// Package config defines how to configure the tool
package config

import (
	"fmt"
	"os"

	"github.com/Luzifer/go_helpers/v2/fieldcollection"
	"github.com/sirupsen/logrus"
	"gopkg.in/yaml.v3"
)

type (
	// File represents the contents of a configuration file
	File struct {
		Uploaders []UploaderConfig `yaml:"uploaders"`
	}

	// UploaderConfig defines the settings for each uploader
	UploaderConfig struct {
		Name     string                           `yaml:"name"`
		Type     string                           `yaml:"type"`
		Settings *fieldcollection.FieldCollection `yaml:"settings"`
	}
)

// Load parses the configuration file from disk
func Load(filename string) (config File, err error) {
	f, err := os.Open(filename)
	if err != nil {
		return config, fmt.Errorf("opening config file: %w", err)
	}
	defer func() {
		if err := f.Close(); err != nil {
			logrus.WithError(err).Error("closing config file (leaked fd)")
		}
	}()

	dec := yaml.NewDecoder(f)
	dec.KnownFields(true)
	if err = dec.Decode(&config); err != nil {
		return config, fmt.Errorf("decoding config: %w", err)
	}

	return config, nil
}