Caching calendar list

Started work on config screen

account_struct.go

@@ -8,6 +8,7 @@ import (
 	"fmt"
 	"log"
 	"net/http"
+	"time"
 
 	"golang.org/x/oauth2"
 	"golang.org/x/oauth2/google"
@@ -16,8 +17,10 @@ import (
 )
 
 type Account struct {
-	CC      *CalClient
-	Service *calendar.Service
+	CC           *CalClient
+	Service      *calendar.Service
+	CalendarList []Calendar
+	CalListUseBy time.Time
 }
 
 func GetAccount(secret, token []byte) (*Account, error) {
@@ -43,20 +46,24 @@ func (a *Account) GetTodaysEvents() []Event {
 }
 
 func (a *Account) GetDefaultCalendar() *Calendar {
-	c, _ := state.account.Service.CalendarList.Get("primary").Do()
+	c, _ := a.Service.CalendarList.Get("primary").Do()
 	return GoogleCalendarToLocal(c)
 }
 
 func (a *Account) GetCalendarList() []Calendar {
-	// TODO: Check if we have the calendar list cached
+	if time.Now().Before(a.CalListUseBy) {
+		return a.CalendarList
+	}
 	var ret []Calendar
-	calList, err := state.account.Service.CalendarList.List().Do()
+	calList, err := a.Service.CalendarList.List().Do()
 	if err != nil {
 		return ret
 	}
 	for _, c := range calList.Items {
 		ret = append(ret, *GoogleCalendarToLocal(c))
 	}
+	a.CalendarList = ret
+	a.CalListUseBy = time.Now().Add(time.Hour * 6)
 	return ret
 }
 

main.go

@@ -1,14 +1,17 @@
 package main
 
 import (
+	"encoding/json"
 	"fmt"
 	"io/ioutil"
 	"log"
 	"os"
 	"sort"
 	"strings"
+	"time"
 
 	"github.com/br0xen/user-config"
+	"github.com/jroimartin/gocui"
 )
 
 const (
@@ -17,11 +20,14 @@ const (
 )
 
 type AppState struct {
-	Name         string
-	Version      int
-	ClientSecret []byte
-	cfg          *userConfig.Config
-	account      *Account
+	Name             string
+	Version          int
+	ClientSecret     []byte
+	cfg              *userConfig.Config
+	account          *Account
+	defaultCalendars []string
+
+	StatusMsg string
 }
 
 var state *AppState
@@ -38,9 +44,6 @@ func main() {
 
 	if len(os.Args) > 1 {
 		op = os.Args[1]
-		switch os.Args[1] {
-		case "--reinit":
-		}
 	} else {
 		op = "today"
 	}
@@ -54,6 +57,7 @@ func main() {
 			fmt.Println("Deleting Key: " + v)
 			state.cfg.DeleteKey(v)
 		}
+
 	case "today":
 		// Show everything on the calendar for today
 		InitComm()
@@ -61,12 +65,16 @@ func main() {
 		list := state.account.GetCalendarList()
 		var todayEvents []Event
 		if len(list) > 0 {
-			for i := range list {
-				if list[i].Deleted {
-					// Deleted calendar, next please
-					continue
+			for defIdx := range state.defaultCalendars {
+				for i := range list {
+					if list[i].Deleted {
+						// Deleted calendar, next please
+						continue
+					}
+					if state.defaultCalendars[defIdx] == list[i].Id {
+						todayEvents = append(todayEvents, list[i].GetTodaysEvents()...)
+					}
 				}
-				todayEvents = append(todayEvents, list[i].GetTodaysEvents()...)
 			}
 			sort.Sort(ByStartTime(todayEvents))
 			for _, e := range todayEvents {
@@ -80,6 +88,10 @@ func main() {
 			fmt.Printf("No calendars found.\n")
 		}
 
+	case "config":
+		InitComm()
+		DoConfig()
+
 	case "defaults":
 		// Show Defaults
 		InitComm()
@@ -97,34 +109,8 @@ func main() {
 		// Just initialize communications and bail
 		InitComm()
 	}
-
-	//fmt.Println("\n-====-\n")
-
-	/*
-		t := time.Now().Format(time.RFC3339)
-		events, err := srv.Events.List("primary").ShowDeleted(false).
-			SingleEvents(true).TimeMin(t).MaxResults(10).OrderBy("startTime").Do()
-		if err != nil {
-			log.Fatalf("Unable to retrieve next ten of the user's events. %v", err)
-		}
-
-		fmt.Println("Upcoming events:")
-		if len(events.Items) > 0 {
-			for _, i := range events.Items {
-				var when string
-				// If the DateTime is an empty string the Event is an all-day Event.
-				// So only Date is available.
-				if i.Start.DateTime != "" {
-					when = i.Start.DateTime
-				} else {
-					when = i.Start.Date
-				}
-				fmt.Printf("%s (%s)\n", i.Summary, when)
-			}
-		} else {
-			fmt.Printf("No upcoming events found.\n")
-		}
-	*/
+	// All done, save the account state
+	saveAccountState()
 }
 
 func InitComm() {
@@ -140,15 +126,20 @@ func InitComm() {
 	// Save the Raw Token
 	state.cfg.SetBytes("Token", state.account.CC.GetRawToken())
 
-	// If the 'defaultCalendars' cfg is set to 'primary', we need to actually but the primary cal id in there
+	// If the 'defaultCalendars' cfg is set to 'primary' (or not at all)
+	// we need to actually but the primary cal id in there
 	var defCal []string
 	defCal, err = state.cfg.GetArray("defaultCalendars")
 	if len(defCal) == 0 || (len(defCal) == 1 && defCal[0] == "primary") {
 		gCal, err := state.account.Service.CalendarList.Get("primary").Do()
 		if err == nil {
-			state.cfg.SetArray("defaultCalendars", []string{gCal.Id})
+			defCal = []string{gCal.Id}
+			state.cfg.SetArray("defaultCalendars", defCal)
 		}
 	}
+	state.defaultCalendars = defCal
+
+	loadAccountState()
 }
 
 func DoVersionCheck() {
@@ -178,3 +169,171 @@ func DoVersionCheck() {
 		confVer, _ = state.cfg.GetInt("version")
 	}
 }
+
+// saveAccountState saves all the bits of cache from the account
+// into our config
+func saveAccountState() {
+	var err error
+	var calListJson []byte
+	if calListJson, err = json.Marshal(state.account.CalendarList); err == nil {
+		if err = state.cfg.SetBytes("calendarList", calListJson); err != nil {
+			fmt.Println("saveAccountState:calendarList error:", err)
+		}
+		if err = state.cfg.SetDateTime("calListUseBy", state.account.CalListUseBy); err != nil {
+			fmt.Println("saveAccountState:calListUseBy error:", err)
+		}
+	}
+	if err = state.cfg.SetArray("defaultCalendars", state.defaultCalendars); err != nil {
+		fmt.Println("saveAccountState:defaultCalendars error:", err)
+	}
+}
+
+// loadAccountState loads all the bits of cache from the config
+// into the account
+func loadAccountState() {
+	var err error
+	var calListJson []byte
+	calListJson = state.cfg.GetBytes("calendarList")
+	if err = json.Unmarshal(calListJson, &state.account.CalendarList); err == nil {
+		if len(state.account.CalendarList) > 0 {
+			if err != nil {
+				fmt.Println("error: ", err)
+			}
+			if state.account.CalListUseBy, err = state.cfg.GetDateTime("calListUseBy"); err != nil {
+				fmt.Println("error: ", err)
+			}
+		}
+	} else {
+		fmt.Println("error: ", err)
+	}
+}
+
+// BEGIN CONFIG SCREEN FUNCTIONS //
+func DoConfig() {
+	g, err := gocui.NewGui(gocui.Output256)
+	if err != nil {
+		log.Panicln(err)
+	}
+	defer g.Close()
+	g.Cursor = true
+	g.SetManagerFunc(configLayout)
+
+	// Set up some keybindings
+	if err := g.SetKeybinding("", gocui.KeyCtrlC, gocui.ModNone, quit); err != nil {
+		log.Panicln(err)
+	}
+	if err := g.SetKeybinding("default_calendars", gocui.KeyArrowUp, gocui.ModNone, cursorUp); err != nil {
+		log.Panicln(err)
+	}
+	if err := g.SetKeybinding("default_calendars", 'k', gocui.ModNone, cursorUp); err != nil {
+		log.Panicln(err)
+	}
+	if err := g.SetKeybinding("default_calendars", gocui.KeyArrowDown, gocui.ModNone, cursorDown); err != nil {
+		log.Panicln(err)
+	}
+	if err := g.SetKeybinding("default_calendars", 'j', gocui.ModNone, cursorDown); err != nil {
+		log.Panicln(err)
+	}
+	if err := g.SetKeybinding("default_calendars", gocui.KeySpace, gocui.ModNone, toggleCalendar); err != nil {
+		log.Panicln(err)
+	}
+	if err := g.SetKeybinding("default_calendars", gocui.KeyEnter, gocui.ModNone, toggleCalendar); err != nil {
+		log.Panicln(err)
+	}
+
+	// Kick off the main loop
+	if err := g.MainLoop(); err != nil && err != gocui.ErrQuit {
+		log.Panicln(err)
+	}
+}
+
+func configLayout(g *gocui.Gui) error {
+	list := state.account.GetCalendarList()
+	height := len(list) + 4
+	width, _ := g.Size()
+	if v, err := g.SetView("default_calendars", 0, 0, width-1, height); err != nil {
+		v.Highlight = true
+		v.SelBgColor = gocui.ColorGreen
+		v.SelFgColor = gocui.ColorBlack
+		if err != gocui.ErrUnknownView {
+			return err
+		}
+		drawCalList(g, v)
+
+		if _, err := g.SetCurrentView("default_calendars"); err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+func quit(g *gocui.Gui, v *gocui.View) error {
+	return gocui.ErrQuit
+}
+
+func toggleCalendar(g *gocui.Gui, v *gocui.View) error {
+	_, cy := v.Cursor()
+	calList := state.account.GetCalendarList()
+	if v != nil {
+		for i := range state.defaultCalendars {
+			state.StatusMsg = time.Now().Format(time.RFC3339)
+			if state.defaultCalendars[i] == calList[cy].Id {
+			}
+		}
+	}
+	drawCalList(g, v)
+	return nil
+}
+
+func cursorUp(g *gocui.Gui, v *gocui.View) error {
+	if v != nil {
+		ox, oy := v.Origin()
+		cx, cy := v.Cursor()
+		if err := v.SetCursor(cx, cy-1); err != nil && oy > 0 {
+			if err := v.SetOrigin(ox, oy-1); err != nil {
+				return err
+			}
+		}
+	}
+	return nil
+}
+
+func cursorDown(g *gocui.Gui, v *gocui.View) error {
+	if v != nil {
+		cx, cy := v.Cursor()
+		if err := v.SetCursor(cx, cy+1); err != nil {
+			ox, oy := v.Origin()
+			if err := v.SetOrigin(ox, oy+1); err != nil {
+				return err
+			}
+		}
+	}
+	return nil
+}
+
+func drawCalList(g *gocui.Gui, v *gocui.View) error {
+	width, _ := g.Size()
+	list := state.account.GetCalendarList()
+	for i := range list {
+		isDef := false
+		for defIdx := range state.defaultCalendars {
+			if list[i].Id == state.defaultCalendars[defIdx] {
+				isDef = true
+				break
+			}
+		}
+		calSumTxt := "["
+		if isDef {
+			calSumTxt += "*"
+		} else {
+			calSumTxt += " "
+		}
+		calSumTxt += "] " + list[i].Summary
+		spc := strings.Repeat(" ", width-len(calSumTxt)-2)
+		fmt.Fprintln(v, calSumTxt+spc)
+	}
+	fmt.Fprintln(v, "Status: "+state.StatusMsg)
+	return nil
+}
+
+// END CONFIG SCREEN FUNCTIONS //