const app = getApp();

Component({
    data: {},

    methods: {
        // 开始 OTA 升级
        startOtaUpgrade() {
            const activeProtocol = app.globalData.ppScale.activeProtocol;

            if (!activeProtocol) {
                wx.showToast({ title: '设备未连接，请重新连接', icon: 'none' });
                return;
            }

            wx.showLoading({ title: '正在升级固件，请稍候...', mask: true });

            // 重置完成标志位，防止回调重复触发
            this._otaCompleted = false;

            // status: false = 成功，true = 失败
            activeProtocol.codeOtaUpdate((status) => {
                // 延迟 3 秒，让 Loading 多转一会再收口
                setTimeout(() => {
                    if (status == 0) {
                        // status false → 升级成功
                        this._finish(true);
                    } else {
                        // status true → 升级失败
                        this._finish(false, '固件升级失败');
                    }
                }, 3000);
            });
        },

        // 统一收口：成功/失败提示后跳转首页
        _finish(success, failMsg) {
            if (this._otaCompleted) return;
            this._otaCompleted = true;
            wx.hideLoading();

            if (success) {
                wx.showToast({ title: '固件升级成功', icon: 'success', duration: 2000 });
            } else {
                wx.showToast({ title: failMsg || '固件升级失败', icon: 'none', duration: 2000 });
            }

            setTimeout(() => {
                app.cleanupConnection();
                wx.switchTab({ url: '/pages/home/home' });
            }, 2000);
        }
    }
});