package config

import (
	"fmt"

	"github.com/spf13/viper"
)

type Config struct {
	App  AppConfig  `mapstructure:"app"`
	HTTP HTTPConfig `mapstructure:"http"`
}

type AppConfig struct {
	Name string `mapstructure:"name"`
	Env  string `mapstructure:"env"`
}

type HTTPConfig struct {
	Host string `mapstructure:"host"`
	Port int    `mapstructure:"port"`
}

func Load(path string) (*Config, error) {
	v := viper.New()
	// 指定文件，按 .toml 扩展名识别格式
	v.SetConfigFile(path)

	if err := v.ReadInConfig(); err != nil {
		return nil, fmt.Errorf("读取配置失败: %w", err)
	}

	var cfg Config
	if err := v.Unmarshal(&cfg); err != nil {
		return nil, fmt.Errorf("解析配置失败: %w", err)
	}

	return &cfg, nil
}