package storage

import (
	"os"
	"path/filepath"
	"strings"

	"gopkg.in/yaml.v3"
)

// SaveRequest writes rf to .greq/requests/<folder>/<slug>.yaml.
// folder may be empty (places the file directly in requests/).
func SaveRequest(rf RequestFile, folder string) (string, error) {
	dir := filepath.Join(RootDir, "requests")
	if folder != "" {
		dir = filepath.Join(dir, folder)
	}
	if err := os.MkdirAll(dir, 0o755); err != nil {
		return "", err
	}

	slug := strings.ToLower(strings.ReplaceAll(rf.Name, " ", "_"))
	slug = strings.Map(func(r rune) rune {
		if (r >= 'a' && r <= 'z') || (r >= '0' && r <= '9') || r == '_' || r == '-' {
			return r
		}
		return '_'
	}, slug)
	path := filepath.Join(dir, slug+".yaml")

	data, err := yaml.Marshal(&rf)
	if err != nil {
		return "", err
	}
	return path, os.WriteFile(path, data, 0o644)
}