@extends('layouts.admin')

@section('title', '問題詳情')

@push('breadcrumb')
    <li class="breadcrumb-item"><a href="{{ route('issues.index') }}">問題追蹤板</a></li>
    <li class="breadcrumb-item active" aria-current="page">問題詳情</li>
@endpush

@push('styles')
<link rel="stylesheet" href="{{ asset('css/pages/issues/show.css') }}">
@endpush

@section('content')
<!-- Header -->
<div class="issue-header {{ $issue->isClosed() ? 'closed' : '' }}">
    <div class="row align-items-center">
        <div class="col-md-8">
            @if($issue->isClosed())
                <i class="bi bi-check-circle-fill me-2"></i>
            @endif
            <h1>{{ $issue->title }}</h1>
            <div class="mt-2">
                <span class="badge badge-category badge-{{ $issue->category == '工人問題' ? 'worker' : ($issue->category == '宿舍問題' ? 'dormitory' : ($issue->category == '公司問題' ? 'company' : ($issue->category == '店鋪問題' ? 'shop' : 'other'))) }}">
                    {{ $issue->category }}
                </span>
                <span class="badge badge-status status-{{ $issue->status }} ms-2">
                    {{ $issue->status_label }}
                </span>
            </div>
        </div>
        <div class="col-md-4 text-md-right">
            <div class="btn-group">
                @if(!$issue->isClosed())
                    <form action="{{ route('issues.close', $issue->id) }}" method="POST" class="d-inline">
                        @csrf
                        <button type="submit" class="btn btn-success">
                            <i class="bi bi-check-circle me-1"></i>完結問題
                        </button>
                    </form>
                @else
                    @if(auth()->user()->isAdmin() || auth()->id() === $issue->user_id)
                        <form action="{{ route('issues.reopen', $issue->id) }}" method="POST" class="d-inline">
                            @csrf
                            <button type="submit" class="btn btn-warning">
                                <i class="bi bi-arrow-counterclockwise me-1"></i>重新開啟
                            </button>
                        </form>
                    @endif
                @endif
                
                @if(auth()->user()->isAdmin() || auth()->id() === $issue->user_id)
                    <a href="{{ route('issues.edit', $issue->id) }}" class="btn btn-info">
                        <i class="bi bi-pencil me-1"></i>編輯
                    </a>
                    <form action="{{ route('issues.destroy', $issue->id) }}" method="POST" class="d-inline" onsubmit="return confirm('確定要刪除此問題嗎？');">
                        @csrf
                        @method('DELETE')
                        <button type="submit" class="btn btn-danger">
                            <i class="bi bi-trash me-1"></i>刪除
                        </button>
                    </form>
                @endif
                <a href="{{ route('issues.index') }}" class="btn btn-outline-light">
                    <i class="bi bi-arrow-left me-1"></i>返回
                </a>
            </div>
        </div>
    </div>
</div>

<!-- Issue Details -->
<div class="issue-card">
    <div class="card-header">
        <i class="bi bi-info-circle me-2"></i>問題詳情
    </div>
    <div class="card-body">
        <div class="issue-content {{ $issue->isClosed() ? 'closed-content' : '' }}">
            {{ $issue->content }}
        </div>
        
        <hr>
        
        <div class="row">
            <div class="col-md-6">
                <div class="issue-meta-item">
                    <span class="issue-meta-label"><i class="bi bi-flag me-2"></i>優先級</span>
                    <span class="issue-meta-value priority-{{ $issue->priority }}">{{ $issue->priority_label }}</span>
                </div>
                <div class="issue-meta-item">
                    <span class="issue-meta-label"><i class="bi bi-calendar me-2"></i>建立時間</span>
                    <span class="issue-meta-value">{{ $issue->created_at->format('Y-m-d H:i') }}</span>
                </div>
                <div class="issue-meta-item">
                    <span class="issue-meta-label"><i class="bi bi-person me-2"></i>建立者</span>
                    <span class="issue-meta-value">{{ $issue->user->name }}</span>
                </div>
            </div>
            <div class="col-md-6">
                @if($issue->due_date)
                    <div class="issue-meta-item">
                        <span class="issue-meta-label"><i class="bi bi-calendar-event me-2"></i>處理期限</span>
                        <span class="issue-meta-value {{ $issue->isOverdue() ? 'text-danger fw-bold' : '' }}">
                            {{ $issue->due_date->format('Y-m-d H:i') }}
                            @if($issue->isOverdue())
                                <i class="bi bi-exclamation-triangle-fill ms-1"></i>已逾期
                            @endif
                        </span>
                    </div>
                @endif
                @if($issue->assignedUser)
                    <div class="issue-meta-item">
                        <span class="issue-meta-label"><i class="bi bi-person-badge me-2"></i>跟進人</span>
                        <span class="issue-meta-value">{{ $issue->assignedUser->name }}</span>
                    </div>
                @endif
                @if($issue->closed_at)
                    <div class="issue-meta-item">
                        <span class="issue-meta-label"><i class="bi bi-check-circle me-2"></i>完結時間</span>
                        <span class="issue-meta-value">{{ $issue->closed_at->format('Y-m-d H:i') }}</span>
                    </div>
                @endif
            </div>
        </div>
    </div>
</div>

<!-- Attachments Section -->
<div class="issue-card">
    <div class="card-header d-flex justify-content-between align-items-center">
        <div>
            <i class="bi bi-paperclip me-2"></i>附件 ({{ $issue->attachments->count() }})
        </div>
    </div>
    <div class="card-body">
        @forelse($issue->attachments as $attachment)
            <div class="d-flex align-items-center justify-content-between border-bottom py-2 gap-2">
                <div class="d-flex align-items-center gap-2 text-decoration-none">
                    @if(str_starts_with($attachment->mime_type, 'image/'))
                        <a href="{{ route('issue_attachments.view', $attachment) }}" target="_blank">
                            <img src="{{ route('issue_attachments.view', $attachment) }}"
                                 alt="{{ $attachment->original_filename }}"
                                 style="height: 48px; width: 48px; object-fit: cover; border-radius: 6px;">
                        </a>
                    @else
                        <a href="{{ route('issue_attachments.view', $attachment) }}" target="_blank"
                           style="font-size: 2rem; line-height: 1;">
                            <i class="bi bi-file-earmark-pdf text-danger"></i>
                        </a>
                    @endif
                    <div>
                        <a href="{{ route('issue_attachments.view', $attachment) }}" target="_blank"
                           class="fw-semibold text-decoration-none">
                            {{ $attachment->original_filename }}
                        </a>
                        <div class="text-muted small">
                            {{ $attachment->humanFileSize() }}
                            @if($attachment->user) · {{ $attachment->user->name }}@endif
                            · {{ $attachment->created_at->format('Y-m-d H:i') }}
                        </div>
                    </div>
                </div>
                @if($attachment->canBeDeletedBy(auth()->user()))
                    <form action="{{ route('issue_attachments.destroy', $attachment) }}" method="POST"
                          onsubmit="return confirm('確定刪除此附件？');">
                        @csrf
                        @method('DELETE')
                        <button type="submit" class="btn btn-sm btn-outline-danger" title="刪除">
                            <i class="bi bi-trash"></i>
                        </button>
                    </form>
                @endif
            </div>
        @empty
            <div class="text-muted small py-2">尚無附件</div>
        @endforelse

        <form action="{{ route('issues.attachments.store', $issue) }}" method="POST"
              enctype="multipart/form-data" class="mt-3">
            @csrf
            <div class="row g-2 align-items-center">
                <div class="col-md-8">
                    <input type="file" name="files[]" class="form-control"
                           accept="image/jpeg,image/png,image/gif,image/webp,application/pdf,.pdf"
                           multiple required>
                    <div class="form-text">
                        <i class="bi bi-camera me-1"></i>可選相片或 PDF，最多 5 個檔案，每個上限 10MB
                    </div>
                </div>
                <div class="col-md-4">
                    <button type="submit" class="btn btn-outline-primary w-100">
                        <i class="bi bi-upload me-1"></i>上載附件
                    </button>
                </div>
            </div>
        </form>
    </div>
</div>

<!-- Replies Section -->
<div class="issue-card">
    <div class="card-header d-flex justify-content-between align-items-center">
        <div>
            <i class="bi bi-chat-dots me-2"></i>回覆 ({{ $issue->replies->count() }})
        </div>
    </div>
    <div class="card-body">
        @forelse($issue->topLevelReplies as $reply)
            @include('issues.partials.reply', ['reply' => $reply, 'level' => 0])
        @empty
            <div class="text-center py-4 text-muted">
                <i class="bi bi-chat-dots" style="font-size: 3rem;"></i>
                <p class="mt-2">尚未有任何回覆</p>
            </div>
        @endforelse

        <!-- Reply Form -->
        <div class="reply-form">
            <h5 class="mb-3"><i class="bi bi-reply me-2"></i>發表回覆</h5>
            <form action="{{ route('issues.replies.store', $issue->id) }}" method="POST">
                @csrf
                <input type="hidden" name="parent_id" id="parent_id" value="">
                
                <div class="mb-3">
                    <textarea name="content" 
                              class="form-control" 
                              rows="4" 
                              placeholder="輸入您的回覆..."
                              required></textarea>
                </div>
                
                <div class="d-flex justify-content-between align-items-center">
                    <small id="reply-indicator" class="text-muted"></small>
                    <div>
                        <button type="button" class="btn btn-outline-secondary btn-sm me-2" onclick="cancelReply()">
                            取消回覆
                        </button>
                        <button type="submit" class="btn btn-primary">
                            <i class="bi bi-send me-1"></i>送出回覆
                        </button>
                    </div>
                </div>
            </form>
        </div>
    </div>
</div>
@endsection

@push('scripts')
<script>
document.querySelectorAll('.btn-reply-to').forEach(function (btn) {
    btn.addEventListener('click', function () {
        document.getElementById('parent_id').value = btn.dataset.replyId;
        document.getElementById('reply-indicator').textContent = '回覆給 ' + btn.dataset.author;
        document.querySelector('textarea[name="content"]').focus();
    });
});

function cancelReply() {
    document.getElementById('parent_id').value = '';
    document.getElementById('reply-indicator').textContent = '';
}
</script>
@endpush