<template>
    <view style="height: 100%;display: flex;flex-direction: column;align-items: center;">
        <view
            style="display: flex;flex-direction: column;align-items: center;overflow-y: scroll;flex:1;padding-top: 60rpx;">
            <view style="color: #666;margin-left: 20rpx;margin-right: 20rpx;text-align: center;font-size: 24rpx;">
                {{convertSecondsToHMS(page.countdown)}}
            </view>
            <view>
                <text style="color: black;font-size: 35rpx;font-weight: bold;">￥</text>
                <text style="color: black;font-size: 70rpx;font-weight: bold;">{{data.price}}</text>
            </view>
            <view style="color: #666;margin-left: 20rpx;margin-right: 20rpx;text-align: center;font-size: 24rpx;">
                {{data.goods}}
            </view>

            <view style="background: #ffffff;margin-top: 100rpx;border-radius: 20rpx;width: calc(100vw - 40rpx);">
                <radio-group @change="radioChange">
                    <label
                        style="width: 100%;height: 120rpx;display: flex;flex-direction: column;justify-content: center;align-items: center;"
                        v-for="(item, index) in  page.real" :key="index">
                        <view style="width: 100%;height: 120rpx;display: flex;flex-direction: row;align-items: center;">
                            <image :src="item.image" style="width: 55rpx;height: 55rpx;margin-left: 25rpx;"></image>
                            <text style="flex: 1;font-size: 30rpx;margin-left: 6rpx;">{{item.pay}}</text>
                            <radio style="transform:scale(0.8);margin-right: 25rpx;" :checked="index==0"
                                :value="index+''" :activeBackgroundColor="item.btnColor" />
                        </view>
                        <view v-if="index != page.real.length-1"
                            style="width: 93%;height: 1px;background-color: #f1f2f3;"></view>
                    </label>
                </radio-group>
            </view>
        </view>
        <view class="btn" :style="{'background': page.real[page.selected].btnColor}" @click="createOrder">
            {{page.submitText}}
        </view>
    </view>
</template>

<script>
    import {
        http
    } from '../../utils/pay_http.js'
    export default {
        data() {
            return {
                page: {
                    // 本插件提供的支付方式
                    supports: [{
                        payType: 'wxpay',
                        pay: '微信',
                        image: 'data:image/png;base64,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',
                        btnColor: '#60CA2C'
                    }],
                    // 可使用的方式，主要是对App,h5可进行定义，微信小程序定时时无效(因为仅支持微信支付)
                    use: [0],
                    real: [],
                    selected: 0,
                    countdown: 0,
                    submitText: '确认支付',
                    cancleText: '订单已取消'
                },
                data: {
                    price: '价格',
                    goods: '商品名称',
                    remainder: 60000,
                    // 生成待支付订单时后台返回的,具体地址是啥，参数是啥由后台提供
                    // 唯一支付方式固定为type参数
                    pay_url: {
                        url: '底梦哲提供，王鹏飞进行组装成绝对地址返回',
                        // 底梦哲提接口传参要求，王鹏飞进行组装
                        params: {
                            // 此参数由本工具进行返回，后台不需要传
                            type: '支付方式，由本框架提供',
                            // ...更多参数
                        }
                    },
                    // 由前端去设置，查看订单的详情地址
                    return_url: '订单详情的地址'
                }
            }
        },
        methods: {
            wxPay(order, o) {

                wx.requestPayment({
                    appId: order.appid,
                    timeStamp: order.timeStamp, //创建订单时间戳
                    nonceStr: order.nonceStr,
                    package: order.package, // 订单包
                    signType: order.signType, // 加密方式统一'MD5'
                    paySign: order.sign, // 后台支付签名返回
                    success(res) {
                        // 数据源转换成字符
                        let data = JSON.stringify(o)
                        // 转码传输
                        let value = encodeURIComponent(data)
                        uni.redirectTo({
                            url: '/uni_modules/common-pay/pages/success/success?data=' +
                                value
                        })
                    },
                    fail(res) {
                        try {
                            if (err.errMsg != 'requestPayment:fail cancel') {
                                uni.showToast({
                                    icon: 'error',
                                    title: '支付失败'
                                })
                            }
                        } catch (e) {
                            //TODO handle the exception
                        }
                    }
                })
            },
            convertSecondsToHMS(seconds) {
                var hours = Math.floor(seconds / (60 * 60)); // 计算小时
                seconds %= (60 * 60); // 取余得到不足1小时的秒数

                var minutes = Math.floor(seconds / 60); // 计算分钟
                seconds %= 60; // 取余得到不足1分钟的秒数

                let result = '支付剩余时间 '
                if (hours > 0) {
                    result += (hours < 10 ? '0' + hours : hours) + ":" + (minutes < 10 ? '0' + minutes : minutes) +
                        ":" + (
                            seconds < 10 ? '0' + seconds : seconds)
                } else {
                    // 不显示小时，直接显示 分钟：秒
                    if (minutes > 0) {
                        result += (minutes < 10 ? '0' + minutes : minutes) + ":" + (seconds < 10 ? '0' + seconds :
                            seconds)
                    } else {
                        result += "00:" + (seconds < 10 ? '0' + seconds : seconds)
                    }
                }

                return result
            },
            startCountdown() {
                setInterval(() => {
                    if (this.page.countdown > 0) {
                        this.page.countdown--;
                    } else {
                        // 秒杀倒计时结束的操作，例如弹出提示或触发秒杀请求
                        this.page.submitText = this.page.cancleText
                    }
                }, 1000);
            },
            radioChange: function(evt) {
                this.page.selected = parseInt(evt.detail.value)
            },
            createOrder() {

                if (this.page.cancleText === this.page.submitText) {
                    uni.showToast({
                        icon: 'error',
                        title: this.page.cancleText
                    })
                    return
                }

                // 额外组装type
                let payType = this.page.real[this.page.selected].payType
                this.data.pay_url.params.type = payType

                let o = this.data
                o.color = this.page.real[this.page.selected].btnColor
                o.pay = this.page.real[this.page.selected].pay

                http({
                    url: this.data.pay_url.url,
                    data: this.data.pay_url.params
                }).then((res) => {
                    if ('wxpay' === payType) {
                        this.wxPay(res.data, o)
                    }
                }).catch((err) => {
                    console.log('fail', JSON.stringify(err));
                });
            }
        },
        onLoad(options) {

            try {
                // 跳转携带数据
                this.data = JSON.parse(options.data)
            } catch (e) {
                this.data = JSON.parse(decodeURIComponent(options.data))
            }

            this.page.countdown = this.data.remainder;
            if (this.page.countdown <= 0) {
                this.page.submitText = this.page.cancleText
            } else {
                // 开始倒计时
                this.startCountdown();
            }

            // ToDo h5，app下生效
            // 将来支持配置
            // #ifdef APP || H5

            // #endif
            // 微信下生效
            // #ifdef MP-WEIXIN
            // 微信不支持配置
            this.page.use = [0]
            // #endif

            for (var i = 0; i < this.page.use.length; i++) {
                this.page.real.push(this.page.supports[this.page.use[i]])
            }

            if (this.page.real.length < 1) {
                uni.showModal({
                    content: '未正确配置支付方式',
                    showCancel: false,
                    success: function(res) {
                        if (res.confirm) {
                            uni.navigateBack()
                        }
                    }
                });
                return
            }

            // if (this.page.real.length == 1) {
            // 	// 仅有一个选择时直接调用支付接口
            // 	this.createOrder()
            // }
        }
    }
</script>

<style>
    uni-page-body,
    page {
        background-color: #f1f3f5;
        height: 100%;
    }

    .btn {
        width: calc(100% - 40rpx);
        height: 80rpx;
        line-height: 80rpx;
        text-align: center;
        font-size: 28rpx;
        border-radius: 50rpx;
        margin-bottom: 30rpx;
        margin-top: 30rpx;
        color: #fff;
    }
</style>