package handler

import (
	"net/http"

	"github.com/gin-gonic/gin"
	"knowledge-graph-backend/internal/model"
	"knowledge-graph-backend/internal/service"
)

type SearchHandler struct {
	service service.GraphService
}

func NewSearchHandler(svc service.GraphService) *SearchHandler {
	return &SearchHandler{
		service: svc,
	}
}

// @Summary 搜索节点
// @Description 根据关键词搜索知识图谱中的节点
// @Produce json
// @Param q query string true "搜索关键词"
// @Success 200 {object} model.SearchResponse "成功"
// @Failure 400 {object} model.ErrorResponse "请求错误"
// @Failure 500 {object} model.ErrorResponse "内部错误"
// @Router /api/search [get]
func (h *SearchHandler) SearchNodes(c *gin.Context) {
	query := c.Query("q")
	if query == "" {
		c.JSON(http.StatusBadRequest, model.ErrorResponse{Error: "bad_request", Message: "Query parameter 'q' is required"})
		return
	}

	results := h.service.SearchNodes(query)

	c.JSON(http.StatusOK, results)
}