Migrate all modules to their own subfolder

Handles #375

modules/gitter/client.go

@@ -0,0 +1,95 @@
+package gitter
+
+import (
+	"bytes"
+	"encoding/json"
+	"fmt"
+	"github.com/wtfutil/wtf/logger"
+	"github.com/wtfutil/wtf/wtf"
+	"io"
+	"io/ioutil"
+	"net/http"
+	"os"
+	"strconv"
+)
+
+func GetMessages(roomId string, numberOfMessages int) ([]Message, error) {
+	var messages []Message
+
+	resp, err := apiRequest("rooms/" + roomId + "/chatMessages?limit=" + strconv.Itoa(numberOfMessages))
+	if err != nil {
+		return nil, err
+	}
+
+	parseJson(&messages, resp.Body)
+
+	return messages, nil
+}
+
+func GetRoom(roomUri string) (*Room, error) {
+	var rooms Rooms
+
+	resp, err := apiRequest("rooms?q=" + roomUri)
+	if err != nil {
+		return nil, err
+	}
+
+	parseJson(&rooms, resp.Body)
+
+	for _, room := range rooms.Results {
+		logger.Log(fmt.Sprintf("room: %s", room))
+		if room.URI == roomUri {
+			return &room, nil
+		}
+	}
+
+	return nil, nil
+}
+
+/* -------------------- Unexported Functions -------------------- */
+
+var (
+	apiBaseURL = "https://api.gitter.im/v1/"
+)
+
+func apiRequest(path string) (*http.Response, error) {
+	req, err := http.NewRequest("GET", apiBaseURL+path, nil)
+	bearer := fmt.Sprintf("Bearer %s", apiToken())
+	req.Header.Add("Authorization", bearer)
+
+	httpClient := &http.Client{}
+	resp, err := httpClient.Do(req)
+	if err != nil {
+		return nil, err
+	}
+
+	if resp.StatusCode < 200 || resp.StatusCode > 299 {
+		return nil, fmt.Errorf(resp.Status)
+	}
+
+	return resp, nil
+}
+
+func parseJson(obj interface{}, text io.Reader) {
+	jsonStream, err := ioutil.ReadAll(text)
+	if err != nil {
+		panic(err)
+	}
+
+	decoder := json.NewDecoder(bytes.NewReader(jsonStream))
+
+	for {
+		if err := decoder.Decode(obj); err == io.EOF {
+			break
+		} else if err != nil {
+			panic(err)
+		}
+	}
+}
+
+func apiToken() string {
+	return wtf.Config.UString(
+		"wtf.mods.gitter.apiToken",
+		os.Getenv("WTF_GITTER_API_TOKEN"),
+	)
+}

modules/gitter/gitter.go

@@ -0,0 +1,28 @@
+package gitter
+
+import "time"
+
+type Rooms struct {
+	Results []Room `json:"results"`
+}
+
+type Room struct {
+	ID   string `json:"id"`
+	Name string `json:"name"`
+	URI  string `json:"uri"`
+}
+
+type User struct {
+	ID          string `json:"id"`
+	Username    string `json:"username"`
+	DisplayName string `json:"displayName"`
+}
+
+type Message struct {
+	ID     string    `json:"id"`
+	Text   string    `json:"text"`
+	HTML   string    `json:"html"`
+	Sent   time.Time `json:"sent"`
+	From   User      `json:"fromUser"`
+	Unread bool      `json:"unread"`
+}

modules/gitter/widget.go

@@ -0,0 +1,181 @@
+package gitter
+
+import (
+	"fmt"
+	"github.com/gdamore/tcell"
+	"github.com/rivo/tview"
+	"github.com/wtfutil/wtf/wtf"
+	"strconv"
+)
+
+const HelpText = `
+ Keyboard commands for Gitter:
+
+   /: Show/hide this help window
+   j: Select the next message in the list
+   k: Select the previous message in the list
+   r: Refresh the data
+
+   arrow down: Select the next message in the list
+   arrow up:   Select the previous message in the list
+`
+
+type Widget struct {
+	wtf.HelpfulWidget
+	wtf.TextWidget
+
+	messages []Message
+	selected int
+}
+
+func NewWidget(app *tview.Application, pages *tview.Pages) *Widget {
+	widget := Widget{
+		HelpfulWidget: wtf.NewHelpfulWidget(app, pages, HelpText),
+		TextWidget:    wtf.NewTextWidget(app, "Gitter", "gitter", true),
+	}
+
+	widget.HelpfulWidget.SetView(widget.View)
+	widget.unselect()
+
+	widget.View.SetScrollable(true)
+	widget.View.SetRegions(true)
+	widget.View.SetInputCapture(widget.keyboardIntercept)
+
+	return &widget
+}
+
+/* -------------------- Exported Functions -------------------- */
+
+func (widget *Widget) Refresh() {
+	if widget.Disabled() {
+		return
+	}
+
+	room, err := GetRoom(wtf.Config.UString("wtf.mods.gitter.roomUri", "wtfutil/Lobby"))
+	if err != nil {
+		widget.View.SetWrap(true)
+		widget.View.SetTitle(widget.Name)
+		widget.View.SetText(err.Error())
+		return
+	}
+
+	if room == nil {
+		return
+	}
+
+	messages, err := GetMessages(room.ID, wtf.Config.UInt("wtf.mods.gitter.numberOfMessages", 10))
+
+	if err != nil {
+		widget.View.SetWrap(true)
+		widget.View.SetTitle(widget.Name)
+		widget.View.SetText(err.Error())
+	} else {
+		widget.messages = messages
+	}
+
+	widget.display()
+	widget.View.ScrollToEnd()
+}
+
+/* -------------------- Unexported Functions -------------------- */
+
+func (widget *Widget) display() {
+	if widget.messages == nil {
+		return
+	}
+
+	widget.View.SetWrap(true)
+	widget.View.Clear()
+	widget.View.SetTitle(widget.ContextualTitle(fmt.Sprintf("%s - %s", widget.Name, wtf.Config.UString("wtf.mods.gitter.roomUri", "wtfutil/Lobby"))))
+	widget.View.SetText(widget.contentFrom(widget.messages))
+	widget.View.Highlight(strconv.Itoa(widget.selected)).ScrollToHighlight()
+}
+
+func (widget *Widget) contentFrom(messages []Message) string {
+	var str string
+	for idx, message := range messages {
+		str = str + fmt.Sprintf(
+			`["%d"][""][%s] [blue]%s [lightslategray]%s: [%s]%s [aqua]%s`,
+			idx,
+			widget.rowColor(idx),
+			message.From.DisplayName,
+			message.From.Username,
+			widget.rowColor(idx),
+			message.Text,
+			message.Sent.Format("Jan 02, 15:04 MST"),
+		)
+
+		str = str + "\n"
+	}
+
+	return str
+}
+
+func (widget *Widget) rowColor(idx int) string {
+	if widget.View.HasFocus() && (idx == widget.selected) {
+		return wtf.DefaultFocussedRowColor()
+	}
+
+	return wtf.RowColor("gitter", idx)
+}
+
+func (widget *Widget) next() {
+	widget.selected++
+	if widget.messages != nil && widget.selected >= len(widget.messages) {
+		widget.selected = 0
+	}
+
+	widget.display()
+}
+
+func (widget *Widget) prev() {
+	widget.selected--
+	if widget.selected < 0 && widget.messages != nil {
+		widget.selected = len(widget.messages) - 1
+	}
+
+	widget.display()
+}
+
+func (widget *Widget) openMessage() {
+	sel := widget.selected
+	if sel >= 0 && widget.messages != nil && sel < len(widget.messages) {
+		message := &widget.messages[widget.selected]
+		wtf.OpenFile(message.Text)
+	}
+}
+
+func (widget *Widget) unselect() {
+	widget.selected = -1
+	widget.display()
+}
+
+func (widget *Widget) keyboardIntercept(event *tcell.EventKey) *tcell.EventKey {
+	switch string(event.Rune()) {
+	case "/":
+		widget.ShowHelp()
+	case "j":
+		widget.next()
+		return nil
+	case "k":
+		widget.prev()
+		return nil
+	case "r":
+		widget.Refresh()
+		return nil
+	}
+
+	switch event.Key() {
+	case tcell.KeyDown:
+		widget.next()
+		return nil
+	case tcell.KeyEsc:
+		widget.unselect()
+		return event
+	case tcell.KeyUp:
+		widget.prev()
+		return nil
+	default:
+		return event
+	}
+}