import { uploadAsset, memberStats } from '../../services/member-api';
import { getUser as getServerUser, startAccount } from '../../utils/auth';
import { disablePageShareMenu } from '../../base/pageMixin';
import { APP_VERSION } from '../../config/config';
import {
    getCachedUser,
    getUser,
    type UserInfo,
    updateUserProfile,
} from '../../utils/auth';

Page({
    DEFAULT_AVATAR_URL: '/assets/imgs/doodle-head.png',
    data: {
        userName: '微信用户',
        avatarUrl: '',
        isDevEnv: false,
        printCount: 0,
        favoriteCount: 0,
        version: APP_VERSION,
        showProfileEditor: false,
        draftNickName: '',
        draftAvatarUrl: '/assets/imgs/doodle-head.png',
        isSavingProfile: false,
        serverAccountActionRequired: false,
        isStartingAccount: false,
    },

    onLoad() {
        disablePageShareMenu();
        this.syncUserInfoFromApp();
        const isDevEnv =
            wx.getAccountInfoSync().miniProgram.envVersion === 'develop';
        this.setData({
            isDevEnv,
        });
    },

    onShow() {
        void this.checkServerAccount();
        this.syncUserInfoFromApp();
        void this.refreshStats();
    },

    /** 正常登录始终静默；账户不存在时才展示用户主动重新开始的入口。 */
    async checkServerAccount() {
        try {
            await getServerUser();
            this.setData({ serverAccountActionRequired: false });
        } catch (error) {
            const reason = (error as { reason?: string }).reason;
            this.setData({
                serverAccountActionRequired:
                    reason === 'ACCOUNT_NOT_FOUND' ||
                    reason === 'ACCOUNT_RESTART_REQUIRED',
            });
        }
    },

    async onStartServerAccount() {
        if (this.data.isStartingAccount) return;
        this.setData({ isStartingAccount: true });
        try {
            await startAccount();
            this.setData({ serverAccountActionRequired: false });
            wx.showToast({ title: '账户已就绪', icon: 'success' });
        } catch {
            wx.showToast({ title: '账户暂不可用，请稍后重试', icon: 'none' });
        } finally {
            this.setData({ isStartingAccount: false });
        }
    },

    async syncUserInfoFromApp() {
        const app = getApp<IAppOption>();
        const cachedUser = app.globalData.user || getCachedUser();

        if (cachedUser) this.applyUserInfo(cachedUser);
        else
            this.setData({
                userName: '微信用户',
                avatarUrl: this.DEFAULT_AVATAR_URL,
                printCount: 0,
                favoriteCount: 0,
            });

        try {
            const latestUser = await getUser();
            this.applyUserInfo(latestUser);
        } catch (error) {
            console.error('获取用户信息失败', error);
        }
    },

    applyUserInfo(user: UserInfo) {
        const userName = user.nickName?.trim() || '微信用户';
        const avatarUrl =
            user.avatarUrl || (this as any).DEFAULT_AVATAR_URL || '';
        this.setData({
            userName,
            avatarUrl,
            draftNickName: userName === '微信用户' ? '' : userName,
            draftAvatarUrl: avatarUrl,
        });
    },

    async refreshStats() {
        try {
            const stats = await memberStats();
            const { downloadCount: printCount, favoriteCount } = stats;
            this.setData({ printCount, favoriteCount });
        } catch {
            this.setData({ printCount: 0, favoriteCount: 0 });
        }
    },

    onOpenProfileEditor() {
        this.setData({
            showProfileEditor: true,
            draftNickName:
                this.data.userName === '微信用户' ? '' : this.data.userName,
            draftAvatarUrl: this.data.avatarUrl,
        });
    },

    onCloseProfileEditor() {
        if (this.data.isSavingProfile) return;
        this.setData({ showProfileEditor: false });
    },

    onChooseAvatar(e: WechatMiniprogram.CustomEvent<{ avatarUrl?: string }>) {
        const avatarUrl = e.detail?.avatarUrl || '';
        if (!avatarUrl) return;
        this.setData({ draftAvatarUrl: avatarUrl });
    },

    onNicknameInput(e: WechatMiniprogram.CustomEvent<{ value: string }>) {
        const nickName = (e.detail?.value || '').trim();
        this.setData({ draftNickName: nickName });
    },

    async onSubmitProfile() {
        if (this.data.isSavingProfile) return;

        const nickName = this.data.draftNickName.trim();
        if (!nickName) {
            wx.showToast({ title: '请输入昵称', icon: 'none' });
            return;
        }

        if (!this.data.draftAvatarUrl) {
            wx.showToast({ title: '请选择头像', icon: 'none' });
            return;
        }

        this.setData({ isSavingProfile: true });

        try {
            const avatarAssetId = await this.persistAvatarIfNeeded(
                this.data.draftAvatarUrl,
            );
            const user = await updateUserProfile({
                nickName,
                avatarAssetId,
            });

            this.applyUserInfo(user);
            this.setData({ showProfileEditor: false });
            wx.showToast({ title: '资料已更新', icon: 'success' });
        } catch (error) {
            console.error('更新用户资料失败', error);
            wx.showToast({ title: '更新失败，请稍后重试', icon: 'none' });
        } finally {
            this.setData({ isSavingProfile: false });
        }
    },

    async persistAvatarIfNeeded(avatarUrl: string): Promise<string | null> {
        const user = await getUser();
        if (!avatarUrl || avatarUrl === this.DEFAULT_AVATAR_URL) return null;
        if (avatarUrl === user.avatarUrl) return user.avatarAssetId || null;
        return (await uploadAsset(avatarUrl, 'avatar')).id;
    },

    onGoToDownloads() {
        wx.setStorageSync('favorites_active_tab', 'downloads');
        wx.switchTab({ url: '/pages/favorites/favorites' });
    },

    onGoToFavorites() {
        wx.setStorageSync('favorites_active_tab', 'favorites');
        wx.switchTab({ url: '/pages/favorites/favorites' });
    },

    onGoToGuide() {
        wx.navigateTo({ url: '/supportPages/guide/guide' });
    },

    onGoToPrintSettings() {
        wx.showToast({ title: '功能开发中', icon: 'none' });
    },

    onGoToSettings() {
        wx.navigateTo({ url: '/supportPages/settings/settings' });
    },

    onGoToDebug() {
        wx.navigateTo({ url: '/supportPages/debug/debug' });
    },

    onGoToFeedback() {
        wx.showToast({ title: '功能开发中', icon: 'none' });
    },

    onGoToAbout() {
        wx.showToast({ title: '涂鸦丫练习纸', icon: 'none' });
    },

    onGoToPremium() {
        wx.showToast({ title: '功能开发中', icon: 'none' });
    },
});