package functions

import (
	"github.com/gin-gonic/gin"

	"git.x2erp.com/qdy/go-base/mycsv"
	"git.x2erp.com/qdy/go-base/types"
	"git.x2erp.com/qdy/go-db/factory/database"
)

// 统一的错误响应处理
func handleErrorResponseCSV(c *gin.Context, err error) {
	errorCSV := mycsv.CreateStringToCSV(err.Error())
	c.Header("Content-Type", "text/csv; charset=utf-8")
	c.Header("X-Error", "true")
	c.Data(400, "text/csv; charset=utf-8", errorCSV)
}

// 统一的成功响应处理
func handleSuccessResponseCSV(c *gin.Context, csvData []byte) {
	c.Header("Content-Type", "text/csv; charset=utf-8")
	c.Data(200, "text/csv; charset=utf-8", csvData)
}

// 执行查询，返回CSV数据格式。无参数查询
func QueryToCSV(dbFactory *database.DBFactory) func(c *gin.Context, req types.QueryRequest) {
	return func(c *gin.Context, req types.QueryRequest) {
		csvData, err := dbFactory.QueryToCSV(req.SQL, req.WriterHeader)
		if err != nil {
			handleErrorResponseCSV(c, err)
			return
		}
		handleSuccessResponseCSV(c, csvData)
	}
}

// 执行查询，返回CSV数据格式。带参数名称进行查询
func QueryParamNameToCSV(dbFactory *database.DBFactory) func(c *gin.Context, req types.QueryRequest) {
	return func(c *gin.Context, req types.QueryRequest) {

		csvData, err := dbFactory.QueryParamsNameToCSV(req.SQL, req.WriterHeader, req.Params)
		if err != nil {
			handleErrorResponseCSV(c, err)
			return
		}
		handleSuccessResponseCSV(c, csvData)
	}
}

// 执行查询，返回CSV数据格式。带占位参数进行查询
func QueryPositionalToCSV(dbFactory *database.DBFactory) func(c *gin.Context, req types.QueryRequest) {
	return func(c *gin.Context, req types.QueryRequest) {
		csvData, err := dbFactory.QueryPositionalToCSV(req.SQL, req.WriterHeader, req.PositionalParams)
		if err != nil {
			handleErrorResponseCSV(c, err)
			return
		}
		handleSuccessResponseCSV(c, csvData)
	}
}