/
print.go
160 lines (143 loc) · 4.35 KB
/
print.go
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package main
import (
"context"
"encoding/json"
"fmt"
"io/ioutil"
"log"
"net/http"
"os"
"sort"
"time"
"github.com/jubnzv/go-taskwarrior"
"golang.org/x/oauth2"
"golang.org/x/oauth2/google"
"google.golang.org/api/calendar/v3"
"google.golang.org/api/option"
)
// IndexHandler serves the front page
func IndexHandler(w http.ResponseWriter, r *http.Request) error {
data := make(map[string]interface{})
data["url"] = os.Getenv("PRINT_URL")
data["data"] = getTasks()
data["events"] = getEvents()
data["date"] = time.Now().Format("Mon January 2")
return render(w, data, "index.html")
}
// PrintHandler serves the json to print
func PrintHandler(w http.ResponseWriter, r *http.Request) error {
data := make(map[string]interface{})
w.Header().Set("Content-Type", "application/json")
data["data"] = getTasks()
data["events"] = getEvents()
data["date"] = time.Now().Format("Mon January 2")
return render(w, data, "print.html")
}
type event struct {
Time string
Summary string
}
// Retrieve a token, saves the token, then returns the generated client.
func getClient(config *oauth2.Config) *http.Client {
// The file token.json stores the user's access and refresh tokens, and is
// created automatically when the authorization flow completes for the first
// time.
tokFile := "token.json"
tok, err := tokenFromFile(tokFile)
if err != nil {
tok = getTokenFromWeb(config)
saveToken(tokFile, tok)
}
return config.Client(context.Background(), tok)
}
// Request a token from the web, then returns the retrieved token.
func getTokenFromWeb(config *oauth2.Config) *oauth2.Token {
authURL := config.AuthCodeURL("state-token", oauth2.AccessTypeOffline)
fmt.Printf("Go to the following link in your browser then type the "+
"authorization code: \n%v\n", authURL)
var authCode string
if _, err := fmt.Scan(&authCode); err != nil {
log.Fatalf("Unable to read authorization code: %v", err)
}
tok, err := config.Exchange(context.TODO(), authCode)
if err != nil {
log.Fatalf("Unable to retrieve token from web: %v", err)
}
return tok
}
// Retrieves a token from a local file.
func tokenFromFile(file string) (*oauth2.Token, error) {
f, err := os.Open(file)
if err != nil {
return nil, err
}
defer f.Close()
tok := &oauth2.Token{}
err = json.NewDecoder(f).Decode(tok)
return tok, err
}
// Saves a token to a file path.
func saveToken(path string, token *oauth2.Token) {
fmt.Printf("Saving credential file to: %s\n", path)
f, err := os.OpenFile(path, os.O_RDWR|os.O_CREATE|os.O_TRUNC, 0600)
if err != nil {
log.Fatalf("Unable to cache oauth token: %v", err)
}
defer f.Close()
json.NewEncoder(f).Encode(token)
}
func getTasks() []taskwarrior.Task {
tw, _ := taskwarrior.NewTaskWarrior("~/.taskrc")
tw.FetchAllTasks()
tasks := tw.Tasks
for i := len(tasks) - 1; i >= 0; i-- {
task := tasks[i]
if task.Status != "pending" {
tasks = append(tasks[:i],
tasks[i+1:]...)
}
}
sort.Slice(tasks, func(i, j int) bool {
return tasks[i].Urgency > tasks[j].Urgency
})
return tasks
}
func getEvents() []event {
ctx := context.Background()
b, err := ioutil.ReadFile("credentials.json")
if err != nil {
log.Fatalf("Unable to read client secret file: %v", err)
}
// If modifying these scopes, delete your previously saved token.json.
config, err := google.ConfigFromJSON(b, calendar.CalendarReadonlyScope)
if err != nil {
log.Fatalf("Unable to parse client secret file to config: %v", err)
}
client := getClient(config)
srv, err := calendar.NewService(ctx, option.WithHTTPClient(client))
if err != nil {
log.Fatalf("Unable to retrieve Calendar client: %v", err)
}
year, month, day := time.Now().Date()
t := time.Date(year, month, day, 0, 0, 0, 0, time.Local).Format(time.RFC3339)
end := time.Date(year, month, day, 23, 0, 0, 0, time.Local).Format(time.RFC3339)
events, err := srv.Events.List("primary").ShowDeleted(false).
SingleEvents(true).TimeMin(t).TimeMax(end).OrderBy("startTime").Do()
if err != nil {
log.Fatalf("Unable to retrieve next ten of the user's events: %v", err)
}
eventList := []event{}
if len(events.Items) != 0 {
for _, item := range events.Items {
date := item.Start.DateTime
if date == "" {
date = " *"
} else {
eventTime, _ := time.Parse(time.RFC3339, item.Start.DateTime)
date = eventTime.Format("03:04")
}
eventList = append(eventList, event{Time: date, Summary: item.Summary})
}
}
return eventList
}