package config

import (
	"os"

	"gopkg.in/yaml.v3"
)

type Config struct {
	Site     SiteConfig     `yaml:"site"`
	Security SecurityConfig `yaml:"security"`
	Upload   UploadConfig   `yaml:"upload"`
	Storage  StorageConfig  `yaml:"storage"`
	APIToken APITokenConfig `yaml:"api_token"`
	Database DatabaseConfig `yaml:"database"`
}

type SiteConfig struct {
	Name        string `yaml:"name"`
	Description string `yaml:"description"`
}

type SecurityConfig struct {
	AdminPasswordHash string `yaml:"admin_password_hash"`
	PickupCodeLength  int    `yaml:"pickup_code_length"`
	PickupFailLimit   int    `yaml:"pickup_fail_limit"`
	JWTSecret         string `yaml:"jwt_secret"`
}

type UploadConfig struct {
	MaxFileSizeMB    int64 `yaml:"max_file_size_mb"`
	MaxBatchFiles    int   `yaml:"max_batch_files"`
	MaxRetentionDays int   `yaml:"max_retention_days"`
}

type StorageConfig struct {
	Type  string `yaml:"type"`
	Local struct {
		Path string `yaml:"path"`
	} `yaml:"local"`
	WebDAV struct {
		URL      string `yaml:"url"`
		Username string `yaml:"username"`
		Password string `yaml:"password"`
		Root     string `yaml:"root"`
	} `yaml:"webdav"`
	S3 struct {
		Endpoint  string `yaml:"endpoint"`
		Region    string `yaml:"region"`
		AccessKey string `yaml:"access_key"`
		SecretKey string `yaml:"secret_key"`
		Bucket    string `yaml:"bucket"`
		UseSSL    bool   `yaml:"use_ssl"`
	} `yaml:"s3"`
}

type APITokenConfig struct {
	Enabled       bool `yaml:"enabled"`
	AllowAdminAPI bool `yaml:"allow_admin_api"`
	MaxTokens     int  `yaml:"max_tokens"`
}

type DatabaseConfig struct {
	Path string `yaml:"path"`
}

var GlobalConfig *Config

func LoadConfig(path string) error {
	data, err := os.ReadFile(path)
	if err != nil {
		return err
	}

	var cfg Config
	if err := yaml.Unmarshal(data, &cfg); err != nil {
		return err
	}

	GlobalConfig = &cfg
	return nil
}