new-api/service/midjourney.go

package service

import (
	"one-api/constant"
	"one-api/dto"
	relayconstant "one-api/relay/constant"
	"strconv"
	"strings"
)

func CoverActionToModelName(mjAction string) string {
	modelName := "mj_" + strings.ToLower(mjAction)
	return modelName
}

func GetMjRequestModel(relayMode int, midjRequest *dto.MidjourneyRequest) (string, *dto.MidjourneyResponse, bool) {
	action := ""
	if relayMode == relayconstant.RelayModeMidjourneyAction {
		// plus request
		err := CoverPlusActionToNormalAction(midjRequest)
		if err != nil {
			return "", err, false
		}
		action = midjRequest.Action
	} else {
		switch relayMode {
		case relayconstant.RelayModeMidjourneyImagine:
			action = constant.MjActionImagine
		case relayconstant.RelayModeMidjourneyDescribe:
			action = constant.MjActionDescribe
		case relayconstant.RelayModeMidjourneyBlend:
			action = constant.MjActionBlend
		case relayconstant.RelayModeMidjourneyShorten:
			action = constant.MjActionShorten
		case relayconstant.RelayModeMidjourneyChange:
			action = midjRequest.Action
		case relayconstant.RelayModeMidjourneyModal:
			action = constant.MjActionInPaint
		case relayconstant.RelayModeMidjourneySimpleChange:
			params := ConvertSimpleChangeParams(midjRequest.Content)
			if params == nil {
				return "", MidjourneyErrorWrapper(constant.MjRequestError, "invalid_request"), false
			}
			action = params.Action
		case relayconstant.RelayModeMidjourneyTaskFetch, relayconstant.RelayModeMidjourneyTaskFetchByCondition, relayconstant.RelayModeMidjourneyNotify:
			return "", nil, true
		default:
			return "", MidjourneyErrorWrapper(constant.MjRequestError, "unknown_action"), false
		}
	}
	modelName := CoverActionToModelName(action)
	return modelName, nil, true
}

func CoverPlusActionToNormalAction(midjRequest *dto.MidjourneyRequest) *dto.MidjourneyResponse {
	// "customId": "MJ::JOB::upsample::2::3dbbd469-36af-4a0f-8f02-df6c579e7011"
	customId := midjRequest.CustomId
	if customId == "" {
		return MidjourneyErrorWrapper(constant.MjRequestError, "custom_id_is_required")
	}
	splits := strings.Split(customId, "::")
	var action string
	if splits[1] == "JOB" {
		action = splits[2]
	} else {
		action = splits[1]
	}

	if action == "" {
		return MidjourneyErrorWrapper(constant.MjRequestError, "unknown_action")
	}
	if strings.Contains(action, "upsample") {
		index, err := strconv.Atoi(splits[3])
		if err != nil {
			return MidjourneyErrorWrapper(constant.MjRequestError, "index_parse_failed")
		}
		midjRequest.Index = index
		midjRequest.Action = constant.MjActionUpscale
	} else if strings.Contains(action, "variation") {
		midjRequest.Index = 1
		if action == "variation" {
			index, err := strconv.Atoi(splits[3])
			if err != nil {
				return MidjourneyErrorWrapper(constant.MjRequestError, "index_parse_failed")
			}
			midjRequest.Index = index
			midjRequest.Action = constant.MjActionVariation
		} else if action == "low_variation" {
			midjRequest.Action = constant.MjActionLowVariation
		} else if action == "high_variation" {
			midjRequest.Action = constant.MjActionHighVariation
		}
	} else if strings.Contains(action, "pan") {
		midjRequest.Action = constant.MjActionPan
		midjRequest.Index = 1
	} else if action == "Outpaint" || action == "CustomZoom" {
		midjRequest.Action = constant.MjActionZoom
		midjRequest.Index = 1
	} else if action == "Inpaint" {
		midjRequest.Action = constant.MjActionInPaintPre
		midjRequest.Index = 1
	} else {
		return MidjourneyErrorWrapper(constant.MjRequestError, "unknown_action")
	}
	return nil
}

func ConvertSimpleChangeParams(content string) *dto.MidjourneyRequest {
	split := strings.Split(content, " ")
	if len(split) != 2 {
		return nil
	}

	action := strings.ToLower(split[1])
	changeParams := &dto.MidjourneyRequest{}
	changeParams.TaskId = split[0]

	if action[0] == 'u' {
		changeParams.Action = "UPSCALE"
	} else if action[0] == 'v' {
		changeParams.Action = "VARIATION"
	} else if action == "r" {
		changeParams.Action = "REROLL"
		return changeParams
	} else {
		return nil
	}

	index, err := strconv.Atoi(action[1:2])
	if err != nil || index < 1 || index > 4 {
		return nil
	}
	changeParams.Index = index
	return changeParams
}