package handlers

import (
	"crypto/hmac"
	"crypto/sha256"
	"encoding/hex"
	"time"

	"gitea.tecamino.com/paadi/dbHandler"
	"gitea.tecamino.com/paadi/tecamino-logger/logging"
)

type DatabaseHandler struct {
	database     *dbHandler.DBHandler
	timeLocation *time.Location
	token        []byte
}

func NewDatabaseHandler(name, path string, logger *logging.Logger) (*DatabaseHandler, error) {

	database, err := dbHandler.NewDBHandler(name, path, logger)
	if err != nil {
		return nil, err
	}
	return &DatabaseHandler{database: database}, nil
}

func (dH *DatabaseHandler) SetTimezone(timezone string) (err error) {
	if timezone == "" {
		timezone = "Local"
	}
	dH.timeLocation, err = time.LoadLocation(timezone)
	return
}

func (dH *DatabaseHandler) DatabaseOpened() bool {
	return dH.database != nil
}

func (dH *DatabaseHandler) AddNewTable(model any) error {
	return dH.database.AddNewTable(model)
}

func (dH *DatabaseHandler) AddNewColum(model any) error {
	return dH.database.AddNewColum(model)
}

func (dh *DatabaseHandler) hashField(field string) string {
	h := hmac.New(sha256.New, dh.token)
	h.Write([]byte(field))
	return hex.EncodeToString(h.Sum(nil))
}

func (dh *DatabaseHandler) SetToken(token string) {
	dh.token = []byte(token)
}