package opt

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

	"esway/internal/tool"

	"github.com/loveuer/nf/nft/log"
)

type listen struct {
	Gateway   string `json:"gateway"`
	Dashboard string `json:"dashboard"`
}

type db struct {
	Type string `json:"-"` // postgres, mysql, sqlite
	Uri  string `json:"uri"`
}

type cache struct {
	Uri string `json:"uri"`
}

type config struct {
	Name      string   `json:"name"`
	Debug     bool     `json:"-"`
	Dev       bool     `json:"-"`
	Config    string   `json:"-"`
	Listen    listen   `json:"listen"`
	Endpoints []string `json:"endpoints"`
	DB        db       `json:"db"`
	Cache     cache    `json:"cache"`
}

var (
	Mode string
	Cfg  = &config{}
)

func Init(filename string) error {
	var (
		err error
		bs  []byte
	)

	log.Info("opt.Init: start reading config file: %s", filename)

	if bs, err = os.ReadFile(filename); err != nil {
		return fmt.Errorf("opt.Init: read config file=%s err=%v", filename, err)
	}

	if err = json.Unmarshal(bs, Cfg); err != nil {
		return fmt.Errorf("opt.Init: json marshal config=%s err=%v", string(bs), err)
	}

	tool.TablePrinter(Cfg)

	return nil
}