package db

import (
	"errors"
	"fmt"
	"th7/data/config"
	"th7/data/thermocouple"
	"th7/ports"
	"time"
)

var (
	thermocoupleTypes = map[string]thermocouple.Type{
		"B": thermocouple.B,
		"E": thermocouple.E,
		"J": thermocouple.J,
		"K": thermocouple.K,
		"N": thermocouple.N,
		"R": thermocouple.R,
		"S": thermocouple.S,
		"T": thermocouple.T,
		"U": thermocouple.None, // for uV measurements
	}
)

func NewAdapter(corePort ports.CorePort, cfg config.Config) (ports.DBPort, error) {

	var duration time.Duration
	var no_logging bool
	var adapter ports.DBPort
	var err error

	no_logging = cfg.Board.NoLogging
	duration = time.Duration(cfg.Board.Logfreq) * time.Second

	// if no DB is specified, or nolog=true then use a dummy db adapter
	if _, ok := cfg.DB["type"]; !ok || no_logging {
		adapter, _ = NewDummyAdapter()
		go startLoggingProcess(adapter, corePort, duration)
		return adapter, nil
	}

	db := fmt.Sprint(cfg.DB["type"])

	switch db {
	case "sqlite3":
		adapter, err = NewSQLite3Adapter(cfg)

	default:
		return &DummyAdapter{}, errors.New("unknown db type")
	}

	if err != nil {
		return &DummyAdapter{}, err
	}

	go startLoggingProcess(adapter, corePort, duration)
	return adapter, nil
}