package aws

import (
	"errors"
	"io"
	"net/http"
	"one-api/dto"
	"one-api/relay/channel/claude"
	relaycommon "one-api/relay/common"
	"one-api/setting/model_setting"
	"one-api/types"

	"github.com/gin-gonic/gin"
)

const (
	RequestModeCompletion = 1
	RequestModeMessage    = 2
)

type Adaptor struct {
	RequestMode int
}

func (a *Adaptor) ConvertGeminiRequest(*gin.Context, *relaycommon.RelayInfo, *dto.GeminiChatRequest) (any, error) {
	//TODO implement me
	return nil, errors.New("not implemented")
}

func (a *Adaptor) ConvertClaudeRequest(c *gin.Context, info *relaycommon.RelayInfo, request *dto.ClaudeRequest) (any, error) {
	c.Set("request_model", request.Model)
	c.Set("converted_request", request)
	return request, nil
}

func (a *Adaptor) ConvertAudioRequest(c *gin.Context, info *relaycommon.RelayInfo, request dto.AudioRequest) (io.Reader, error) {
	//TODO implement me
	return nil, errors.New("not implemented")
}

func (a *Adaptor) ConvertImageRequest(c *gin.Context, info *relaycommon.RelayInfo, request dto.ImageRequest) (any, error) {
	//TODO implement me
	return nil, errors.New("not implemented")
}

func (a *Adaptor) Init(info *relaycommon.RelayInfo) {
	a.RequestMode = RequestModeMessage
}

func (a *Adaptor) GetRequestURL(info *relaycommon.RelayInfo) (string, error) {
	return "", nil
}

func (a *Adaptor) SetupRequestHeader(c *gin.Context, req *http.Header, info *relaycommon.RelayInfo) error {
	anthropicBeta := c.Request.Header.Get("anthropic-beta")
	if anthropicBeta != "" {
		req.Set("anthropic-beta", anthropicBeta)
	}
	model_setting.GetClaudeSettings().WriteHeaders(info.OriginModelName, req)
	return nil
}

func (a *Adaptor) ConvertOpenAIRequest(c *gin.Context, info *relaycommon.RelayInfo, request *dto.GeneralOpenAIRequest) (any, error) {
	if request == nil {
		return nil, errors.New("request is nil")
	}
	// 检查是否为Nova模型
	if isNovaModel(request.Model) {
		novaReq := convertToNovaRequest(request)
		c.Set("request_model", request.Model)
		c.Set("converted_request", novaReq)
		c.Set("is_nova_model", true)
		return novaReq, nil
	}

	// 原有的Claude模型处理逻辑
	var claudeReq *dto.ClaudeRequest
	var err error
	claudeReq, err = claude.RequestOpenAI2ClaudeMessage(c, *request)
	if err != nil {
		return nil, err
	}
	c.Set("request_model", claudeReq.Model)
	c.Set("converted_request", claudeReq)
	c.Set("is_nova_model", false)
	return claudeReq, err
}

func (a *Adaptor) ConvertRerankRequest(c *gin.Context, relayMode int, request dto.RerankRequest) (any, error) {
	return nil, nil
}

func (a *Adaptor) ConvertEmbeddingRequest(c *gin.Context, info *relaycommon.RelayInfo, request dto.EmbeddingRequest) (any, error) {
	//TODO implement me
	return nil, errors.New("not implemented")
}

func (a *Adaptor) ConvertOpenAIResponsesRequest(c *gin.Context, info *relaycommon.RelayInfo, request dto.OpenAIResponsesRequest) (any, error) {
	// TODO implement me
	return nil, errors.New("not implemented")
}

func (a *Adaptor) DoRequest(c *gin.Context, info *relaycommon.RelayInfo, requestBody io.Reader) (any, error) {
	return nil, nil
}

func (a *Adaptor) DoResponse(c *gin.Context, resp *http.Response, info *relaycommon.RelayInfo) (usage any, err *types.NewAPIError) {
	if info.IsStream {
		err, usage = awsStreamHandler(c, resp, info, a.RequestMode)
	} else {
		err, usage = awsHandler(c, info, a.RequestMode)
	}
	return
}

func (a *Adaptor) GetModelList() (models []string) {
	for n := range awsModelIDMap {
		models = append(models, n)
	}

	return
}

func (a *Adaptor) GetChannelName() string {
	return ChannelName
}
