package gameserver

import (
	"fmt"

	"gac-hkrpg-go/internal/common"
	goproto "gac-hkrpg-go/protocol/proto"
)

// Request/response layouts follow services/profile.zig and protocol.pb.zig at
// goproto.CommandSourceRevision. CSReq Go spellings below are legacy type names;
// handle resolves only the current CsReq command name, never numeric aliases.
func selectedProfileID(value *uint32, fallback uint32) uint32 {
	if value != nil {
		return *value
	}
	return fallback
}

func saveProfile(player *common.FreesrData, next common.ProfileSettings) error {
	previous := player.Profile
	player.Profile = next
	if err := player.SavePersistentChecked(); err != nil {
		player.Profile = previous
		return err
	}
	return nil
}

func profilePlayer(s *Session) (*common.FreesrData, error) {
	if p := s.JSON(); p != nil {
		return p, nil
	}
	return nil, fmt.Errorf("profile command requires player data")
}

func fillPhoneData(p *common.FreesrData, resource *profileResources, rsp *goproto.GetPhoneDataScRsp) {
	rsp.CurPhoneTheme = selectedProfileID(p.Profile.PhoneTheme, resource.CurrentPhoneTheme)
	rsp.CurPhoneCase = selectedProfileID(p.Profile.PhoneCase, resource.CurrentPhoneCase)
	rsp.CurChatBubble = selectedProfileID(p.Profile.ChatBubble, resource.CurrentChatBubble)
	rsp.OwnedPhoneThemes = resource.PhoneThemes
	rsp.OwnedPhoneCases = resource.PhoneCases
	rsp.OwnedChatBubbles = resource.ChatBubbles
}

func fillPlayerBoard(p *common.FreesrData, resource *profileResources, rsp *goproto.GetPlayerBoardDataScRsp) {
	rsp.CurrentHeadIconId = selectedProfileID(p.Profile.HeadIcon, resource.Icons[0])
	rsp.CurrentPersonalCardId = selectedProfileID(p.Profile.PersonalCard, resource.CurrentPersonalCard)
	rsp.HeadFrameInfo = resource.HeadFrame
	if p.Profile.Signature != nil {
		rsp.Signature = *p.Profile.Signature
	}
	rsp.JJDDEKIAOFC = resource.PersonalCards
	for _, id := range resource.Icons {
		rsp.KNINLDPFLMA = append(rsp.KNINLDPFLMA, &goproto.HeadIconData{Id: id})
	}
	rsp.NBIEJKLENOB = &goproto.DisplayAvatarVec{IsDisplay: true}
	if p.Profile.IsDisplay != nil {
		rsp.NBIEJKLENOB.IsDisplay = *p.Profile.IsDisplay
	}
	for _, slot := range p.SortedLineupKeys() {
		id := p.Lineups[slot]
		if p.Avatars[id] != nil {
			rsp.KJAABDABLJJ = append(rsp.KJAABDABLJJ, id)
			rsp.NBIEJKLENOB.DisplayAvatarList = append(rsp.NBIEJKLENOB.DisplayAvatarList, &goproto.DisplayAvatarData{AvatarId: id, Pos: slot})
		}
	}
	if p.Profile.DisplayAvatars != nil {
		rsp.NBIEJKLENOB.DisplayAvatarList = nil
		for _, av := range *p.Profile.DisplayAvatars {
			rsp.NBIEJKLENOB.DisplayAvatarList = append(rsp.NBIEJKLENOB.DisplayAvatarList, &goproto.DisplayAvatarData{AvatarId: av.AvatarID, Pos: av.Pos})
		}
	}
	if p.Profile.AssistAvatars != nil {
		rsp.KJAABDABLJJ = append([]uint32{}, (*p.Profile.AssistAvatars)...)
	}
}

func init() {
	handle("SelectPhoneTheme", func(s *Session, req *goproto.SelectPhoneThemeCsReq, rsp *goproto.SelectPhoneThemeScRsp) error {
		p, err := profilePlayer(s)
		if err != nil {
			return err
		}
		resource, err := loadProfileResources()
		if err != nil {
			return err
		}
		if req.ThemeId != resource.CurrentPhoneTheme && !containsU32(resource.PhoneThemes, req.ThemeId) {
			rsp.Retcode = uint32(goproto.Retcode_RET_ITEM_NOT_EXIST)
			return nil
		}
		next := p.Profile
		next.PhoneTheme = &req.ThemeId
		if err := saveProfile(p, next); err != nil {
			return err
		}
		rsp.CurPhoneTheme = req.ThemeId
		return nil
	})
	handle("SelectPhoneCase", func(s *Session, req *goproto.SelectPhoneCaseCSReq, rsp *goproto.SelectPhoneCaseScRsp) error {
		p, err := profilePlayer(s)
		if err != nil {
			return err
		}
		resource, err := loadProfileResources()
		if err != nil {
			return err
		}
		if !containsU32(resource.PhoneCases, req.PhoneCaseId) {
			rsp.Retcode = uint32(goproto.Retcode_RET_ITEM_NOT_EXIST)
			return nil
		}
		next := p.Profile
		next.PhoneCase = &req.PhoneCaseId
		if err := saveProfile(p, next); err != nil {
			return err
		}
		rsp.CurPhoneCase = req.PhoneCaseId
		return nil
	})
	handle("SelectChatBubble", func(s *Session, req *goproto.SelectChatBubbleCsReq, rsp *goproto.SelectChatBubbleScRsp) error {
		p, err := profilePlayer(s)
		if err != nil {
			return err
		}
		resource, err := loadProfileResources()
		if err != nil {
			return err
		}
		if req.BubbleId != resource.CurrentChatBubble && !containsU32(resource.ChatBubbles, req.BubbleId) {
			rsp.Retcode = uint32(goproto.Retcode_RET_ITEM_NOT_EXIST)
			return nil
		}
		next := p.Profile
		next.ChatBubble = &req.BubbleId
		if err := saveProfile(p, next); err != nil {
			return err
		}
		rsp.CurChatBubble = req.BubbleId
		return nil
	})
	handle("SetHeadIcon", func(s *Session, req *goproto.SetHeadIconCsReq, rsp *goproto.SetHeadIconScRsp) error {
		p, err := profilePlayer(s)
		if err != nil {
			return err
		}
		resource, err := loadProfileResources()
		if err != nil {
			return err
		}
		if !containsU32(resource.Icons, req.Id) {
			rsp.Retcode = uint32(goproto.Retcode_RET_ITEM_NOT_EXIST)
			return nil
		}
		next := p.Profile
		next.HeadIcon = &req.Id
		if err := saveProfile(p, next); err != nil {
			return err
		}
		rsp.CurrentHeadIconId = req.Id
		return nil
	})
	handle("SetPersonalCard", func(s *Session, req *goproto.SetPersonalCardCSReq, rsp *goproto.SetPersonalCardScRsp) error {
		p, err := profilePlayer(s)
		if err != nil {
			return err
		}
		resource, err := loadProfileResources()
		if err != nil {
			return err
		}
		if !containsU32(resource.PersonalCards, req.Id) {
			rsp.Retcode = uint32(goproto.Retcode_RET_ITEM_NOT_EXIST)
			return nil
		}
		next := p.Profile
		next.PersonalCard = &req.Id
		if err := saveProfile(p, next); err != nil {
			return err
		}
		rsp.CurrentPersonalCardId = req.Id
		return nil
	})
	handle("SetSignature", func(s *Session, req *goproto.SetSignatureCsReq, rsp *goproto.SetSignatureScRsp) error {
		p, err := profilePlayer(s)
		if err != nil {
			return err
		}
		next := p.Profile
		next.Signature = &req.Signature
		if err := saveProfile(p, next); err != nil {
			return err
		}
		rsp.Signature = req.Signature
		return nil
	})
	handle("SetIsDisplayAvatarInfo", func(s *Session, req *goproto.SetIsDisplayAvatarInfoCsReq, rsp *goproto.SetIsDisplayAvatarInfoScRsp) error {
		p, err := profilePlayer(s)
		if err != nil {
			return err
		}
		next := p.Profile
		next.IsDisplay = &req.IsDisplay
		if err := saveProfile(p, next); err != nil {
			return err
		}
		rsp.IsDisplay = req.IsDisplay
		return nil
	})
	handle("SetDisplayAvatar", func(s *Session, req *goproto.SetDisplayAvatarCsReq, rsp *goproto.SetDisplayAvatarScRsp) error {
		p, err := profilePlayer(s)
		if err != nil {
			return err
		}
		list := make([]common.ProfileAvatar, 0, len(req.DisplayAvatarList))
		positions, avatars := map[uint32]bool{}, map[uint32]bool{}
		for _, av := range req.DisplayAvatarList {
			if av == nil || p.Avatars[av.AvatarId] == nil || positions[av.Pos] || avatars[av.AvatarId] {
				rsp.Retcode = uint32(goproto.Retcode_RET_AVATAR_NOT_EXIST)
				return nil
			}
			positions[av.Pos], avatars[av.AvatarId] = true, true
			list = append(list, common.ProfileAvatar{AvatarID: av.AvatarId, Pos: av.Pos})
		}
		next := p.Profile
		next.DisplayAvatars = &list
		if err := saveProfile(p, next); err != nil {
			return err
		}
		rsp.DisplayAvatarList = req.DisplayAvatarList
		return nil
	})
	handle("SetAssistAvatar", func(s *Session, req *goproto.SetAssistAvatarCsReq, rsp *goproto.SetAssistAvatarScRsp) error {
		p, err := profilePlayer(s)
		if err != nil {
			return err
		}
		list := append([]uint32{}, req.AvatarIdList...)
		if req.AvatarId != 0 && !containsU32(list, req.AvatarId) {
			list = append(list, req.AvatarId)
		}
		seen := map[uint32]bool{}
		for _, id := range list {
			if p.Avatars[id] == nil || seen[id] {
				rsp.Retcode = uint32(goproto.Retcode_RET_AVATAR_NOT_EXIST)
				return nil
			}
			seen[id] = true
		}
		next := p.Profile
		next.AssistAvatars = &list
		if err := saveProfile(p, next); err != nil {
			return err
		}
		rsp.AvatarId, rsp.AvatarIdList = req.AvatarId, req.AvatarIdList
		return nil
	})
}