const { createApp, ref, onMounted } = Vue;

createApp({
    setup() {
        const currentView = ref('channels');
        const channels = ref([]);
        const notifications = ref([]);
        const showChannelModal = ref(false);
        const sending = ref(false);
        const message = ref(null);
        
        const channelForm = ref({
            name: '',
            type: 'discord',
            configJson: '{}',
            tags: '',
            is_active: true
        });
        
        const sendForm = ref({
            channels: [],
            title: '',
            body: '',
            priority: 'normal'
        });

        const API_BASE = '/api';

        const showMessage = (text, type = 'success') => {
            message.value = { text, type };
            setTimeout(() => message.value = null, 3000);
        };

        const fetchChannels = async () => {
            try {
                const res = await fetch(`${API_BASE}/channels`);
                const data = await res.json();
                channels.value = data.channels;
            } catch (e) {
                showMessage('获取通道失败', 'error');
            }
        };

        const fetchNotifications = async () => {
            try {
                const res = await fetch(`${API_BASE}/notifications`);
                const data = await res.json();
                notifications.value = data.notifications;
            } catch (e) {
                showMessage('获取历史失败', 'error');
            }
        };

        const saveChannel = async () => {
            try {
                const config = JSON.parse(channelForm.value.configJson);
                const tags = channelForm.value.tags.split(',').map(t => t.trim()).filter(t => t);
                
                const res = await fetch(`${API_BASE}/channels`, {
                    method: 'POST',
                    headers: { 'Content-Type': 'application/json' },
                    body: JSON.stringify({
                        name: channelForm.value.name,
                        type: channelForm.value.type,
                        config,
                        tags,
                        is_active: channelForm.value.is_active
                    })
                });
                
                if (res.ok) {
                    showMessage('通道创建成功');
                    showChannelModal.value = false;
                    fetchChannels();
                } else {
                    const err = await res.json();
                    showMessage(err.detail || '创建失败', 'error');
                }
            } catch (e) {
                showMessage('配置 JSON 格式错误', 'error');
            }
        };

        const deleteChannel = async (id) => {
            if (!confirm('确定删除此通道?')) return;
            
            try {
                const res = await fetch(`${API_BASE}/channels/${id}`, { method: 'DELETE' });
                if (res.ok) {
                    showMessage('删除成功');
                    fetchChannels();
                } else {
                    showMessage('删除失败', 'error');
                }
            } catch (e) {
                showMessage('删除失败', 'error');
            }
        };

        const testChannel = async (id) => {
            try {
                const res = await fetch(`${API_BASE}/channels/${id}/test`, { method: 'POST' });
                if (res.ok) {
                    showMessage('测试消息已发送');
                } else {
                    showMessage('测试失败', 'error');
                }
            } catch (e) {
                showMessage('测试失败', 'error');
            }
        };

        const sendNotification = async () => {
            if (!sendForm.value.body) {
                showMessage('请输入消息内容', 'error');
                return;
            }
            if (sendForm.value.channels.length === 0) {
                showMessage('请至少选择一个通道', 'error');
                return;
            }
            
            sending.value = true;
            try {
                const res = await fetch(`${API_BASE}/notify`, {
                    method: 'POST',
                    headers: { 'Content-Type': 'application/json' },
                    body: JSON.stringify({
                        channels: sendForm.value.channels,
                        title: sendForm.value.title,
                        body: sendForm.value.body,
                        priority: sendForm.value.priority
                    })
                });
                
                if (res.ok) {
                    showMessage('通知发送成功');
                    sendForm.value = { channels: [], title: '', body: '', priority: 'normal' };
                } else {
                    showMessage('发送失败', 'error');
                }
            } catch (e) {
                showMessage('发送失败', 'error');
            } finally {
                sending.value = false;
            }
        };

        const formatDate = (dateStr) => {
            if (!dateStr) return '-';
            return new Date(dateStr).toLocaleString('zh-CN');
        };

        const getStatusClass = (status) => {
            return {
                'px-2 py-1 rounded text-xs': true,
                'bg-green-100 text-green-800': status === 'sent',
                'bg-red-100 text-red-800': status === 'failed',
                'bg-yellow-100 text-yellow-800': status === 'pending'
            };
        };

        onMounted(() => {
            fetchChannels();
            fetchNotifications();
        });

        return {
            currentView,
            channels,
            notifications,
            showChannelModal,
            channelForm,
            sendForm,
            sending,
            message,
            saveChannel,
            deleteChannel,
            testChannel,
            sendNotification,
            formatDate,
            getStatusClass
        };
    }
}).mount('#app');