{{template "base" .}}

{{define "content"}}
<div class="row justify-content-center">
    <div class="col-lg-6">
        <div class="card shadow">
            <div class="card-header">
                <h5 class="mb-0"><i class="bi bi-pencil me-2"></i>課題編集</h5>
            </div>
            <div class="card-body">
                {{if .error}}<div class="alert alert-danger">{{.error}}</div>{{end}}
                <form method="POST" action="/assignments/{{.assignment.ID}}">
                    {{.csrfField}}
                    <div class="mb-3">
                        <label for="title" class="form-label">タイトル <span class="text-danger">*</span></label>
                        <input type="text" class="form-control" id="title" name="title" value="{{.assignment.Title}}"
                            required>
                    </div>
                    <div class="mb-3">
                        <label for="subject" class="form-label">科目</label>
                        <input type="text" class="form-control" id="subject" name="subject"
                            value="{{.assignment.Subject}}">
                    </div>
                    <div class="mb-3">
                        <label for="priority" class="form-label">重要度</label>
                        <select class="form-select" id="priority" name="priority">
                            <option value="low" {{if eq .assignment.Priority "low" }}selected{{end}}>小</option>
                            <option value="medium" {{if eq .assignment.Priority "medium" }}selected{{end}}>中</option>
                            <option value="high" {{if eq .assignment.Priority "high" }}selected{{end}}>大</option>
                        </select>
                    </div>
                    <div class="mb-3">
                        <label for="due_date" class="form-label">提出期限 <span class="text-danger">*</span></label>
                        <input type="datetime-local" class="form-control" id="due_date" name="due_date"
                            value="{{formatDateInput .assignment.DueDate}}" required>
                    </div>
                    <div class="mb-3">
                        <label for="description" class="form-label">説明</label>
                        <textarea class="form-control" id="description" name="description"
                            rows="3">{{.assignment.Description}}</textarea>
                    </div>
                    <!-- 通知設定 -->
                    <div class="card bg-light mb-3">
                        <div class="card-body py-2">
                            <h6 class="mb-2"><i class="bi bi-bell me-1"></i>通知設定</h6>
                            <!-- 督促通知 -->
                            <div class="form-check form-switch mb-2">
                                <input class="form-check-input" type="checkbox" id="urgent_reminder_enabled"
                                    name="urgent_reminder_enabled" {{if
                                    .assignment.UrgentReminderEnabled}}checked{{end}}>
                                <label class="form-check-label" for="urgent_reminder_enabled">
                                    督促通知（期限3時間前から繰り返し通知）
                                </label>
                            </div>
                            <div class="form-text small mb-2">
                                重要度により間隔が変わります：大=10分、中=30分、小=1時間
                            </div>
                            <hr class="my-2">
                            <div class="form-check form-switch">
                                <input class="form-check-input" type="checkbox" id="reminder_enabled"
                                    name="reminder_enabled" {{if .assignment.ReminderEnabled}}checked{{end}}
                                    onchange="toggleReminderDate(this)">
                                <label class="form-check-label" for="reminder_enabled">
                                    リマインダー（指定日時に通知）
                                </label>
                            </div>
                            <div class="mt-2" id="reminder_at_group"
                                style="display: {{if .assignment.ReminderEnabled}}block{{else}}none{{end}};">
                                <label for="reminder_at" class="form-label small">通知日時</label>
                                <input type="datetime-local" class="form-control form-control-sm" id="reminder_at"
                                    name="reminder_at"
                                    value="{{if .assignment.ReminderAt}}{{formatDateInput .assignment.ReminderAt}}{{end}}">
                                {{if .assignment.ReminderSent}}
                                <div class="text-success small mt-1"><i class="bi bi-check-circle me-1"></i>通知送信済み</div>
                                {{end}}
                            </div>
                        </div>
                    </div>
                    <div class="d-flex gap-2">
                        <button type="submit" class="btn btn-primary"><i class="bi bi-check-lg me-1"></i>更新</button>
                        <a href="/assignments" class="btn btn-outline-secondary">キャンセル</a>
                    </div>
                </form>
            </div>
        </div>
    </div>
</div>
<script>
    function toggleReminderDate(checkbox) {
        document.getElementById('reminder_at_group').style.display = checkbox.checked ? 'block' : 'none';
    }
</script>
{{end}}