package controller

import (
	"net/http"
	"one-api/common"
	"one-api/common/config"
	"one-api/common/utils"
	"one-api/model"
	"strconv"

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

func GetUserTokensList(c *gin.Context) {
	userId := c.GetInt("id")
	var params model.GenericParams
	if err := c.ShouldBindQuery(&params); err != nil {
		common.APIRespondWithError(c, http.StatusOK, err)
		return
	}

	tokens, err := model.GetUserTokensList(userId, &params)
	if err != nil {
		common.APIRespondWithError(c, http.StatusOK, err)
		return
	}
	c.JSON(http.StatusOK, gin.H{
		"success": true,
		"message": "",
		"data":    tokens,
	})
}

func GetToken(c *gin.Context) {
	id, err := strconv.Atoi(c.Param("id"))
	userId := c.GetInt("id")
	if err != nil {
		c.JSON(http.StatusOK, gin.H{
			"success": false,
			"message": err.Error(),
		})
		return
	}
	token, err := model.GetTokenByIds(id, userId)
	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":    token,
	})
}

func GetPlaygroundToken(c *gin.Context) {
	tokenName := "sys_playground"
	userId := c.GetInt("id")
	token, err := model.GetTokenByName(tokenName, userId)
	if err != nil {
		cleanToken := model.Token{
			UserId:         userId,
			Name:           tokenName,
			Key:            utils.GenerateKey(),
			CreatedTime:    utils.GetTimestamp(),
			AccessedTime:   utils.GetTimestamp(),
			ExpiredTime:    0,
			RemainQuota:    0,
			UnlimitedQuota: true,
			ChatCache:      false,
		}
		err = cleanToken.Insert()
		if err != nil {
			c.JSON(http.StatusOK, gin.H{
				"success": false,
				"message": "创建令牌失败，请去系统手动配置一个名称为：sys_playground 的令牌",
			})
			return
		}
		token = &cleanToken
	}

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

func GetTokenStatus(c *gin.Context) {
	tokenId := c.GetInt("token_id")
	userId := c.GetInt("id")
	token, err := model.GetTokenByIds(tokenId, userId)
	if err != nil {
		c.JSON(http.StatusOK, gin.H{
			"success": false,
			"message": err.Error(),
		})
		return
	}
	expiredAt := token.ExpiredTime
	if expiredAt == -1 {
		expiredAt = 0
	}
	c.JSON(http.StatusOK, gin.H{
		"object":          "credit_summary",
		"total_granted":   token.RemainQuota,
		"total_used":      0, // not supported currently
		"total_available": token.RemainQuota,
		"expires_at":      expiredAt * 1000,
	})
}

func AddToken(c *gin.Context) {
	token := model.Token{}
	err := c.ShouldBindJSON(&token)
	if err != nil {
		c.JSON(http.StatusOK, gin.H{
			"success": false,
			"message": err.Error(),
		})
		return
	}
	if len(token.Name) > 30 {
		c.JSON(http.StatusOK, gin.H{
			"success": false,
			"message": "令牌名称过长",
		})
		return
	}
	cleanToken := model.Token{
		UserId:         c.GetInt("id"),
		Name:           token.Name,
		Key:            utils.GenerateKey(),
		CreatedTime:    utils.GetTimestamp(),
		AccessedTime:   utils.GetTimestamp(),
		ExpiredTime:    token.ExpiredTime,
		RemainQuota:    token.RemainQuota,
		UnlimitedQuota: token.UnlimitedQuota,
		ChatCache:      token.ChatCache,
	}
	err = cleanToken.Insert()
	if err != nil {
		c.JSON(http.StatusOK, gin.H{
			"success": false,
			"message": err.Error(),
		})
		return
	}
	c.JSON(http.StatusOK, gin.H{
		"success": true,
		"message": "",
	})
}

func DeleteToken(c *gin.Context) {
	id, _ := strconv.Atoi(c.Param("id"))
	userId := c.GetInt("id")
	err := model.DeleteTokenById(id, userId)
	if err != nil {
		c.JSON(http.StatusOK, gin.H{
			"success": false,
			"message": err.Error(),
		})
		return
	}
	c.JSON(http.StatusOK, gin.H{
		"success": true,
		"message": "",
	})
}

func UpdateToken(c *gin.Context) {
	userId := c.GetInt("id")
	statusOnly := c.Query("status_only")
	token := model.Token{}
	err := c.ShouldBindJSON(&token)
	if err != nil {
		c.JSON(http.StatusOK, gin.H{
			"success": false,
			"message": err.Error(),
		})
		return
	}
	if len(token.Name) > 30 {
		c.JSON(http.StatusOK, gin.H{
			"success": false,
			"message": "令牌名称过长",
		})
		return
	}
	cleanToken, err := model.GetTokenByIds(token.Id, userId)
	if err != nil {
		c.JSON(http.StatusOK, gin.H{
			"success": false,
			"message": err.Error(),
		})
		return
	}
	if token.Status == config.TokenStatusEnabled {
		if cleanToken.Status == config.TokenStatusExpired && cleanToken.ExpiredTime <= utils.GetTimestamp() && cleanToken.ExpiredTime != -1 {
			c.JSON(http.StatusOK, gin.H{
				"success": false,
				"message": "令牌已过期，无法启用，请先修改令牌过期时间，或者设置为永不过期",
			})
			return
		}
		if cleanToken.Status == config.TokenStatusExhausted && cleanToken.RemainQuota <= 0 && !cleanToken.UnlimitedQuota {
			c.JSON(http.StatusOK, gin.H{
				"success": false,
				"message": "令牌可用额度已用尽，无法启用，请先修改令牌剩余额度，或者设置为无限额度",
			})
			return
		}
	}
	if statusOnly != "" {
		cleanToken.Status = token.Status
	} else {
		// If you add more fields, please also update token.Update()
		cleanToken.Name = token.Name
		cleanToken.ExpiredTime = token.ExpiredTime
		cleanToken.RemainQuota = token.RemainQuota
		cleanToken.UnlimitedQuota = token.UnlimitedQuota
		cleanToken.ChatCache = token.ChatCache
	}
	err = cleanToken.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":    cleanToken,
	})
}