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

package fee

import (
	"encoding/json"
	"github.com/TeaOSLab/EdgeCommon/pkg/rpc/pb"
	"github.com/TeaOSLab/EdgeCommon/pkg/userconfigs"
	"github.com/TeaOSLab/EdgeUser/internal/configloaders"
	"github.com/TeaOSLab/EdgeUser/internal/utils/numberutils"
	"github.com/TeaOSLab/EdgeUser/internal/web/actions/actionutils"
	"github.com/iwind/TeaGo/lists"
	"github.com/iwind/TeaGo/maps"
)

type PricesAction struct {
	actionutils.ParentAction
}

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

func (this *PricesAction) RunGet(params struct{}) {
	config, err := configloaders.LoadCacheableUserPriceConfig()
	if err != nil {
		this.ErrorPage(err)
		return
	}

	if config == nil || !config.IsOn || !config.UserUI.ShowPrices {
		this.WriteString("管理员未开启此配置")
		return
	}

	this.Data["showPrices"] = true

	// 初始化
	this.Data["regions"] = []maps.Map{}
	this.Data["bandwidthItems"] = []maps.Map{}
	this.Data["trafficItems"] = []maps.Map{}

	var bandwidthItemIds = []int64{}
	var trafficItemIds = []int64{}

	// 带宽价格
	var supportRegions = false
	var supportBandwidth = false
	if (config.UserCanChangePriceType || config.DefaultPriceType == userconfigs.PriceTypeBandwidth) && config.DefaultBandwidthPriceConfig != nil {
		supportBandwidth = true
		this.Data["bandwidthPrices"] = maps.Map{
			"percentile":     config.DefaultBandwidthPriceConfig.Percentile,
			"base":           config.DefaultBandwidthPriceConfig.Base,
			"ranges":         config.DefaultBandwidthPriceConfig.Ranges,
			"supportRegions": config.DefaultBandwidthPriceConfig.SupportRegions,
		}

		if config.DefaultBandwidthPriceConfig.SupportRegions {
			supportRegions = true

			bandwidthItemIds, err = this.bandwidthPriceItems()
			if err != nil {
				this.ErrorPage(err)
				return
			}
		}
	}
	this.Data["supportBandwidth"] = supportBandwidth

	// 流量价格
	var supportTraffic = false
	if (config.UserCanChangePriceType || config.DefaultPriceType == userconfigs.PriceTypeTraffic) && config.DefaultTrafficPriceConfig != nil {
		supportTraffic = true
		this.Data["trafficPrices"] = maps.Map{
			"base":           config.DefaultTrafficPriceConfig.Base,
			"ranges":         config.DefaultTrafficPriceConfig.Ranges,
			"supportRegions": config.DefaultTrafficPriceConfig.SupportRegions,
		}
		if config.DefaultTrafficPriceConfig.SupportRegions {
			supportRegions = true

			trafficItemIds, err = this.trafficPriceItems()
			if err != nil {
				this.ErrorPage(err)
				return
			}
		}
	}
	this.Data["supportTraffic"] = supportTraffic

	// 支付方式
	this.Data["priceType"] = config.DefaultPriceType

	// 区域
	if supportRegions {
		// 所有区域
		regionsResp, err := this.RPC().NodeRegionRPC().FindAllAvailableNodeRegions(this.UserContext(), &pb.FindAllAvailableNodeRegionsRequest{})
		if err != nil {
			this.ErrorPage(err)
			return
		}
		var regionMaps = []maps.Map{}
		for _, region := range regionsResp.NodeRegions {
			var pricesMap = map[int64]float32{}
			if len(region.PricesJSON) > 0 {
				err = json.Unmarshal(region.PricesJSON, &pricesMap)
				if err != nil {
					this.ErrorPage(err)
					return
				}
			}

			// 跳过没有设置的
			if len(pricesMap) == 0 {
				continue
			}

			// 支持的计费方式
			var regionSupportBandwidth = false
			var regionSupportTraffic = false

			for itemId := range pricesMap {
				if lists.ContainsInt64(bandwidthItemIds, itemId) {
					regionSupportBandwidth = true
				}
				if lists.ContainsInt64(trafficItemIds, itemId) {
					regionSupportTraffic = true
				}
			}

			if regionSupportBandwidth || regionSupportTraffic {
				regionMaps = append(regionMaps, maps.Map{
					"id":               region.Id,
					"isOn":             region.IsOn,
					"name":             region.Name,
					"prices":           pricesMap,
					"supportBandwidth": regionSupportBandwidth,
					"supportTraffic":   regionSupportTraffic,
				})
			}
		}
		this.Data["regions"] = regionMaps
	}

	this.Show()
}

func (this *PricesAction) bandwidthPriceItems() (itemIds []int64, err error) {
	// 所有价格项目
	itemsResp, err := this.RPC().NodePriceItemRPC().FindAllAvailableNodePriceItems(this.UserContext(), &pb.FindAllAvailableNodePriceItemsRequest{Type: userconfigs.PriceTypeBandwidth})
	if err != nil {
		return nil, err
	}
	var itemMaps = []maps.Map{}
	for _, item := range itemsResp.NodePriceItems {
		itemIds = append(itemIds, item.Id)

		var maxSize string
		if item.BitsTo == 0 {
			maxSize = "∞"
		} else {
			maxSize = numberutils.FormatBits(item.BitsTo)
		}

		itemMaps = append(itemMaps, maps.Map{
			"id":      item.Id,
			"name":    item.Name,
			"minSize": numberutils.FormatBits(item.BitsFrom),
			"maxSize": maxSize,
		})
	}
	this.Data["bandwidthItems"] = itemMaps

	return itemIds, nil
}

func (this *PricesAction) trafficPriceItems() (itemIds []int64, err error) {
	// 所有价格项目
	itemsResp, err := this.RPC().NodePriceItemRPC().FindAllAvailableNodePriceItems(this.UserContext(), &pb.FindAllAvailableNodePriceItemsRequest{Type: userconfigs.PriceTypeTraffic})
	if err != nil {
		return nil, err
	}
	var itemMaps = []maps.Map{}
	for _, item := range itemsResp.NodePriceItems {
		itemIds = append(itemIds, item.Id)

		var maxSize string
		if item.BitsTo == 0 {
			maxSize = "∞"
		} else {
			maxSize = numberutils.FormatBytes(item.BitsTo / 8)
		}

		itemMaps = append(itemMaps, maps.Map{
			"id":      item.Id,
			"name":    item.Name,
			"minSize": numberutils.FormatBytes(item.BitsFrom / 8),
			"maxSize": maxSize,
		})
	}
	this.Data["trafficItems"] = itemMaps

	return itemIds, nil
}