package controller

import (
	"net/http"
	"strconv"

	"github.com/QuantumNous/new-api/common"
	"github.com/QuantumNous/new-api/model"
	"github.com/gin-gonic/gin"
)

func groupRatioTarget(c *gin.Context) (int, bool) {
	id, err := strconv.Atoi(c.Param("id"))
	if err != nil || id <= 0 {
		c.JSON(http.StatusBadRequest, gin.H{"success": false, "message": "Invalid user"})
		return 0, false
	}
	user, err := model.GetUserById(id, false)
	if err != nil {
		common.ApiError(c, err)
		return 0, false
	}
	if c.GetInt("role") < common.RoleAdminUser || !canManageTargetRole(c.GetInt("role"), user.Role) {
		c.JSON(http.StatusForbidden, gin.H{"success": false, "message": "Permission denied"})
		return 0, false
	}
	return id, true
}

func GetUserGroupRatios(c *gin.Context) {
	id, ok := groupRatioTarget(c)
	if !ok {
		return
	}
	ratios, err := model.GetPersonalGroupRatios(c.Request.Context(), id)
	if err != nil {
		common.ApiError(c, err)
		return
	}
	c.JSON(http.StatusOK, gin.H{"success": true, "data": ratios})
}

func UpdateUserGroupRatios(c *gin.Context) {
	id, ok := groupRatioTarget(c)
	if !ok {
		return
	}
	var input struct {
		Ratios map[string]float64 `json:"ratios"`
	}
	if err := c.ShouldBindJSON(&input); err != nil || input.Ratios == nil {
		c.JSON(http.StatusBadRequest, gin.H{"success": false, "message": "Invalid ratios"})
		return
	}
	if err := model.SavePersonalGroupRatios(c.Request.Context(), id, input.Ratios); err != nil {
		common.ApiError(c, err)
		return
	}
	recordManageAuditFor(c, id, "user.group_ratios.update", map[string]any{"ratios": input.Ratios})
	c.JSON(http.StatusOK, gin.H{"success": true})
}

func GetGroupMetadata(c *gin.Context) {
	groups, err := model.GetGroupMetadata(c.Request.Context())
	if err != nil {
		common.ApiError(c, err)
		return
	}
	c.JSON(http.StatusOK, gin.H{"success": true, "data": groups})
}

func UpdateGroupMetadata(c *gin.Context) {
	var input struct {
		Groups map[string]model.GroupMetadataValue `json:"groups"`
	}
	if err := c.ShouldBindJSON(&input); err != nil || input.Groups == nil {
		c.JSON(http.StatusBadRequest, gin.H{"success": false, "message": "Invalid group metadata"})
		return
	}
	if err := model.SaveGroupMetadata(c.Request.Context(), input.Groups); err != nil {
		common.ApiError(c, err)
		return
	}
	recordManageAuditFor(c, 0, "group.metadata.update", map[string]any{"groups": input.Groups})
	c.JSON(http.StatusOK, gin.H{"success": true})
}