package requette

import (
	"api_serveurless_go/bd"
	"api_serveurless_go/types"
	"database/sql"
	"log"
)

func GetAllTechnologies() types.Technologies {
	db := bd.GetDB()
	
	stmt, err := db.Prepare("SELECT  * FROM technologie")
	if err != nil {
		log.Fatal(err)
	}
	row, err := stmt.Query()
	defer stmt.Close()
	if err != nil {
		log.Fatal(err)
	}

	stmt2, err := db.Prepare("SELECT count(*) FROM technologie")
	if err != nil {
		log.Fatal(err)
	}
	row2, err := stmt2.Query()
	defer stmt2.Close()
	if err != nil {
		log.Fatal(err)
	}
	var count int
	for row2.Next() {
		err := row2.Scan(&count)
		if err != nil {
			log.Fatal(err)
		}
	}

	var technologies types.Technologies
	technologies.Technologies = hydrateTechnologies(row)
	technologies.Count = count

	return technologies

}


func hydrateTechnologies(rows *sql.Rows) []types.TechnologieShort {
	var technologies []types.TechnologieShort
	for rows.Next() {
		var technologie types.TechnologieShort
		err := rows.Scan(&technologie.Id, &technologie.Name)
		if err != nil {
			log.Fatal(err)
		}
	
		technologies = append(technologies, technologie)
	}
	return technologies
}

func CreateTechnologie(projet types.TechnologieCreate) *types.TechnologieCreate {
	db := bd.GetDB()
	stmt, err := db.Prepare("INSERT INTO technologie (name) VALUES (?)")
	if err != nil {
		log.Fatal(err)
	}
	_, err = stmt.Exec(projet.Name)
	if err != nil {
		log.Fatal(err)
		return nil
	}
	defer stmt.Close()
	return &projet
}

func UpdateTechnologie(technologie types.TechnologieFull) *types.TechnologieFull {
	db := bd.GetDB()
	stmt, err := db.Prepare("UPDATE technologie SET name = ? WHERE id = ?")
	if err != nil {
		log.Fatal(err)
	}
	_, err = stmt.Exec(technologie.Name, technologie.Id)
	if err != nil {
		log.Fatal(err)
		return nil
	}
	defer stmt.Close()
	return &technologie
}

func DeleteTechnologie(id int) bool {
	db := bd.GetDB()
	stmt, err := db.Prepare("DELETE FROM technologie WHERE id = ?")
	if err != nil {
		log.Fatal(err)
		return false
	}
	_, err = stmt.Exec(id)
	if err != nil {
		log.Fatal(err)
		return false
	}
	defer stmt.Close()
	return true
}