package service_user

import (
	"log/slog"
	"net/url"
	"nixcn-cms/data"
	"nixcn-cms/internal/cryptography"
	"nixcn-cms/internal/exception"
	"nixcn-cms/service/shared"
	"unicode/utf8"
)

func (self *UserServiceImpl) UpdateUserInfo(payload *UserInfoPayload) (result *UserInfoResult) {
	var err error

	updates := make(map[string]any)

	if payload.Data.Username != nil {
		val := *payload.Data.Username
		if val != "" {
			if len(*payload.Data.Username) < 5 || len(*payload.Data.Username) >= 255 {
				execption := new(exception.Builder).
					SetStatus(exception.StatusUser).
					SetService(exception.ServiceUser).
					SetType(exception.TypeCommon).
					SetOriginal(exception.CommonErrorInvalidInput)

				result = &UserInfoResult{
					Common: shared.CommonResult{
						HttpCode:  400,
						Exception: execption,
					},
					Data: nil,
				}

				return
			}
		}
		updates["username"] = *payload.Data.Username
	}

	slog.Debug("DataNickname", slog.Any("DataNickName", payload.Data.Nickname))

	if payload.Data.Nickname != nil {
		if utf8.RuneCountInString(*payload.Data.Nickname) > 24 {
			execption := new(exception.Builder).
				SetStatus(exception.StatusUser).
				SetService(exception.ServiceUser).
				SetType(exception.TypeCommon).
				SetOriginal(exception.CommonErrorInvalidInput)

			result = &UserInfoResult{
				Common: shared.CommonResult{
					HttpCode:  400,
					Exception: execption,
				},
				Data: nil,
			}

			return
		}
		updates["nickname"] = *payload.Data.Nickname
	}

	if payload.Data.Subtitle != nil {
		if utf8.RuneCountInString(*payload.Data.Subtitle) > 32 {
			execption := new(exception.Builder).
				SetStatus(exception.StatusUser).
				SetService(exception.ServiceUser).
				SetEndpoint(exception.EndpointUserServiceUpdate).
				SetType(exception.TypeCommon).
				SetOriginal(exception.CommonErrorInvalidInput).
				SetError(nil).
				Throw(payload.Context)

			result = &UserInfoResult{
				Common: shared.CommonResult{
					HttpCode:  400,
					Exception: execption,
				},
				Data: nil,
			}

			return
		}
		updates["subtitle"] = *payload.Data.Subtitle
	}

	if payload.Data.Avatar != nil {
		_, err := url.ParseRequestURI(*payload.Data.Avatar)
		if err != nil {
			execption := new(exception.Builder).
				SetStatus(exception.StatusUser).
				SetService(exception.ServiceUser).
				SetEndpoint(exception.EndpointUserServiceUpdate).
				SetType(exception.TypeCommon).
				SetOriginal(exception.CommonErrorInvalidInput).
				SetError(err).
				Throw(payload.Context)

			result = &UserInfoResult{
				Common: shared.CommonResult{
					HttpCode:  400,
					Exception: execption,
				},
				Data: nil,
			}

			return
		}
		updates["avatar"] = *payload.Data.Avatar
	}

	if payload.Data.Bio != nil {
		val := *payload.Data.Bio
		if val != "" {
			if !cryptography.IsBase64Std(*payload.Data.Bio) {
				execption := new(exception.Builder).
					SetStatus(exception.StatusUser).
					SetService(exception.ServiceUser).
					SetEndpoint(exception.EndpointUserServiceUpdate).
					SetType(exception.TypeCommon).
					SetOriginal(exception.CommonErrorInvalidInput).
					SetError(nil).
					Throw(payload.Context)

				result = &UserInfoResult{
					Common: shared.CommonResult{
						HttpCode:  400,
						Exception: execption,
					},
					Data: nil,
				}

				return
			}
		}
		updates["bio"] = *payload.Data.Bio
	}

	if payload.Data.AllowPublic != nil {
		updates["allow_public"] = *payload.Data.AllowPublic
	}

	if len(updates) == 0 {
		exception := new(exception.Builder).
			SetStatus(exception.StatusUser).
			SetService(exception.ServiceUser).
			SetEndpoint(exception.EndpointUserServiceUpdate).
			SetType(exception.TypeCommon).
			SetOriginal(exception.CommonSuccess).
			SetError(nil).
			Throw(payload.Context)

		result = &UserInfoResult{
			Common: shared.CommonResult{
				HttpCode:  200,
				Exception: exception,
			},
			Data: nil,
		}

		return
	}

	err = new(data.User).UpdateByUserID(payload.Context, &payload.UserId, updates)
	if err != nil {
		exception := new(exception.Builder).
			SetStatus(exception.StatusServer).
			SetService(exception.ServiceUser).
			SetEndpoint(exception.EndpointUserServiceUpdate).
			SetType(exception.TypeCommon).
			SetOriginal(exception.CommonErrorDatabase).
			SetError(err).
			Throw(payload.Context)

		result = &UserInfoResult{
			Common: shared.CommonResult{
				HttpCode:  500,
				Exception: exception,
			},
			Data: nil,
		}

		return
	}

	exception := new(exception.Builder).
		SetStatus(exception.StatusUser).
		SetService(exception.ServiceUser).
		SetEndpoint(exception.EndpointUserServiceUpdate).
		SetType(exception.TypeCommon).
		SetOriginal(exception.CommonSuccess).
		SetError(nil).
		Throw(payload.Context)

	result = &UserInfoResult{
		Common: shared.CommonResult{
			HttpCode:  200,
			Exception: exception,
		},
		Data: nil,
	}

	return
}