package player

import (
	"f1-game/internal/code"
	"f1-game/internal/data"
	nameLocal "f1-game/internal/name/local"
	nameRemote "f1-game/internal/name/remote"
	"f1-game/internal/pb"
	"f1-game/internal/types"
	"f1-game/nodes/game/player/asset"
	ao "f1-game/nodes/game/player/asset/origin"
	"f1-game/nodes/game/player/item"

	cproto "github.com/cherry-game/cherry/net/proto"
)

func (p *actorPlayer) initItem() {
	p.Local().Register(nameLocal.Player_ItemUse, p.itemUse)
	p.Local().Register(nameLocal.Player_ItemSale, p.itemSale)
	p.Local().Register(nameLocal.Player_ItemCraft, p.itemCraft)
	p.Local().Register(nameLocal.Player_ItemMedicineUse, p.itemMedicineUse)
}

func (p *actorPlayer) itemUse(session *cproto.Session, req *pb.ItemUseRequest) {
	if req.UseNum < 1 {
		p.ResponseCode(session, code.IllegalArgument)
		return
	}

	// 使用的必须是宝箱
	chestRow, found := data.ItemChest.GetByID(req.ItemID)
	if !found {
		p.Warn("[Chest] config not found. id = %d", req.ItemID)
		p.ResponseCode(session, code.ConfigNotFound_ItemChest)
		return
	}

	// 超出单次使用数量上限
	if req.UseNum > data.Const.ItemChestSingleLimit {
		p.ResponseCode(session, code.ItemUseOnceLimit)
		return
	}

	// 消耗的道具是否足够
	if errCode := asset.Service().Enough(p.playerID, req.ItemID, req.UseNum); code.IsFail(errCode) {
		p.ResponseCode(session, errCode)
		return
	}

	// 使用道具，获取添加的资源
	addAssets, errCode := item.Service().Use(p.playerID, req, chestRow.DropPoolID, chestRow.UseType)
	if code.IsFail(errCode) {
		p.ResponseCode(session, errCode)
		return
	}

	// 检查将要添加的资产
	errCode = asset.Service().Check(addAssets)
	if code.IsFail(errCode) {
		p.ResponseCode(session, errCode)
		return
	}

	// 先扣除消耗道具
	_, errCode = asset.Service().Sub(p.playerID, req.ItemID, req.UseNum, ao.None)
	if code.IsFail(errCode) {
		p.ResponseCode(session, code.ItemDecreaseFail)
		return
	}

	// 添加资源
	retAssets, errCode := asset.Service().Adds(p.playerID, addAssets, ao.UseItem, true)
	if code.IsFail(errCode) {
		p.ResponseCode(session, errCode)
		return
	}

	// 返回奖励列表(用于展示)
	rsp := retAssets.ToAssetListProto()

	p.Response(session, &rsp)

	p.Debug("[itemUse] result. req = %v, rewards = %v", req, rsp.List)
}

// itemSale 道具出售
func (p *actorPlayer) itemSale(session *cproto.Session, req *pb.Asset) {
	if req.Num < 1 {
		req.Num = 1
	}

	itemRow, found := data.Item.GetByID(req.Id)
	if !found {
		p.ResponseCode(session, code.ConfigNotFound_Item)
		return
	}

	if !itemRow.CanSale || len(itemRow.SalePrice) < 1 {
		p.ResponseCode(session, code.ItemNotForSell)
		return
	}

	_, errCode := asset.Service().Sub(p.playerID, req.Id, req.Num, ao.None)
	if code.IsFail(errCode) {
		p.ResponseCode(session, errCode)
		return
	}

	rewards := itemRow.GetItemSalePrice(req.Num)
	retAssets, errCode := asset.Service().Adds(p.playerID, rewards, ao.None, true)
	if code.IsFail(errCode) {
		p.ResponseCode(session, errCode)
		return
	}

	rsp := retAssets.ToAssetListProto()

	p.Response(session, &rsp)
}

// itemCraft 道具合成
func (p *actorPlayer) itemCraft(session *cproto.Session, req *pb.I32I32List) {
	list := req.List
	if len(list) < 1 {
		p.ResponseCode(session, code.ItemCraftEmpty)
		return
	}

	var (
		rewards   = types.Assets{}
		tempCosts = map[int32]int64{} // 暂存消耗，key为道具ID，value为消耗数量
		playerID  = p.playerID
	)

	for _, kv := range list {
		var (
			itemID   = kv.Key
			craftNum = int64(kv.Value)
		)

		if craftNum < 1 {
			p.ResponseCode(session, code.IllegalArgument)
			return
		}

		// 计算合成路径和所需材料，直接修改tempCosts
		errCode := p.calculateCraftCostsWithTemp(playerID, itemID, craftNum, tempCosts)
		if code.IsFail(errCode) {
			p.ResponseCode(session, errCode)
			return
		}

		// 添加到奖励列表
		rewards.Add(itemID, craftNum)
	}

	// 将暂存的消耗转换为Assets
	costs := types.Assets{}
	for itemID, num := range tempCosts {
		costs.Add(itemID, num)
	}

	// 扣除消耗道具
	_, errCode := asset.Service().Subs(playerID, costs, ao.ItemCraftCost)
	if code.IsFail(errCode) {
		p.ResponseCode(session, errCode)
		return
	}

	// 添加合成材料
	_, errCode = asset.Service().Adds(playerID, rewards, ao.ItemCraft, true)

	p.ResponseCode(session, errCode)
}

// calculateCraftCostsWithTemp 简化版计算合成所需的所有基础材料，直接修改tempCosts
func (p *actorPlayer) calculateCraftCostsWithTemp(playerID int64, itemID int32, needNum int64, tempCosts map[int32]int64) int32 {
	// 直接计算需要消耗的材料
	var (
		currentItemID  = itemID
		currentNeedNum = needNum
	)

	for {
		// 检查该道具是否可以合成
		itemCraftRow, found := data.ItemCraft.GetByID(currentItemID)
		if !found {
			return code.ConfigNotFound_ItemCraft
		}

		// 没有合成消耗不能合成
		if itemCraftRow.CostItemID <= 0 {
			return code.ItemCraftNotCan
		}

		// 不能合成自己
		if itemCraftRow.CostItemID == currentItemID {
			return code.ItemCraftSelf
		}

		// 获取当前道具的库存，减去已经暂存的消耗
		originalHasNum := asset.Service().Get(playerID, itemCraftRow.CostItemID)
		tempConsumed := tempCosts[itemCraftRow.CostItemID]
		hasNum := originalHasNum - tempConsumed

		// 如果库存不足，直接返回错误
		if hasNum < 0 {
			return code.ItemNotEnough
		}

		// 计算可以合成的数量
		canCraftNum := hasNum / itemCraftRow.CostItemNum

		// 计算总需要消耗的材料数量
		totalNeedNum := currentNeedNum * itemCraftRow.CostItemNum

		// 如果当前材料足够，直接添加到tempCosts中并结束
		if canCraftNum >= currentNeedNum {
			tempCosts[itemCraftRow.CostItemID] += totalNeedNum
			return code.OK
		}

		// 当前材料不足，需要合成更多
		// 1. 先使用现有的材料
		if canCraftNum > 0 {
			useNum := canCraftNum * itemCraftRow.CostItemNum
			tempCosts[itemCraftRow.CostItemID] += useNum
		}

		// 2. 计算还需要合成的材料数量，并继续向下查找
		remainingNeed := currentNeedNum - canCraftNum
		if remainingNeed > 0 {
			// 继续处理下一级合成
			currentItemID = itemCraftRow.CostItemID
			currentNeedNum = remainingNeed * itemCraftRow.CostItemNum
		} else {
			// 没有剩余需要，结束
			return code.OK
		}
	}
}

// 队伍药品使用
func (p *actorPlayer) itemMedicineUse(session *cproto.Session, req *pb.I32I32) {
	var (
		teamID      = req.Key
		medicineID  = req.Value
		itemTable   = p.ItemTable()
		playerTable = p.PlayerTable()
	)

	medicineRow, found := data.ItemMedicine.GetByMedicineID(medicineID)
	if !found {
		p.ResponseCode(session, code.ConfigNotFound_Medicine)
		return
	}

	// 检测道具是否足够
	errCode := asset.Service().Enough(p.playerID, medicineID, 1)
	if code.IsFail(errCode) {
		p.ResponseCode(session, errCode)
		return
	}

	curUseNum, exist := itemTable.MedicineMap[medicineID]
	if !exist {
		curUseNum = 0
	}

	// 使用次数已达上限
	if curUseNum >= medicineRow.DayUseNumLimit {
		p.ResponseCode(session, code.ItemUseNumLimit)
		return
	}

	// 调用map使用药品
	useReq := &pb.I32I32{
		Key:   teamID,
		Value: medicineID,
	}
	errCode = p.mapPlayerCallWait(playerTable.Map.MapNodeID, nameRemote.MapPlayer_UseMedicine, useReq)
	if code.IsFail(errCode) {
		p.ResponseCode(session, errCode)
		return
	}

	// 扣除资源
	asset.Service().Sub(p.playerID, medicineID, 1, ao.ItemMedicineUse)

	curUseNum++
	itemTable.MedicineMap[medicineID] = curUseNum

	itemTable.Save2Queue()

	resp := &pb.I32I32{
		Key:   medicineID,
		Value: curUseNum,
	}

	p.Response(session, resp)
}