package config

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

	"gopkg.in/yaml.v3"
)

type Config struct {
	Depth string `yaml:"depth"`
	Directories []string `yaml:"directories"`
}

func getConfigPath() (string, error) {
	home, err := os.UserHomeDir()

	if err != nil {
		return "", err
	}

	return filepath.Join(home, ".config", "git-repo-updater", "config.yaml"), nil
}

func Load() (Config, error) {
	path, err := getConfigPath()

	if err != nil {
		return Config{}, err
	}

	data, err := os.ReadFile(path)

	if err != nil {
		return Config{}, fmt.Errorf("read config: %w", err)
	}

	var cfg Config

	if err := yaml.Unmarshal(data, &cfg); err != nil {
		return Config{}, fmt.Errorf("parse config: %w", err)
	}

	if len(cfg.Directories) == 0 {
		return Config{}, fmt.Errorf("no directories configured")
	}

	return cfg, nil
}