Added .gitignore

.gitignore

@@ -0,0 +1,39 @@
+*.o
+*.a
+*.so
+
+# Folders
+_obj
+_test
+
+# Architecture specific extensions/prefixes
+*.[568vq]
+[568vq].out
+
+*.cgo1.go
+*.cgo2.c
+_cgo_defun.c
+_cgo_gotypes.go
+_cgo_export.*
+
+_testmain.go
+
+*.exe
+*.test
+.idea
+tmp/
+*.tmp
+scratch/
+build/
+*.swp
+profile.cov
+gin-bin
+
+# we don't vendor godep _workspace
+**/Godeps/_workspace/**
+
+# OSX stuff
+.DS_Store
+
+# Default name of executable
+simple-rest-server/simple-rest-server

simple-rest-server/delete.go

@@ -0,0 +1,69 @@
+package main
+
+import (
+	"encoding/json"
+	"fmt"
+	"github.com/julienschmidt/httprouter"
+	"io/ioutil"
+	"log"
+	"net/http"
+)
+
+type Remove struct {
+	ID int `json:"id"`
+}
+
+// Delete API call
+func DeleteTask(respWriter http.ResponseWriter, request *http.Request, _ httprouter.Params) {
+	var remove Remove
+	body, err := ioutil.ReadAll(request.Body)
+	if err != nil {
+		fmt.Fprintln(respWriter, "Bad request: %v", err)
+		log.Println(err)
+		respWriter.WriteHeader(400)
+	}
+	err = json.Unmarshal(body, &remove)
+	if err != nil {
+		fmt.Fprintln(respWriter, "Bad request: %v", err)
+		log.Println(err)
+		respWriter.WriteHeader(400)
+	}
+
+	index, err := removeTaskByID(remove.ID)
+	if index == -1 {
+		fmt.Fprintln(respWriter, "Task ID not found. Unable to delete")
+	} else {
+		fmt.Fprintln(respWriter, "Task ID: "+string(index)+" found.")
+	}
+	if err != nil {
+		fmt.Fprintln(respWriter, "Bad request: %v", err)
+		log.Println(err)
+		respWriter.WriteHeader(400)
+	}
+}
+
+func removeTaskByID(taskID int) (int, error) {
+	index, err := getIndexByTaskID(taskID)
+	if err != nil {
+		log.Println(err)
+		return index, err
+	}
+
+	if index == -1 {
+		return index, err
+	} else if index == 0 {
+		accessTasks.Lock()
+		allTasks = allTasks[1:]
+		accessTasks.Unlock()
+	} else if index == len(allTasks)-1 {
+		accessTasks.Lock()
+		allTasks = allTasks[:len(allTasks)-1]
+		accessTasks.Unlock()
+	} else {
+		accessTasks.Lock()
+		allTasks = append(allTasks[:index-1], allTasks[index+1:]...)
+		accessTasks.Unlock()
+	}
+	accessTasks.Unlock()
+	return index, err
+}

simple-rest-server/get.go

@@ -0,0 +1,121 @@
+package main
+
+import (
+	"encoding/json"
+	"fmt"
+	"io/ioutil"
+	"log"
+	"net/http"
+	"strconv"
+	"strings"
+	"time"
+
+	"github.com/julienschmidt/httprouter"
+)
+
+type Search struct {
+	Word       string    `json:"search"`
+	TimeBefore time.Time `json:"before"`
+}
+
+func htmlParagraph(text *string, paragraph string) {
+	*text += "\n<p>" + paragraph + "</p>"
+}
+
+func Index(respWriter http.ResponseWriter, request *http.Request, params httprouter.Params) {
+	htmlOut := `Todo List API.`
+	htmlParagraph(&htmlOut, "/add")
+	htmlParagraph(&htmlOut, "/delete")
+	htmlParagraph(&htmlOut, "/search")
+	htmlParagraph(&htmlOut, "/list")
+	htmlParagraph(&htmlOut, "/checkoff")
+
+	respWriter.Header().Set("Content-Type", "text/html; charset=utf-8")
+	respWriter.Write([]byte(htmlOut))
+}
+
+func ListTask(respWriter http.ResponseWriter, request *http.Request, params httprouter.Params) {
+	output, _ := json.MarshalIndent(allTasks, "", "  ")
+	fmt.Fprintln(respWriter, string(output))
+}
+
+func GetTask(respWriter http.ResponseWriter, request *http.Request, params httprouter.Params) {
+	i, err := strconv.Atoi(params.ByName("id"))
+	if err != nil {
+		fmt.Fprintf(respWriter, "Bad request: %v", err)
+		respWriter.WriteHeader(400)
+		return
+	}
+	i, err = getIndexByTaskID(i)
+	if err != nil {
+		fmt.Fprintf(respWriter, "Bad request: %v", err)
+		respWriter.WriteHeader(400)
+		return
+	}
+	output, _ := json.MarshalIndent(allTasks[i], "", "  ")
+	fmt.Fprintln(respWriter, string(output))
+}
+
+func SearchTask(respWriter http.ResponseWriter, request *http.Request, params httprouter.Params) {
+	var query Search
+	body, err := ioutil.ReadAll(request.Body)
+	if err != nil {
+		fmt.Println(err)
+		fmt.Fprintln(respWriter, "Bad request: %v", err)
+		log.Println(err)
+		respWriter.WriteHeader(400)
+	}
+	err = json.Unmarshal(body, &query)
+	if err != nil {
+		fmt.Fprintln(respWriter, "Bad request: %v", err)
+		log.Println(err)
+		respWriter.WriteHeader(400)
+	}
+
+	var indicies []int
+	fmt.Fprintln(respWriter, "Searching for "+query.Word)
+	timezero := time.Time{}
+	if query.Word != "" {
+		indicies = append(indicies, searchByWord(query.Word)[:]...)
+	} else if query.TimeBefore != timezero {
+		indicies = append(indicies, searchByTime(query.TimeBefore)[:]...)
+	} else {
+		fmt.Println("Undefined search query")
+	}
+
+	if len(indicies) == 0 {
+		fmt.Fprintln(respWriter, "No Results!!!!!")
+	}
+	for _, index := range indicies {
+		accessTasks.Lock()
+		prettyJson, err := json.MarshalIndent(allTasks[index], "", "  ")
+		accessTasks.Unlock()
+		if err != nil {
+			log.Print(err)
+			return
+		}
+		fmt.Fprintln(respWriter, string(prettyJson))
+	}
+}
+
+func searchByWord(query string) (result []int) {
+	accessTasks.Lock()
+	for i, task := range allTasks {
+		if strings.Contains(task.Task, query) {
+			result = append(result, i)
+		}
+	}
+	accessTasks.Unlock()
+	return
+}
+
+func searchByTime(query time.Time) (result []int) {
+	accessTasks.Lock()
+	for i, task := range allTasks {
+		if task.TimeAdded.Before(query) || task.TimeAdded == query {
+			result = append(result, i)
+		}
+	}
+	accessTasks.Unlock()
+	return
+}

simple-rest-server/main.go

@@ -1,30 +1,123 @@
 package main
 
 import (
+	"encoding/csv"
+	"errors"
 	"fmt"
+	"io/ioutil"
 	"log"
 	"net/http"
+	"os"
+	"sync"
+	"time"
 
 	"github.com/julienschmidt/httprouter"
 )
 
-func Index(respWriter http.ResponseWriter, request *http.Request, _ httprouter.Params) {
-	fmt.Fprintln(respWriter, "ToDo RESTful App")
+type Task struct {
+	ID        int
+	Checked   bool      `json:"checked"`
+	TimeAdded time.Time `json:"time_added"`
+	Deadline  time.Time `json:"deadline"`
+	Task      string    `json:"task"`
 }
 
-func TodoIndex(respWriter http.ResponseWriter, request *http.Request, _ httprouter.Params) {
-	fmt.Fprintln(respWriter, "Return ToDo List")
-}
+var (
+	allTasks    []Task
+	accessTasks = &sync.Mutex{}
+)
 
-func TodoShow(respWriter http.ResponseWriter, request *http.Request, params httprouter.Params) {
-	fmt.Fprintf(respWriter, "Show Details for ToDo '%s'\n", params.ByName("todoId"))
-}
+const (
+	timeFormat = time.RFC3339
+)
 
 func main() {
+
+	// Loading the csv file into the RAM
+	csvfile, err := os.Open("tasks.csv")
+	ifPanic(err)
+
+	// Loading csv with csv Library returns [][]string
+	rawCSVdata, err := csv.NewReader(csvfile).ReadAll()
+	ifPanic(err)
+
+	// For each line in csv do....
+	for i, each := range rawCSVdata {
+		timeAdded, err := time.Parse(timeFormat, each[2])
+		ifPanic(err)
+		deadline, err := time.Parse(timeFormat, each[3])
+		ifPanic(err)
+		status := false
+		if each[1] == "true" {
+			status = true
+		}
+		allTasks = append(allTasks, Task{ID: i, Task: each[4], TimeAdded: timeAdded, Deadline: deadline, Checked: status})
+	}
+
+	// Autosave every minutes
+	csvfile.Close()
+
+	// go func() starts a new process.
+	go func() {
+		for {
+			saveCSV()
+			time.Sleep(5 * time.Second)
+		}
+	}()
+
+	// Start the API
 	router := httprouter.New()
-	router.GET("/", Index)
-	router.GET("/todos", TodoIndex)
-	router.GET("/todos/:todoId", TodoShow)
+
+	router.GET("/v1/task", ListTask)
+	router.POST("/v1/task", AddTask)
+	//router.PUT("/v1/task", nil)
+	//router.DELETE("/v1/task", nil)
+
+	router.GET("/v1/task/:id", GetTask)
+	//router.POST("/v1/task/:id", nil)
+	router.PUT("/v1/task/:id", Modify)
+	router.DELETE("/v1/task/:id", DeleteTask)
+
+	router.GET("/v1/query", SearchTask)
 
 	log.Fatal(http.ListenAndServe(":8080", router))
 }
+
+// Function to save the CSV
+func saveCSV() error {
+	myString := ""
+	accessTasks.Lock()
+	for _, each := range allTasks {
+		myString += fmt.Sprintf("%v,%v,%v,%v,\"%v\"\n", each.ID, each.Checked, each.TimeAdded.Format(timeFormat), each.Deadline.Format(timeFormat), each.Task)
+	}
+	err := ioutil.WriteFile("tasks.csv", []byte(myString), 0644)
+	accessTasks.Unlock()
+	return err
+}
+
+func ifPanic(err error) {
+	if err != nil {
+		// Maybe change to log later
+		fmt.Println(err)
+		os.Exit(1)
+	}
+}
+
+func getIndexByTaskID(taskID int) (index int, err error) {
+	// If we didn't find the task ID - return an error and set the index to -1...
+	err = errors.New("GetIndexByTaskID: TaskID " + string(taskID) + " Not Found.")
+	index = -1
+
+	accessTasks.Lock()
+
+	// Search for the taskID and return the index.
+	for i, line := range allTasks {
+		if taskID == line.ID {
+			index = i
+			err = nil
+			break
+		}
+	}
+	accessTasks.Unlock()
+	return
+}