commandHandlers.go

package main

import (
	"fmt"
	"strconv"
	"strings"
	"time"
)

func handleMarkCommand(userInput string) {
	if !strings.HasPrefix(userInput, "mark-in-progress") && !strings.HasPrefix(userInput, "mark-done") {
		fmt.Println("Error: Unsupported command. Supported commands are: mark-in-progress, mark-done")
		return
	}

	inputs := strings.Split(userInput, " ")
	if len(inputs) < 2 {
		fmt.Println("Error: Missing arguments")
		return
	}
	taskId := inputs[1]
	if id, err := strconv.Atoi(taskId); err == nil {
		index, error := getTaskById(id)
		if error != nil {
			fmt.Println("Error: ", error)
			return
		}
		command := inputs[0]
		if command == "mark-in-progress" {
			TaskList[index].Status = "in-progress"
		} else {
			TaskList[index].Status = "done"
		}
		fmt.Println("Task status was updated successfully")
		writeDataToFile()
	}
}

func handleDeleteCommand(userInput string) {
	input := strings.Trim(userInput, "delete ")
	taskId := strings.Split(input, " ")[0]
	if id, err := strconv.Atoi(taskId); err == nil {
		index, error := getTaskById(id)
		if error != nil {
			fmt.Println(error)
			return
		}
		TaskList = append(TaskList[:index], TaskList[index+1:]...)

		fmt.Printf("Item of ID:%+v has been deleted successfully.\n", id)
		writeDataToFile()
	}
}

func handleUpdateCommand(userInput string) {
	input := strings.Trim(userInput, "update ")
	taskId := strings.Split(input, " ")[0]
	if id, err := strconv.Atoi(taskId); err == nil {
		index, error := getTaskById(id)
		if error != nil {
			fmt.Println("An Error occurred: ", error)
			return
		}
		TaskList[index].Description = strings.Trim(input, fmt.Sprintf("%+v \"", taskId))
		TaskList[index].UpdatedAt = time.Now()
		fmt.Println("Task updated successfully...")
		writeDataToFile()
	} else {
		fmt.Println("Incorrect id format: ", taskId)
	}
}

func handleAddCommand(input string) {
	taskDescription := strings.Trim(input, "add \"")
	addTask(taskDescription)
	writeDataToFile()
}

func handleListCommand(userInput string) {
	inputs := strings.Split(userInput, " ")
	if len(inputs) <= 1 {
		showAllTasks()
		return
	}
	status := inputs[1]
	if status != "done" && status != "todo" && status != "in-progress" {
		fmt.Println("Error: Wrong status provided, available statuses are: done, todo, in-progress")
		return
	}

	showTasksByStatus(status)
}

func handleShowCommand(userInput string) {
	input := strings.Trim(userInput, "show \"")
	if id, err := strconv.Atoi(input); err == nil {
		taskIndex, err := getTaskById(id)
		if err != nil {
			fmt.Println("Error: ", err)
		} else {
			showTask(taskIndex)
		}
	} else {
		fmt.Println("Error: Must provide an integer ID of the task that you would like to show.")
	}
}