/*
	Copyright (c) 2021 Arsen Musayelyan

	Permission is hereby granted, free of charge, to any person obtaining a copy
	of this software and associated documentation files (the "Software"), to deal
	in the Software without restriction, including without limitation the rights
	to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
	copies of the Software, and to permit persons to whom the Software is
	furnished to do so, subject to the following conditions:

	The above copyright notice and this permission notice shall be included in all
	copies or substantial portions of the Software.
*/

package scpt

import (
	"errors"
	"fmt"
	"github.com/gen2brain/dlgs"
	"os"
	"os/exec"
)

// Default function to display a dialog
func displayDialog(args map[string]interface{}) (interface{}, error) {
	// Get title
	title, ok := args["title"]
	if !ok {
		return nil, errors.New("title not provided")
	}
	// Get unnamed argument as text
	text, ok := args[""]
	if !ok {
		return nil, errors.New("text not provided")
	}
	// Display correct dialog based on given type
	switch args["type"] {
	case "yesno":
		// Display yes or no dialog, returning bool based on user input
		return dlgs.Question(fmt.Sprint(title), fmt.Sprint(text), true)
	case "info":
		// Display info dialog, returning bool based on success
		return dlgs.Info(fmt.Sprint(title), fmt.Sprint(text))
	case "error":
		// Display error dialog, returning bool based on success
		return dlgs.Error(fmt.Sprint(title), fmt.Sprint(text))
	case "entry":
		// Check if default text given
		defaultText, ok := args["default"]
		if !ok {
			// Set to empty if not given
			defaultText = ""
		}
		// Display entry dialog
		input, _, err := dlgs.Entry(fmt.Sprint(title), fmt.Sprint(text), fmt.Sprint(defaultText))
		// Return user input
		return input, err
	default:
		// If type unknown, return error
		return nil, fmt.Errorf("unknown dialog type: %v", args["type"])
	}
}

// Default function to run a shell script using `sh -c`
func doShellScript(args map[string]interface{}) (interface{}, error) {
	// Get unnamed argument and assert its type as string
	script, ok := args[""].(string)
	// If assertion successful
	if ok {
		// Create new exec.Cmd containing `sh -c <script>`
		cmd := exec.Command("sh", "-c", script)
		// Set command I/O
		cmd.Stdout = os.Stdout
		cmd.Stdin = os.Stdin
		cmd.Stderr = os.Stderr
		// Run command
		_ = cmd.Run()
		return "", nil
	} else {
		return nil, errors.New("script not provided")
	}
}