package config

import (
	"os"
	"path/filepath"

	"github.com/spf13/viper"
)

// Load initializes the configuration from Viper
func Load() {
	home, err := os.UserHomeDir()
	if err != nil {
		// Fall back to current directory if home not found
		home = "."
	}
	configPath := filepath.Join(home, ".config", "grokkit")

	viper.SetConfigName("config")
	viper.SetConfigType("toml")
	viper.AddConfigPath(configPath)
	viper.AddConfigPath(".")
	viper.AutomaticEnv()

	viper.SetDefault("default_model", "grok-4")
	viper.SetDefault("temperature", 0.7)
	viper.SetDefault("log_level", "info")
	viper.SetDefault("timeout", 60)

	viper.SetDefault("commands.agent.model", "grok-4")
	viper.SetDefault("commands.chat.model", "grok-4")
	viper.SetDefault("commands.commit.model", "grok-4")
	viper.SetDefault("commands.commitmsg.model", "grok-4")
	viper.SetDefault("commands.edit.model", "grok-4")
	viper.SetDefault("commands.history.model", "grok-4")
	viper.SetDefault("commands.lint.model", "grok-4-1-fast-non-reasoning")
	viper.SetDefault("commands.prdescribe.model", "grok-4")
	viper.SetDefault("commands.review.model", "grok-4")
	viper.SetDefault("commands.docs.model", "grok-4")
	viper.SetDefault("commands.query.model", "grok-4-1-fast-non-reasoning")

	// Config file is optional, so we ignore read errors
	_ = viper.ReadInConfig()
}

// GetModel returns the model to use for a specific command, considering flags and aliases
func GetModel(commandName string, flagModel string) string {
	if flagModel != "" {
		if alias := viper.GetString("aliases." + flagModel); alias != "" {
			return alias
		}
		return flagModel
	}
	cmdModel := viper.GetString("commands." + commandName + ".model")
	if cmdModel != "" {
		return cmdModel
	}
	return viper.GetString("default_model")
}

// GetTemperature returns the temperature from the configuration
func GetTemperature() float64 {
	return viper.GetFloat64("temperature")
}

// GetTimeout returns the timeout from the configuration
func GetTimeout() int {
	timeout := viper.GetInt("timeout")
	if timeout <= 0 {
		return 60 // Default 60 seconds
	}
	return timeout
}

// GetLogLevel returns the log level from the configuration
func GetLogLevel() string {
	return viper.GetString("log_level")
}