const app = getApp();

Page({
	data: {
		getDeviceSetting: false,

		initText: "",
		devicesList: [],
		searchDevicesList: true,
	},

	onLoad(options) {
		this.checkBluetoothPermissionAndInit();
	},

	onShow() {
		if (this.data.getDeviceSetting) {
			this.getDeviceSettingList();
		} else {
            this.checkBluetoothPermissionAndInit();
        }
	},

	checkBluetoothPermissionAndInit() {
        this.setData({
            initText: "正在检查蓝牙权限..."
        });
        wx.getSetting({
            success: (res) => {
                if (res.authSetting['scope.bluetooth']) {
                    this.openBluetoothAdapter();
                } else {
                    wx.authorize({
                        scope: 'scope.bluetooth',
                        success: () => {
                            this.openBluetoothAdapter();
                        },
                        fail: (err) => {
                            this.setData({
                                initText: "蓝牙权限被拒绝。"
                            });
                            wx.showModal({
                                title: '提示',
                                content: '您拒绝了蓝牙权限，将无法连接蓝牙秤。是否前往设置开启？',
                                confirmText: '去开启',
                                cancelText: '不开启',
                                success: (modalRes) => {
                                    if (modalRes.confirm) {
                                        wx.openSetting({
                                            success: (settingRes) => {
                                                console.log('openSetting success', settingRes);
                                            },
                                            fail: (settingErr) => {
                                                wx.navigateBack({
                                                    delta: 1
                                                });
                                            }
                                        });
                                    } else {
                                        wx.navigateBack({
                                            delta: 1
                                        });
                                    }
                                }
                            });
                        }
                    });
                }
            },
            fail: (err) => {
                this.setData({
                    initText: "获取权限设置失败。"
                });
                wx.showToast({
                    title: '获取权限设置失败',
                    icon: 'none'
                });
                wx.navigateBack({
                    delta: 1
                });
            }
        });
    },
    
    openBluetoothAdapter() {
        this.setData({
            initText: "正在初始化蓝牙..."
        });
        wx.openBluetoothAdapter({
            success: () => {
                this.setData({
                    initText: "蓝牙初始化成功"
                });
                this.getDeviceSettingList();
            },
            fail: (err) => {
                this.setData({
                    initText: "蓝牙初始化失败。"
                });
                if (err.errCode === 10001) {
                    wx.showModal({
                        title: "提示",
                        content: "请确保手机蓝牙已开启。",
                        showCancel: false,
                        success: () => {
                            wx.navigateBack({
                                delta: 1
                            });
                        }
                    });
                } else if (err.errMsg && err.errMsg.includes('permission denied')) {
                    wx.showModal({
                        title: '提示',
                        content: '蓝牙权限仍被拒绝，无法使用蓝牙功能。',
                        showCancel: false,
                        success: () => {
                            wx.navigateBack({
                                delta: 1
                            });
                        }
                    });
                } else {
                    wx.showToast({
                        title: `蓝牙适配器打开失败: ${err.errMsg || err.errCode}`,
                        icon: 'none',
                        success: () => {
                            wx.navigateBack({
                                delta: 1
                            });
                        }
                    });
                }
            },
        });
    },

	getDeviceSettingList() {
		// app.globalData.ppScale.plugin.Blue.visibleLog(true);
		this.setData({
			initText: "设备搜索中..."
		});
        app.globalData.ppScale.device.list = [];
		let seviceList = app.globalData.ppScale.device.setting;
		app.globalData.ppScale.plugin.Blue.setDeviceSetting(seviceList);
		let deviceNames = seviceList.map(item => item.deviceName);
		app.globalData.ppScale.plugin.Blue.start(deviceNames, false);
		app.globalData.ppScale.plugin.bus.subscribe("devicesList", (res) => {
			console.log("searchDevice ===> devicesList", res);
			
			this.setData({
				devicesList: res
			});
			this.selectDevice();
        });
	},

	selectDevice() {
		if(this.data.devicesList && this.data.devicesList.length && this.data.searchDevicesList) {
			this.setData({
				searchDevicesList: false
			});
			setTimeout(() => {
				app.globalData.ppScale.plugin.Blue.stopBluetoothDevicesDiscovery();
				app.globalData.ppScale.device.list = this.data.devicesList;
                wx.redirectTo({
                    url: "/pages/configureDevice/configureDevice"
                })
			}, 1000);
		}
	}
})