package controller

import (
	"encoding/json"
	"fmt"
	"github.com/gin-gonic/gin"
	"net/http"
	"one-api/common"
	"one-api/model"
	"strconv"
	"strings"
)

type OpenAIModel struct {
	ID         string `json:"id"`
	Object     string `json:"object"`
	Created    int64  `json:"created"`
	OwnedBy    string `json:"owned_by"`
	Permission []struct {
		ID                 string `json:"id"`
		Object             string `json:"object"`
		Created            int64  `json:"created"`
		AllowCreateEngine  bool   `json:"allow_create_engine"`
		AllowSampling      bool   `json:"allow_sampling"`
		AllowLogprobs      bool   `json:"allow_logprobs"`
		AllowSearchIndices bool   `json:"allow_search_indices"`
		AllowView          bool   `json:"allow_view"`
		AllowFineTuning    bool   `json:"allow_fine_tuning"`
		Organization       string `json:"organization"`
		Group              string `json:"group"`
		IsBlocking         bool   `json:"is_blocking"`
	} `json:"permission"`
	Root   string `json:"root"`
	Parent string `json:"parent"`
}

type OpenAIModelsResponse struct {
	Data    []OpenAIModel `json:"data"`
	Success bool          `json:"success"`
}

func GetAllChannels(c *gin.Context) {
	p, _ := strconv.Atoi(c.Query("p"))
	pageSize, _ := strconv.Atoi(c.Query("page_size"))
	if p < 0 {
		p = 0
	}
	if pageSize < 0 {
		pageSize = common.ItemsPerPage
	}
	idSort, _ := strconv.ParseBool(c.Query("id_sort"))
	channels, err := model.GetAllChannels(p*pageSize, pageSize, false, idSort)
	if err != nil {
		c.JSON(http.StatusOK, gin.H{
			"success": false,
			"message": err.Error(),
		})
		return
	}
	c.JSON(http.StatusOK, gin.H{
		"success": true,
		"message": "",
		"data":    channels,
	})
	return
}

func FetchUpstreamModels(c *gin.Context) {
	id, err := strconv.Atoi(c.Param("id"))
	if err != nil {
		c.JSON(http.StatusOK, gin.H{
			"success": false,
			"message": err.Error(),
		})
		return
	}
	channel, err := model.GetChannelById(id, true)
	if err != nil {
		c.JSON(http.StatusOK, gin.H{
			"success": false,
			"message": err.Error(),
		})
		return
	}
	if channel.Type != common.ChannelTypeOpenAI {
		c.JSON(http.StatusOK, gin.H{
			"success": false,
			"message": "仅支持 OpenAI 类型渠道",
		})
		return
	}
	url := fmt.Sprintf("%s/v1/models", *channel.BaseURL)
	body, err := GetResponseBody("GET", url, channel, GetAuthHeader(channel.Key))
	if err != nil {
		c.JSON(http.StatusOK, gin.H{
			"success": false,
			"message": err.Error(),
		})
	}
	result := OpenAIModelsResponse{}
	err = json.Unmarshal(body, &result)
	if err != nil {
		c.JSON(http.StatusOK, gin.H{
			"success": false,
			"message": err.Error(),
		})
	}
	if !result.Success {
		c.JSON(http.StatusOK, gin.H{
			"success": false,
			"message": "上游返回错误",
		})
	}

	var ids []string
	for _, model := range result.Data {
		ids = append(ids, model.ID)
	}

	c.JSON(http.StatusOK, gin.H{
		"success": true,
		"message": "",
		"data":    ids,
	})
}

func FixChannelsAbilities(c *gin.Context) {
	count, err := model.FixAbility()
	if err != nil {
		c.JSON(http.StatusOK, gin.H{
			"success": false,
			"message": err.Error(),
		})
		return
	}
	c.JSON(http.StatusOK, gin.H{
		"success": true,
		"message": "",
		"data":    count,
	})
}

func SearchChannels(c *gin.Context) {
	keyword := c.Query("keyword")
	group := c.Query("group")
	modelKeyword := c.Query("model")
	//idSort, _ := strconv.ParseBool(c.Query("id_sort"))
	channels, err := model.SearchChannels(keyword, group, modelKeyword)
	if err != nil {
		c.JSON(http.StatusOK, gin.H{
			"success": false,
			"message": err.Error(),
		})
		return
	}
	c.JSON(http.StatusOK, gin.H{
		"success": true,
		"message": "",
		"data":    channels,
	})
	return
}

func GetChannel(c *gin.Context) {
	id, err := strconv.Atoi(c.Param("id"))
	if err != nil {
		c.JSON(http.StatusOK, gin.H{
			"success": false,
			"message": err.Error(),
		})
		return
	}
	channel, err := model.GetChannelById(id, false)
	if err != nil {
		c.JSON(http.StatusOK, gin.H{
			"success": false,
			"message": err.Error(),
		})
		return
	}
	c.JSON(http.StatusOK, gin.H{
		"success": true,
		"message": "",
		"data":    channel,
	})
	return
}

func AddChannel(c *gin.Context) {
	channel := model.Channel{}
	err := c.ShouldBindJSON(&channel)
	if err != nil {
		c.JSON(http.StatusOK, gin.H{
			"success": false,
			"message": err.Error(),
		})
		return
	}
	channel.CreatedTime = common.GetTimestamp()
	keys := strings.Split(channel.Key, "\n")
	if channel.Type == common.ChannelTypeVertexAi {
		keys = []string{channel.Key}
	}
	channels := make([]model.Channel, 0, len(keys))
	for _, key := range keys {
		if key == "" {
			continue
		}
		localChannel := channel
		localChannel.Key = key
		channels = append(channels, localChannel)
	}
	err = model.BatchInsertChannels(channels)
	if err != nil {
		c.JSON(http.StatusOK, gin.H{
			"success": false,
			"message": err.Error(),
		})
		return
	}
	c.JSON(http.StatusOK, gin.H{
		"success": true,
		"message": "",
	})
	return
}

func DeleteChannel(c *gin.Context) {
	id, _ := strconv.Atoi(c.Param("id"))
	channel := model.Channel{Id: id}
	err := channel.Delete()
	if err != nil {
		c.JSON(http.StatusOK, gin.H{
			"success": false,
			"message": err.Error(),
		})
		return
	}
	c.JSON(http.StatusOK, gin.H{
		"success": true,
		"message": "",
	})
	return
}

func DeleteDisabledChannel(c *gin.Context) {
	rows, err := model.DeleteDisabledChannel()
	if err != nil {
		c.JSON(http.StatusOK, gin.H{
			"success": false,
			"message": err.Error(),
		})
		return
	}
	c.JSON(http.StatusOK, gin.H{
		"success": true,
		"message": "",
		"data":    rows,
	})
	return
}

type ChannelBatch struct {
	Ids []int `json:"ids"`
}

func DeleteChannelBatch(c *gin.Context) {
	channelBatch := ChannelBatch{}
	err := c.ShouldBindJSON(&channelBatch)
	if err != nil || len(channelBatch.Ids) == 0 {
		c.JSON(http.StatusOK, gin.H{
			"success": false,
			"message": "参数错误",
		})
		return
	}
	err = model.BatchDeleteChannels(channelBatch.Ids)
	if err != nil {
		c.JSON(http.StatusOK, gin.H{
			"success": false,
			"message": err.Error(),
		})
		return
	}
	c.JSON(http.StatusOK, gin.H{
		"success": true,
		"message": "",
		"data":    len(channelBatch.Ids),
	})
	return
}

func UpdateChannel(c *gin.Context) {
	channel := model.Channel{}
	err := c.ShouldBindJSON(&channel)
	if err != nil {
		c.JSON(http.StatusOK, gin.H{
			"success": false,
			"message": err.Error(),
		})
		return
	}
	err = channel.Update()
	if err != nil {
		c.JSON(http.StatusOK, gin.H{
			"success": false,
			"message": err.Error(),
		})
		return
	}
	c.JSON(http.StatusOK, gin.H{
		"success": true,
		"message": "",
		"data":    channel,
	})
	return
}