package main

import (
	"encoding/json"
	"fmt"
	"os"

	"git.loyso.art/frx/kurious/internal/common/config"
)

type dbEngine string

const (
	DBEngineUnknown dbEngine = ""
	DBEngineYDB     dbEngine = "ydb"
	DBEngineSqlite  dbEngine = "sqlite"
)

type Config struct {
	Log            config.Log    `json:"log"`
	YDB            config.YDB    `json:"ydb"`
	Sqlite         config.Sqlite `json:"sqlite"`
	DBEngine       dbEngine      `json:"db_engine"`
	SyncSravniCron string        `json:"sync_sravni_cron"`

	DebugHTTP bool `json:"debug_http"`
}

func readFromFile(path string, defaultConfigF func() Config) (Config, error) {
	out := defaultConfigF()
	payload, err := os.ReadFile(path)
	if err != nil {
		return out, fmt.Errorf("opening file: %w", err)
	}

	err = json.Unmarshal(payload, &out)
	if err != nil {
		return out, fmt.Errorf("decoding as json: %w", err)
	}

	return out, nil
}

func defaultConfig() Config {
	return Config{
		Log: config.Log{
			Level:  config.LogLevelInfo,
			Format: config.LogFormatText,
		},
		// TODO: change to sqlite once it proven to be working
		DBEngine: DBEngineYDB,
	}
}