package main

import (
	"fmt"
	"log"
	"os"
	"path/filepath"

	"github.com/spf13/viper"
)

type Config struct {
	SSHUser         string `mapstructure:"SSH_USER"`
	SSHPassword     string `mapstructure:"SSH_PASSWORD"`
	SSHHost         string `mapstructure:"SSH_HOST"`
	JumpUser        string `mapstructure:"JUMP_USER"`
	JumpHost        string `mapstructure:"JUMP_HOST"`
	WorkstationHost string `mapstructure:"WORKSTATION_HOST"`
	WorkstationUser string `mapstructure:"WORKSTATION_USER"`
	WorkstationMac  string `mapstructure:"WORKSTATION_MAC"`
	RDPUser         string `mapstructure:"RDP_USER"`
	RDPPassword     string `mapstructure:"RDP_PASSWORD"`
	WorkstationIP   string `mapstructure:"WORKSTATION_IP"`
	SSHPort         int    `mapstructure:"SSH_PORT"`
	// DatabasePath    string `mapstructure:"DATABASE_PATH"`
}

type Flags struct {
	ShowWeek          bool
	ShowMonth         bool
	ShowExport        bool
	ExportName        string
	StartInBackground bool
}

func loadConfig() (Config, error) {
	var cfg Config
	configPath, err := os.UserConfigDir()
	if err != nil {
		return cfg, fmt.Errorf("could not get user config dir: %w", err)
	}

	workConfigPath := filepath.Join(configPath, "work")
	configFile := filepath.Join(workConfigPath, "config.toml")

	if err := os.MkdirAll(workConfigPath, 0750); err != nil {
		return cfg, fmt.Errorf("could not create config directory '%s': %w", workConfigPath, err)
	}

	viper.SetConfigFile(configFile)
	viper.SetConfigType("toml")
	viper.AutomaticEnv()

	if err := viper.ReadInConfig(); err != nil {
		if _, ok := err.(viper.ConfigFileNotFoundError); !ok {
			return cfg, fmt.Errorf("error reading config file '%s': %w", configFile, err)
		}
		log.Printf("INFO: Config file '%s' not found, using defaults/env vars.", configFile)
	}

	if err := viper.UnmarshalKey("default", &cfg); err != nil {
		if err := viper.Unmarshal(&cfg); err != nil {
			return cfg, fmt.Errorf("error decoding config from '%s': %w", configFile, err)
		}
	}

	if cfg.SSHPort == 0 {
		cfg.SSHPort = 22
	}

	return cfg, nil
}