package service

import (
	"cybertron/internal/client/elastic"
	"cybertron/pkg/log"
	"cybertron/pkg/utils"
	"github.com/gin-gonic/gin"
	"net/http"
	"strconv"
)

type SearchService struct {
	logger              *log.Logger
	elasticSearchClient *elastic.ElasticSearchClient
}

func NewSearchService(logger *log.Logger, elasticSearchClient *elastic.ElasticSearchClient) *SearchService {
	return &SearchService{
		logger:              logger,
		elasticSearchClient: elasticSearchClient,
	}
}

func (s *SearchService) Search(c *gin.Context) {

}

func (s *SearchService) GetErrorDetails(c *gin.Context) {
	error_hash := c.Query("error_hash")
	from := c.DefaultQuery("from", "0")

	fromInNumber, err := strconv.ParseInt(from, 10, 64)

	if err != nil {
		c.JSON(http.StatusBadRequest, "from should be a number")
		return
	}

	term_query := utils.CreateTermSubQuery("error_hash", error_hash)
	search_query := utils.CreateSearchQuery(term_query)
	size_query := utils.CreateSizeQuery(1)
	sort_query := utils.CreateSortQuery("created_at", "asc", "")
	after_query := utils.CreateFromQuery(fromInNumber)
	es_query := utils.CreateEsQuery(search_query, size_query, sort_query, after_query)
	println(es_query)

	//	searchRequest := `
	//{
	//  "size": 1,
	//  "query": {
	//    "term": {
	//      "error_hash": {
	//        "value": "%s"
	//      }
	//    }
	//  },
	//   "sort": [
	//    { "created_at": { "order": "asc" } }
	//  ],
	//  "search_after": ["1724732743"]
	//}
	//
	//    `

	searchRequestformatted := es_query
	fields := []string{"error", "significant_stack", "title"}

	response, _, total, err := s.elasticSearchClient.SearchDocuments(searchRequestformatted, fields)

	if err != nil {
		utils.ErrorResponse(c, "Failed to search please try again later")
		return
	}
	c.JSON(http.StatusOK, gin.H{
		"results": response,
		"total":   total,
	})
}

func (s *SearchService) GetErrorList(c *gin.Context) {
	//todo pagination and aggregation of errors
	projectId := c.Query("project_id")
	size := c.DefaultQuery("size", "10")
	afterKey := c.DefaultQuery("after_key", "")

	sizeInNumber, sizeParseError := strconv.Atoi(size)

	if sizeParseError != nil {
		c.JSON(http.StatusBadRequest, "size should be a number")
		return
	}

	term_query := utils.CreateTermSubQuery("project_id", projectId)
	search_query := utils.CreateSearchQuery(term_query)
	size_query := utils.CreateSizeQuery(0)
	top_hits_aggs_name_query := utils.BuildAggregationQuery("unique_errors", utils.CreateTopHitsAggsQuery(1, []string{"error", "significant_stack", "created_at", "error_hash"}))
	top_hits_aggs_query := utils.CreateAggregationQuery(top_hits_aggs_name_query)

	//building composite aggregation
	composite_term_query := utils.CreateTermsAggregationQueryWithoutSize("error_hash")
	composite_aggregation_query_without_name := utils.CreateCompositeAggsQuery(sizeInNumber, "error_hash", "error_hash", afterKey, composite_term_query)
	composite_aggs_query := utils.BuildAggregationQuery("errors_by_hash", composite_aggregation_query_without_name, top_hits_aggs_query)

	compositeAggsQuery := utils.CreateAggregationQuery(composite_aggs_query)

	//final_aggs_query := utils.CreateAggregationQuery(top_hits_value_count, compositeAggsQuery)

	final_query := utils.CreateEsQuery(search_query, size_query, compositeAggsQuery)

	println("%s", final_query)
	//	searchRequest := `
	//{
	//  "size": 0,
	//  "query": {
	//    "term": {
	//      "project_id": {
	//        "value": "%s"
	//      }
	//    }
	//  },
	//  "aggs": {
	//    "errors_by_hash": {
	//      "composite": {
	//        "size": 3,
	//        "sources": [
	//          {
	//            "error_hash": {
	//              "terms": {
	//                "field": "error_hash.keyword"
	//              }
	//            }
	//          }
	//        ]
	//      },
	//      "aggs": {
	//        "unique_errors": {
	//          "top_hits": {
	//            "_source": {
	//              "includes": ["error", "error_hash"]
	//            }
	//          }
	//        },
	//        "error_count": {
	//          "value_count": {
	//            "field": "error.keyword"
	//          }
	//        }
	//      }
	//    }
	//
	//  }
	//}
	//
	//    `

	fields := []string{"error", "significant_stack", "title"}
	var _, aggs, total, err = s.elasticSearchClient.SearchDocuments(final_query, fields)

	if err != nil {
		utils.ErrorResponse(c, "search failed please try again")
		return
	}

	c.JSON(http.StatusOK, gin.H{
		"results": aggs,
		"total":   total,
	})

}