package controller

import (
	"net/http"

	"github.com/2930134478/AI-CS/backend/service"
	"github.com/gin-gonic/gin"
)

// EmbeddingConfigController 知识库向量配置控制器
type EmbeddingConfigController struct {
	service *service.EmbeddingConfigService
	users   *service.UserService
}

// NewEmbeddingConfigController 创建控制器实例
func NewEmbeddingConfigController(s *service.EmbeddingConfigService, users *service.UserService) *EmbeddingConfigController {
	return &EmbeddingConfigController{service: s, users: users}
}

// Get 获取当前配置（API Key 脱敏）
// GET /agent/embedding-config?user_id=1
func (e *EmbeddingConfigController) Get(c *gin.Context) {
	if !requirePermission(c, e.users, string(service.PermSettings)) {
		return
	}
	_, err := parseUintQuery(c, "user_id")
	if err != nil {
		c.JSON(http.StatusBadRequest, gin.H{"error": "user_id 不合法"})
		return
	}
	result, err := e.service.GetForAPI()
	if err != nil {
		c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
		return
	}
	c.JSON(http.StatusOK, result)
}

// Update 更新配置（仅管理员）
// PUT /agent/embedding-config
// Body: { "user_id": 1, "embedding_type": "openai", "api_url": "...", "api_key": "...", "model": "...", "customer_can_use_kb": true }
func (e *EmbeddingConfigController) Update(c *gin.Context) {
	if !requirePermission(c, e.users, string(service.PermSettings)) {
		return
	}
	var req struct {
		UserID                  uint   `json:"user_id" binding:"required"`
		EmbeddingType           *string `json:"embedding_type"`
		APIURL                  *string `json:"api_url"`
		APIKey                  *string `json:"api_key"`
		Model                   *string `json:"model"`
		CustomerCanUseKB        *bool   `json:"customer_can_use_kb"`
		VisitorWebSearchEnabled *bool   `json:"visitor_web_search_enabled"`
		WebSearchSource         *string `json:"web_search_source"`
	}
	if err := c.ShouldBindJSON(&req); err != nil {
		c.JSON(http.StatusBadRequest, gin.H{"error": "请求参数错误"})
		return
	}
	result, err := e.service.Update(req.UserID, service.UpdateEmbeddingConfigInput{
		EmbeddingType:           req.EmbeddingType,
		APIURL:                  req.APIURL,
		APIKey:                  req.APIKey,
		Model:                   req.Model,
		CustomerCanUseKB:        req.CustomerCanUseKB,
		VisitorWebSearchEnabled: req.VisitorWebSearchEnabled,
		WebSearchSource:         req.WebSearchSource,
	})
	if err != nil {
		c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
		return
	}
	c.JSON(http.StatusOK, result)
}