICODE) }}</pre>
                                                        </div>
                                                    @endif
                                                    @if($log->new_values)
                                                        <div class="col-md-{{ $log->old_values ? '6' : '12' }}">
                                                            <label class="detail-label d-block mb-1">
                                                                <i class="bi bi-plus-circle text-success me-1"></i>New Values
                                                            </label>
                                                            <pre
                                                                class="diff-pre">{{ json_encode($log->new_values, JSON_PRETTY_PRINT | JSON_UNESCAPED_UNICODE) }}</pre>
                                                        </div>
                                                    @endif
                                                </div>

                                                @if(!$log->old_values && !$log->new_values)
                                                    <div class="text-center text-muted py-3">
                                                        <i class="bi bi-info-circle me-1"></i>No value changes captured for this event.
                                                    </div>
                                                @endif
                                            </div>
                                            <div class="modal-footer" style="border-top: 1px solid var(--border);">
                                                <button type="button" class="btn btn-outline-secondary btn-sm"
                                                    data-bs-dismiss="modal">Close</button>
                                            </div>
                                        </div>
                                    </div>
                                </div>
                            @endforeach
                        </tbody>
                    </table>
                </div>
            @endif
        </div>

        {{-- Pagination --}}
        @if($logs->hasPages())
            <div class="card-footer bg-transparent d-flex justify-content-center py-3">
                {{ $logs->links() }}
            </div>
        @endif
    </div>
@endsection