package config

import (
	"fmt"
	"os"
	"strings"

	"gitea.futuresens.co.uk/futuresens/hardlink/handlers"
	log "github.com/sirupsen/logrus"
	yaml "gopkg.in/yaml.v3"
)

// configRec holds values from config.yml.
type ConfigRec struct {
	Port           int    `yaml:"port"`
	LockserverUrl  string `yaml:"lockservUrl"`
	LockType       string `yaml:"lockType"`
	EncoderAddress string `yaml:"encoderAddr"`
	Cert           string `yaml:"cert"`
	DispenserPort  string `yaml:"dispensPort"`
	DispenserAdrr  string `yaml:"dispensAddr"`
	PrinterName    string `yaml:"printerName"`
	LogDir         string `yaml:"logdir"`
	Dbport         int    `yaml:"dbport"`     // Port for the database connection
	Dbname         string `yaml:"dbname"`     // Database name for the connection
	Dbuser         string `yaml:"dbuser"`     // User for the database connection
	Dbpassword     string `yaml:"dbpassword"` // Password for the database connection
	IsPayment      bool   `yaml:"isPayment"`
	TestMode       bool   `yaml:"testMode"`
}

// ReadConfig reads config.yml and applies defaults.
func ReadHardlinkConfig() ConfigRec {
	var cfg ConfigRec
	const configName = "config.yml"
	defaultPort := 9091
	sep := string(os.PathSeparator)

	data, err := os.ReadFile(configName)
	if err != nil {
		log.Warnf("ReadConfig %s: %v", configName, err)
	} else if err := yaml.Unmarshal(data, &cfg); err != nil {
		log.Warnf("Unmarshal config: %v", err)
	}

	if cfg.Port == 0 {
		cfg.Port = defaultPort
	}

	if cfg.LockType == "" {
		err = fmt.Errorf("LockType is required in %s", configName)
		handlers.FatalError(err)
	}
	cfg.LockType = strings.ToLower(cfg.LockType)

	if cfg.LogDir == "" {
		cfg.LogDir = "./logs" + sep
	} else if !strings.HasSuffix(cfg.LogDir, sep) {
		cfg.LogDir += sep
	}

	if cfg.Dbport <= 0 || cfg.Dbuser == "" || cfg.Dbname == "" || cfg.Dbpassword == "" {
		err = fmt.Errorf("Database config (dbport, dbuser, dbname, dbpassword) are required in %s", configName)
		log.Warnf(err.Error())
	}

	return cfg
}

func ReadPreauthReleaserConfig() ConfigRec {
	var cfg ConfigRec
	const configName = "config.yml"
	sep := string(os.PathSeparator)

	data, err := os.ReadFile(configName)
	if err != nil {
		log.Warnf("ReadConfig %s: %v", configName, err)
	} else if err := yaml.Unmarshal(data, &cfg); err != nil {
		log.Warnf("Unmarshal config: %v", err)
	}

	if cfg.Dbport <= 0 || cfg.Dbuser == "" || cfg.Dbname == "" || cfg.Dbpassword == "" {
		err = fmt.Errorf("Database config (dbport, dbuser, dbname, dbpassword) are required in %s", configName)
		handlers.FatalError(err)
	}

	if cfg.LogDir == "" {
		cfg.LogDir = "./logs" + sep
	} else if !strings.HasSuffix(cfg.LogDir, sep) {
		cfg.LogDir += sep
	}
	return cfg
}