From 0905a863f50d9631e6c44488b952622e75d79785 Mon Sep 17 00:00:00 2001
From: Grant Ammons <gammons@gmail.com>
Date: Sun, 1 May 2016 15:07:45 -0400
Subject: Implement delete logic

---
 todolist/file_store.go | 29 +++++++++++++++++++++++++++++
 1 file changed, 29 insertions(+)

(limited to 'todolist/file_store.go')

diff --git a/todolist/file_store.go b/todolist/file_store.go
index 3b5fbfe..992aeb3 100644
--- a/todolist/file_store.go
+++ b/todolist/file_store.go
@@ -23,6 +23,35 @@ func (f *FileStore) Add(todo *Todo) {
 	f.Data = append(f.Data, *todo)
 }
 
+func (f *FileStore) FindById(id int) *Todo {
+	for _, todo := range f.Data {
+		if todo.Id == id {
+			return &todo
+		}
+	}
+	return nil
+}
+
+func (f *FileStore) Delete(id int) {
+	i := -1
+	for index, todo := range f.Data {
+		if todo.Id == id {
+			i = index
+		}
+	}
+
+	f.Data = append(f.Data[:i], f.Data[i+1:]...)
+}
+
+func (f *FileStore) IndexOf(todoToFind *Todo) int {
+	for i, todo := range f.Data {
+		if todo.Id == todoToFind.Id {
+			return i
+		}
+	}
+	return -1
+}
+
 func (f *FileStore) Load() {
 	data, err := ioutil.ReadFile(f.FileLocation)
 	if err != nil {
-- 
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