// Copyright 2022 Liuxiangchao iwind.liu@gmail.com. All rights reserved. Official site: https://goedge.cn .

package plans

import (
	"encoding/json"
	"fmt"
	"github.com/TeaOSLab/EdgeCommon/pkg/rpc/pb"
	"github.com/TeaOSLab/EdgeCommon/pkg/userconfigs"
	"github.com/TeaOSLab/EdgeUser/internal/web/actions/actionutils"
	"github.com/TeaOSLab/EdgeUser/internal/web/actions/default/finance/financeutils"
	"github.com/iwind/TeaGo/actions"
	"github.com/iwind/TeaGo/maps"
	timeutil "github.com/iwind/TeaGo/utils/time"
	"time"
)

type BuyAction struct {
	actionutils.ParentAction
}

func (this *BuyAction) Init() {
	this.Nav("", "", "")
}

func (this *BuyAction) RunGet(params struct {
	PlanId int64
}) {
	planResp, err := this.RPC().NSPlanRPC().FindNSPlan(this.UserContext(), &pb.FindNSPlanRequest{NsPlanId: params.PlanId})
	if err != nil {
		this.ErrorPage(err)
		return
	}

	var plan = planResp.NsPlan
	if plan == nil || !plan.IsOn {
		this.NotFound("nsPlan", params.PlanId)
		return
	}

	this.Data["plan"] = maps.Map{
		"id":           plan.Id,
		"name":         plan.Name,
		"monthlyPrice": fmt.Sprintf("%.2f", plan.MonthlyPrice),
		"yearlyPrice":  fmt.Sprintf("%.2f", plan.YearlyPrice),
		"monthFrom":    timeutil.Format("Y-m-d"),
		"monthTo":      timeutil.Format("Y-m-d", time.Now().AddDate(0, 1, 0)),
		"yearFrom":     timeutil.Format("Y-m-d"),
		"yearTo":       timeutil.Format("Y-m-d", time.Now().AddDate(1, 0, 0)),
	}

	this.Show()
}

func (this *BuyAction) RunPost(params struct {
	PlanId     int64
	Period     string
	MethodCode string

	Must *actions.Must
	CSRF *actionutils.CSRF
}) {
	planResp, err := this.RPC().NSPlanRPC().FindNSPlan(this.UserContext(), &pb.FindNSPlanRequest{NsPlanId: params.PlanId})
	if err != nil {
		this.ErrorPage(err)
		return
	}

	var plan = planResp.NsPlan
	if plan == nil || !plan.IsOn {
		this.NotFound("nsPlan", params.PlanId)
		return
	}

	var price float64
	var dayFrom = timeutil.Format("Ymd")
	var dayTo = dayFrom
	switch params.Period {
	case "yearly":
		price = float64(plan.YearlyPrice)
		dayTo = timeutil.Format("Ymd", time.Now().AddDate(1, 0, 0))
	case "monthly":
		price = float64(plan.MonthlyPrice)
		dayTo = timeutil.Format("Ymd", time.Now().AddDate(0, 1, 0))
	default:
		this.Fail("请输入正确的付费周期")
		return
	}

	// 用户是否已经购买了套餐
	userPlanResp, err := this.RPC().NSUserPlanRPC().FindNSUserPlan(this.UserContext(), &pb.FindNSUserPlanRequest{})
	if err != nil {
		this.ErrorPage(err)
		return
	}

	if userPlanResp.NsUserPlan != nil && userPlanResp.NsUserPlan.DayTo >= timeutil.Format("Ymd") {
		this.Fail("当前已经有一个生效的套餐，无法重复购买")
	}

	// 使用余额购买
	this.Data["success"] = false
	this.Data["orderCode"] = ""
	if params.MethodCode == "@balance" {
		balance, err := financeutils.FindUserBalance(this.UserContext())
		if err != nil {
			this.ErrorPage(err)
			return
		}
		if price > balance {
			this.Fail("当前余额不足，需要：" + fmt.Sprintf("%.2f元", price) + "，现有：" + fmt.Sprintf("%.2f元", balance) + " ，请充值后再试")
			return
		}

		// 直接购买
		_, err = this.RPC().NSUserPlanRPC().BuyNSUserPlan(this.UserContext(), &pb.BuyNSUserPlanRequest{
			UserId: this.UserId(),
			PlanId: plan.Id,
			Period: params.Period,
		})
		if err != nil {
			this.ErrorPage(err)
			return
		}

		this.Data["success"] = true
		this.Success()
		return
	}

	// 生成订单
	var orderParams = &userconfigs.OrderTypeBuyNSPlanParams{
		PlanId:  plan.Id,
		DayFrom: dayFrom,
		DayTo:   dayTo,
		Period:  params.Period,
	}
	orderParamsJSON, err := json.Marshal(orderParams)
	if err != nil {
		this.ErrorPage(err)
		return
	}

	resp, err := this.RPC().UserOrderRPC().CreateUserOrder(this.UserContext(), &pb.CreateUserOrderRequest{
		Type:            userconfigs.OrderTypeBuyNSPlan,
		OrderMethodCode: params.MethodCode,
		Amount:          price,
		ParamsJSON:      orderParamsJSON,
	})
	if err != nil {
		this.ErrorPage(err)
		return
	}

	this.Data["orderCode"] = resp.Code

	this.Success()
}