chore: splitting monolith into packages

commands/add_task.go

@@ -0,0 +1,20 @@
+package commands
+
+import (
+	"fmt"
+	"gotask-cli/models"
+	"time"
+)
+
+func AddTask(desc string, backlog []models.Task) []models.Task {
+	newtask := models.Task{
+		Id:          uint(len(backlog)) + 1,
+		Description: desc,
+		Status:      0,
+		Created:     time.Now().Unix(),
+		Updated:     -1}
+
+	fmt.Printf("New task \"%s\" added to do @ id=%d", newtask.Description, newtask.Id)
+	backlog = append(backlog, newtask)
+	return backlog
+}

commands/help.go

@@ -0,0 +1,9 @@
+package commands
+
+import (
+	"fmt"
+)
+
+func Help() {
+	fmt.Println("Hang in there, will do the help stuff some day !")
+}

commands/list_tasks.go

@@ -0,0 +1,10 @@
+package commands
+
+import (
+	"gotask-cli/models"
+	"gotask-cli/utils"
+)
+
+func ListTasks(backlog []models.Task) {
+	utils.PrintTasksAsATable(backlog)
+}

gotask-cli.go

@@ -1,143 +1,37 @@
 package main
 
 import (
-	"encoding/json"
-	"errors"
 	"fmt"
 	"os"
-	"time"
 
-	"github.com/jedib0t/go-pretty/v6/table"
+	"gotask-cli/commands"
-)
+	"gotask-cli/utils"
-
-type Status int
-
-const (
-	todo Status = iota
-	doing
-	done
 )
 
 const path string = "./tasks.json"
-const tempPath string = "./tasks.save"
-
-var statusName = map[Status]string{
-	todo:  "todo",
-	doing: "doing",
-	done:  "done",
-}
-
-type task struct {
-	Id          uint
-	Description string
-	Status      Status
-	Created     int64
-	Updated     int64
-}
-
-var backlog []task
-
-func initBacklog() {
-	if _, err := os.Stat(path); err == nil {
-		loadBacklog()
-
-	} else if errors.Is(err, os.ErrNotExist) {
-		// path does not exist
-		f, err := os.Create(path)
-		check(err)
-		defer f.Close()
-		loadBacklog()
-
-	} else {
-		check(err)
-		os.Exit(1)
-	}
-}
-
-func loadBacklog() {
-	content, err := os.ReadFile(path)
-	check(err)
-	err = json.Unmarshal([]byte(content), &backlog)
-	check(err)
-}
-
-func check(e error) {
-	if e != nil {
-		panic(e)
-	}
-}
-
-func printTasksAsATable(tasks []task) {
-	t := table.NewWriter()
-	t.SetOutputMirror(os.Stdout)
-	t.AppendHeader(table.Row{"Id", "Description", "Status", "Created", "Updated"})
-	for _, v := range tasks {
-		var updated string
-		if v.Updated == -1 {
-			updated = ""
-		} else {
-			updated = time.Unix(v.Updated, 0).Format(time.DateTime)
-		}
-		t.AppendRow([]interface{}{
-			v.Id,
-			v.Description,
-			statusName[v.Status],
-			time.Unix(v.Created, 0).Format(time.DateTime),
-			updated,
-		})
-	}
-	t.Render()
-}
-
-func addTask(desc string) {
-	newtask := task{
-		Id:          uint(len(backlog)) + 1,
-		Description: desc,
-		Status:      0,
-		Created:     time.Now().Unix(),
-		Updated:     -1}
-
-	fmt.Printf("New task \"%s\" added to do @ id=%d", newtask.Description, newtask.Id)
-	backlog = append(backlog, newtask)
-}
-
-func saveBacklog() {
-	if _, err := os.Stat(tempPath); err == nil {
-		err = os.Remove(tempPath)
-	} else if errors.Is(err, os.ErrNotExist) {
-	} else {
-		check(err)
-		os.Exit(1)
-	}
-	f, err := os.Create(tempPath)
-	check(err)
-	defer f.Close()
-	backlogJSON, _ := json.MarshalIndent(backlog, "", "\t")
-	f.Write(backlogJSON)
-
-	err = os.Rename(tempPath, path)
-	check(err)
-}
 
 func main() {
-	initBacklog()
+	backlog := utils.InitBacklog(path)
 	if len(os.Args[1:]) >= 1 {
 		switch os.Args[1] {
 		case "help":
-			fmt.Println("S.O.S!")
+			commands.Help()
 		case "add":
 			if len(os.Args[1:]) >= 2 {
-				addTask(os.Args[2])
+				backlog = commands.AddTask(os.Args[2], backlog)
 			} else {
 				fmt.Println("Missing argument")
+				commands.Help()
 			}
 		case "list":
-			printTasksAsATable(backlog)
+			commands.ListTasks(backlog)
 		default:
 			fmt.Println("NO !")
 		}
-		saveBacklog()
+		utils.SaveBacklog(backlog, path)
 	} else {
 		fmt.Println("Missing argument")
+		commands.Help()
+
 	}
 }

models/task.go

@@ -0,0 +1,23 @@
+package models
+
+type status int
+
+const (
+	todo status = iota
+	doing
+	done
+)
+
+var StatusName = map[status]string{
+	todo:  "todo",
+	doing: "doing",
+	done:  "done",
+}
+
+type Task struct {
+	Id          uint
+	Description string
+	Status      status
+	Created     int64
+	Updated     int64
+}

utils/err_checker.go

@@ -0,0 +1,7 @@
+package utils
+
+func Check(e error) {
+	if e != nil {
+		panic(e)
+	}
+}

utils/read_backlog.go

@@ -0,0 +1,32 @@
+package utils
+
+import (
+	"encoding/json"
+	"errors"
+	"gotask-cli/models"
+	"os"
+)
+
+func InitBacklog(path string) []models.Task {
+	if _, err := os.Stat(path); err == nil {
+
+	} else if errors.Is(err, os.ErrNotExist) {
+		f, err := os.Create(path)
+		Check(err)
+		defer f.Close()
+
+	} else {
+		Check(err)
+		os.Exit(1)
+	}
+	return loadBacklog(path)
+}
+
+func loadBacklog(path string) []models.Task {
+	var backlog []models.Task
+	content, err := os.ReadFile(path)
+	Check(err)
+	err = json.Unmarshal([]byte(content), &backlog)
+	Check(err)
+	return backlog
+}

utils/table_render.go

@@ -0,0 +1,31 @@
+package utils
+
+import (
+	"gotask-cli/models"
+	"os"
+	"time"
+
+	"github.com/jedib0t/go-pretty/v6/table"
+)
+
+func PrintTasksAsATable(tasks []models.Task) {
+	t := table.NewWriter()
+	t.SetOutputMirror(os.Stdout)
+	t.AppendHeader(table.Row{"Id", "Description", "Status", "Created", "Updated"})
+	for _, v := range tasks {
+		var updated string
+		if v.Updated == -1 {
+			updated = ""
+		} else {
+			updated = time.Unix(v.Updated, 0).Format(time.DateTime)
+		}
+		t.AppendRow([]interface{}{
+			v.Id,
+			v.Description,
+			models.StatusName[v.Status],
+			time.Unix(v.Created, 0).Format(time.DateTime),
+			updated,
+		})
+	}
+	t.Render()
+}

utils/write_backlog.go

@@ -0,0 +1,29 @@
+package utils
+
+import (
+	"encoding/json"
+	"errors"
+	"os"
+
+	"gotask-cli/models"
+)
+
+const tempPath string = "./tasks.save"
+
+func SaveBacklog(backlog []models.Task, path string) {
+	if _, err := os.Stat(tempPath); err == nil {
+		err = os.Remove(tempPath)
+	} else if errors.Is(err, os.ErrNotExist) {
+	} else {
+		Check(err)
+		os.Exit(1)
+	}
+	f, err := os.Create(tempPath)
+	Check(err)
+	defer f.Close()
+	backlogJSON, _ := json.MarshalIndent(backlog, "", "\t")
+	f.Write(backlogJSON)
+
+	err = os.Rename(tempPath, path)
+	Check(err)
+}