package config

import (
	"bytes"
	"os"

	"github.com/spf13/viper"
)

type AgentConfig struct {
	Name     string       `yaml:"name,omitempty"`
	Mode     string       `yaml:"mode,omitempty"`
	Point    string       `yaml:"point"`
	NodeType int          `yaml:"nodeType"`
	Delay    int          `yaml:"delay"`
	Logging  LogOptions   `yaml:"logging"`
	Node     HpdsNode     `yaml:"node,omitempty"`
	Funcs    []FuncConfig `yaml:"functions,omitempty"`
}

type FuncConfig struct {
	Name    string `yaml:"name"`
	DataTag uint8  `yaml:"dataTag"`
}

type HpdsNode struct {
	Host  string `yaml:"host"`
	Port  int    `yaml:"port"`
	Token string `yaml:"token,omitempty"`
}

type LogOptions struct {
	Path            string `yaml:"path" json:"path" toml:"path"`                                  // 文件保存地方
	Prefix          string `yaml:"prefix" json:"prefix" toml:"prefix"`                            // 日志文件前缀
	ErrorFileSuffix string `yaml:"errorFileSuffix" json:"errorFileSuffix" toml:"errorFileSuffix"` // error日志文件后缀
	WarnFileSuffix  string `yaml:"warnFileSuffix" json:"warnFileSuffix" toml:"warnFileSuffix"`    // warn日志文件后缀
	InfoFileSuffix  string `yaml:"infoFileSuffix" json:"infoFileSuffix" toml:"infoFileSuffix"`    // info日志文件后缀
	DebugFileSuffix string `yaml:"debugFileSuffix" json:"debugFileSuffix" toml:"debugFileSuffix"` // debug日志文件后缀
	Level           string `yaml:"level" json:"level" toml:"level"`                               // 日志等级
	MaxSize         int    `yaml:"maxSize" json:"maxSize" toml:"maxSize"`                         // 日志文件大小（M）
	MaxBackups      int    `yaml:"maxBackups" json:"maxBackups" toml:"maxBackups"`                // 最多存在多少个切片文件
	MaxAge          int    `yaml:"maxAge" json:"maxAge" toml:"maxAge"`                            // 保存的最大天数
	Development     bool   `yaml:"development" json:"development" toml:"development"`             // 是否是开发模式
}

func ParseConfigByFile(path string) (cfg *AgentConfig, err error) {
	buffer, err := os.ReadFile(path)
	if err != nil {
		return nil, err
	}
	return load(buffer)
}

func load(buf []byte) (cfg *AgentConfig, err error) {
	cViper := viper.New()
	cViper.SetConfigType("yaml")
	cfg = new(AgentConfig)
	cViper.ReadConfig(bytes.NewBuffer(buf))
	err = cViper.Unmarshal(cfg)
	if err != nil {
		return nil, err
	}
	return
}