From 7c24f39a0fc8bb07dc9db4f5fecd3468705b1e37 Mon Sep 17 00:00:00 2001
From: Quey-Liang Kao <s101062801@m101.nthu.edu.tw>
Date: Mon, 14 Aug 2017 16:34:33 +0800
Subject: Implement the "en" feature: Editting notes

---
 todolist/parser.go      | 30 ++++++++++++++++++++++++++++--
 todolist/parser_test.go |  7 +++++++
 2 files changed, 35 insertions(+), 2 deletions(-)

(limited to 'todolist')

diff --git a/todolist/parser.go b/todolist/parser.go
index 3883454..42af133 100644
--- a/todolist/parser.go
+++ b/todolist/parser.go
@@ -99,9 +99,8 @@ func (p *Parser) ParseNotes(todo *Todo, input string) string {
 		return "list"
 
 	case "dn":
-		rmid, err := strconv.Atoi(matches[2])
+		rmid, err := p.getNoteID(matches[2])
 		if err != nil {
-			fmt.Println("wrong note id")
 			return ""
 		}
 
@@ -113,12 +112,39 @@ func (p *Parser) ParseNotes(todo *Todo, input string) string {
 		}
 		fmt.Println("Could not found note id")
 		return ""
+
+	case "en":
+		r1, _ := regexp.Compile(`(\d)+\s+(.*)?`)
+		tail := r1.FindStringSubmatch(matches[2])
+		edid, err := p.getNoteID(tail[1])
+		if err != nil {
+			return ""
+		}
+
+		for id, _ := range todo.Notes {
+			if id == edid {
+				todo.Notes[id] = tail[2]
+				return "edit"
+			}
+		}
+
+		fmt.Println("Could not found note id")
+		return ""
 	}
 
 	fmt.Println("Could not match command or id")
 	return ""
 }
 
+func (p *Parser) getNoteID(input string) (int, error) {
+	ret, err := strconv.Atoi(input)
+	if err != nil {
+		fmt.Println("wrong note id")
+		return -1, err
+	}
+	return ret, nil
+}
+
 func (p *Parser) hasDue(input string) bool {
 	r1, _ := regexp.Compile(`due \w+$`)
 	r2, _ := regexp.Compile(`due \w+ \d+$`)
diff --git a/todolist/parser_test.go b/todolist/parser_test.go
index e5c7007..2c4fd25 100644
--- a/todolist/parser_test.go
+++ b/todolist/parser_test.go
@@ -85,6 +85,13 @@ func TestParseNotes(t *testing.T) {
 		t.Error("Expected note 1 to be 'www.google.com' but got", todo.Notes[0])
 	}
 
+	if parser.ParseNotes(todo, "en 1 0 www.duckduckgo.com") != "edit" {
+		t.Error("Expected Notes to be editted")
+	}
+	if todo.Notes[0] != "www.duckduckgo.com" {
+		t.Error("Expected note 1 to be 'www.duckduckgo.com' but got", todo.Notes[0])
+	}
+
 	if parser.ParseNotes(todo, "dn 1 0") != "delete" {
 		t.Error("Expected Notes to be deleted")
 	}
-- 
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