import config from '@/utils/mapConfig';

module.exports = {
    getLocation() {
        return uni.getLocation({
            type: 'wgs84'
        })
    },
    getLocationPromise() {
        return new Promise((resolve, reject) => {
            uni.getLocation({
                type: 'wgs84',
                success: (res) => {
                    resolve(res)
                },
                fail: () => {
                    resolve({})
                }
            })
        })
    },

    getCurAddress(latitude, longitude, cb) {
        const postStr = {
            lon: longitude,
            lat: latitude,
            ver: 1 // 接口版本号
        }
        const encodedPostStr = encodeURIComponent(JSON.stringify(postStr))
        
        uni.request({
            url: `https://api.tianditu.gov.cn/geocoder?postStr=${encodedPostStr}&type=geocode&tk=${config.key}`,
            method: 'GET',
            success: (res) => {
                if (res.data.status === '0') { // 请求成功[6](@ref)
                    const result = res.data.result;
                    // 从返回数据中提取省市区信息[1,6](@ref)
                    const addressComponent = result.addressComponent;
                    const province = addressComponent.province; // 省份
                    const city = addressComponent.city;         // 城市
                    const county = addressComponent.county;     // 区县
                    const formattedAddress = result.formatted_address; // 完整地址
                    cb && cb({
                        province,
                        city,
                        county,
                        formattedAddress
                    })
                }
                uni.hideLoading()
            },
            fail: () => {
                uni.hideLoading()
            }
        })
    },

    getLocationSetting(cb) {
        uni.getSetting({
            success: res => {
                if (!res.authSetting['scope.userLocation']) {
                    uni.showModal({
                        title: '提示',
                        content: '当前定位未开启，请点击确定手动开启定位',
                        success: response => {
                            if (response.confirm) {
                                cb && cb ()
                            } else {
                                uni.showToast({
                                    title: '您拒绝了授权，无法获取定位服务',
                                    duration: 2000,
                                    icon: 'none'
                                })
                            }
                        }
                    })
                }
            }
        })
    },

    openLocationSettting() {
        return new Promise((resolve, reject) => {
            uni.openSetting({
                success: res => {
                    if (res.authSetting['scope.userLocation']) {
                        resolve()
                    } else {
                        uni.showToast({
                            title: '您拒绝了授权，无法获取定位服务',
                            duration: 2000,
                            icon: 'none'
                        })
                    }
                },
                fail: () => {
                    reject()
                }
            })
        })
    },

    getUrlParam(url, name) {
        url = decodeURIComponent(url)
        var reg = new RegExp("(^|&)" + name + "=([^&]*)(&|$)", "i");
        var r = url.match(reg);
        console.log(r);
        if (r != null) return (r[2]);
        return null;
    }
}