package config

import (
	"fmt"
	"time"

	"github.com/spf13/viper"
)

// Config 应用配置
type Config struct {
	Server  ServerConfig  `mapstructure:"server"`
	Ollama  OllamaConfig  `mapstructure:"ollama"`
	Sys     SysConfig     `mapstructure:"sys"`
	Tools   ToolsConfig   `mapstructure:"tools"`
	Logging LoggingConfig `mapstructure:"logging"`
	Redis   *Redis        `protobuf:"bytes,1,opt,name=Redis,proto3" json:"Redis,omitempty"`
	DB      *DB           `protobuf:"bytes,3,opt,name=TransDB,proto3" json:"TransDB,omitempty"`
}

// SysConfig 系统配置
type SysConfig struct {
	SessionLen int `mapstructure:"session_len"`
}

// ServerConfig 服务器配置
type ServerConfig struct {
	Port int    `mapstructure:"port"`
	Host string `mapstructure:"host"`
}

// OllamaConfig Ollama配置
type OllamaConfig struct {
	BaseURL string        `mapstructure:"base_url"`
	Model   string        `mapstructure:"model"`
	Timeout time.Duration `mapstructure:"timeout"`
}

type Redis struct {
	Host        string `protobuf:"bytes,1,opt,name=host,proto3" json:"host,omitempty"`
	Type        string `protobuf:"bytes,2,opt,name=type,proto3" json:"type,omitempty"`
	Pass        string `protobuf:"bytes,3,opt,name=pass,proto3" json:"pass,omitempty"`
	Key         string `protobuf:"bytes,4,opt,name=key,proto3" json:"key,omitempty"`
	Tls         int32  `protobuf:"varint,5,opt,name=tls,proto3" json:"tls,omitempty"`
	Db          int32  `protobuf:"varint,6,opt,name=db,proto3" json:"db,omitempty"`
	MaxIdle     int32  `protobuf:"varint,7,opt,name=maxIdle,proto3" json:"maxIdle,omitempty"`
	PoolSize    int32  `protobuf:"varint,8,opt,name=poolSize,proto3" json:"poolSize,omitempty"`
	MaxIdleTime int32  `protobuf:"varint,9,opt,name=maxIdleTime,proto3" json:"maxIdleTime,omitempty"`
}

type DB struct {
	Driver      string `protobuf:"bytes,1,opt,name=driver,proto3" json:"driver,omitempty"`
	Source      string `protobuf:"bytes,2,opt,name=source,proto3" json:"source,omitempty"`
	MaxIdle     int32  `protobuf:"varint,3,opt,name=maxIdle,proto3" json:"maxIdle,omitempty"`
	MaxOpen     int32  `protobuf:"varint,4,opt,name=maxOpen,proto3" json:"maxOpen,omitempty"`
	MaxLifetime int32  `protobuf:"varint,5,opt,name=maxLifetime,proto3" json:"maxLifetime,omitempty"`
	IsDebug     bool   `protobuf:"varint,6,opt,name=isDebug,proto3" json:"isDebug,omitempty"`
}

// ToolsConfig 工具配置
type ToolsConfig struct {
	Weather         ToolConfig `mapstructure:"weather"`
	Calculator      ToolConfig `mapstructure:"calculator"`
	ZltxOrderDetail ToolConfig `mapstructure:"zltxOrderDetail"`
	ZltxOrderLog    ToolConfig `mapstructure:"zltxOrderLog"`
	Knowledge       ToolConfig `mapstructure:"knowledge"`
}

// ToolConfig 单个工具配置
type ToolConfig struct {
	Enabled   bool   `mapstructure:"enabled"`
	BaseURL   string `mapstructure:"base_url"`
	APIKey    string `mapstructure:"api_key"`
	BizSystem string `mapstructure:"biz_system"`
}

// LoggingConfig 日志配置
type LoggingConfig struct {
	Level  string `mapstructure:"level"`
	Format string `mapstructure:"format"`
}

// LoadConfig 加载配置
func LoadConfig(configPath string) (*Config, error) {
	viper.SetConfigFile(configPath)
	viper.SetConfigType("yaml")

	// 设置默认值
	//viper.SetDefault("server.port", "8080")
	//viper.SetDefault("server.host", "0.0.0.0")
	//viper.SetDefault("ollama.base_url", "http://localhost:11434")
	//viper.SetDefault("ollama.model", "llama2")
	//viper.SetDefault("ollama.timeout", "30s")
	//viper.SetDefault("logging.level", "info")
	//viper.SetDefault("logging.format", "json")

	// 读取配置文件
	if err := viper.ReadInConfig(); err != nil {
		return nil, fmt.Errorf("failed to read config file: %w", err)
	}

	// 解析配置
	var config Config
	if err := viper.Unmarshal(&config); err != nil {
		return nil, fmt.Errorf("failed to unmarshal config: %w", err)
	}

	return &config, nil
}