const { createApp, ref, provide, onMounted, onUnmounted } = Vue;

const app = createApp({
    setup() {
        const api = useApi();
        const currentPage = ref('log');
        const authReady = ref(false);
        const authenticated = ref(false);
        const authUser = ref('');
        const loginLoading = ref(false);
        const loginForm = ref({
            username: '',
            password: '',
        });

        provide('currentPage', currentPage);

        async function refreshAuthState() {
            const json = await api.getAuthStatus();
            if (json) {
                authenticated.value = !!json.authenticated;
                authUser.value = json.username || '';
                if (json.username && !loginForm.value.username) {
                    loginForm.value.username = json.username;
                }
            } else {
                authenticated.value = false;
                authUser.value = '';
            }
            authReady.value = true;
        }

        async function login() {
            const username = (loginForm.value.username || '').trim();
            const password = loginForm.value.password || '';
            if (!username) {
                ElementPlus.ElMessage.warning('请输入账号');
                return;
            }
            if (!password) {
                ElementPlus.ElMessage.warning('请输入密码');
                return;
            }

            loginLoading.value = true;
            const json = await api.login(username, password);
            loginLoading.value = false;
            if (!json) return;

            authenticated.value = true;
            authUser.value = json.username || username;
            loginForm.value.password = '';
            currentPage.value = 'log';
            ElementPlus.ElMessage.success('登录成功');
        }

        async function logout() {
            await api.logout();
            authenticated.value = false;
            loginForm.value.password = '';
            currentPage.value = 'log';
        }

        function handleAuthExpired() {
            const wasAuthenticated = authenticated.value;
            authenticated.value = false;
            loginForm.value.password = '';
            currentPage.value = 'log';
            if (wasAuthenticated) {
                ElementPlus.ElMessage.warning('登录状态已失效，请重新登录');
            }
        }

        function handleAuthUpdated(event) {
            const username = event?.detail?.username;
            if (username) {
                authUser.value = username;
            }
        }

        function handleLayoutAuthUpdated(username) {
            if (username) {
                authUser.value = username;
            }
        }

        onMounted(() => {
            window.addEventListener('webui-auth-required', handleAuthExpired);
            window.addEventListener('webui-auth-updated', handleAuthUpdated);
            refreshAuthState();
        });

        onUnmounted(() => {
            window.removeEventListener('webui-auth-required', handleAuthExpired);
            window.removeEventListener('webui-auth-updated', handleAuthUpdated);
        });

        return {
            authReady,
            authenticated,
            authUser,
            loginLoading,
            loginForm,
            login,
            logout,
            handleLayoutAuthUpdated,
        };
    },
    template: `
    <div v-if="authReady" class="app-root">
        <div v-if="!authenticated"
             class="login-page">
            <el-card class="login-card">
                <template #header>
                    <div class="login-title">WechatHookBot 控制台</div>
                    <div class="login-subtitle">Bright Tech UI · 安全登录</div>
                </template>
                <el-form label-position="top">
                    <el-form-item label="账号">
                        <el-input
                            v-model="loginForm.username"
                            autocomplete="username"
                            placeholder="请输入账号" />
                    </el-form-item>
                    <el-form-item label="密码">
                        <el-input
                            v-model="loginForm.password"
                            show-password
                            autocomplete="current-password"
                            placeholder="请输入密码"
                            @keyup.enter="login" />
                    </el-form-item>
                    <el-button type="primary" :loading="loginLoading" style="width:100%" @click="login">
                        登录
                    </el-button>
                </el-form>
            </el-card>
        </div>

        <AppLayout
            v-else
            :auth-user="authUser"
            @logout="logout"
            @auth-updated="handleLayoutAuthUpdated" />
    </div>
    `
});

app.use(ElementPlus, {
    locale: ElementPlusLocaleZhCn,
});

for (const [key, component] of Object.entries(ElementPlusIconsVue)) {
    app.component(key, component);
}

app.component('AppLayout', window.AppLayout);
app.component('LogViewer', window.LogViewer);
app.component('ConfigEditor', window.ConfigEditor);
app.component('ConfigSection', window.ConfigSection);
app.component('PluginList', window.PluginList);
app.component('PluginConfigDialog', window.PluginConfigDialog);
app.component('SecuritySettings', window.SecuritySettings);

app.mount('#app');