1 files changed, 166 insertions, 0 deletions
diff --git a/app/status.go b/app/status.go
new file mode 100644
index 00000000..f6919e29
--- /dev/null
+++ b/app/status.go
@@ -0,0 +1,166 @@
+package app
+
+import (
+	"bytes"
+	"sync"
+	"time"
+
+	"github.com/gdamore/tcell/v2"
+	"github.com/mattn/go-runewidth"
+
+	"git.sr.ht/~rjarry/aerc/config"
+	"git.sr.ht/~rjarry/aerc/lib/state"
+	"git.sr.ht/~rjarry/aerc/lib/templates"
+	"git.sr.ht/~rjarry/aerc/lib/ui"
+	"git.sr.ht/~rjarry/aerc/log"
+)
+
+type StatusLine struct {
+	sync.Mutex
+	stack []*StatusMessage
+	aerc  *Aerc
+	acct  *AccountView
+	err   string
+}
+
+type StatusMessage struct {
+	style   tcell.Style
+	message string
+}
+
+func (status *StatusLine) Invalidate() {
+	ui.Invalidate()
+}
+
+func (status *StatusLine) Draw(ctx *ui.Context) {
+	status.Lock()
+	defer status.Unlock()
+	style := status.uiConfig().GetStyle(config.STYLE_STATUSLINE_DEFAULT)
+	ctx.Fill(0, 0, ctx.Width(), ctx.Height(), ' ', style)
+	switch {
+	case len(status.stack) != 0:
+		line := status.stack[len(status.stack)-1]
+		msg := runewidth.Truncate(line.message, ctx.Width(), "")
+		msg = runewidth.FillRight(msg, ctx.Width())
+		ctx.Printf(0, 0, line.style, "%s", msg)
+	case status.err != "":
+		msg := runewidth.Truncate(status.err, ctx.Width(), "")
+		msg = runewidth.FillRight(msg, ctx.Width())
+		style := status.uiConfig().GetStyle(config.STYLE_STATUSLINE_ERROR)
+		ctx.Printf(0, 0, style, "%s", msg)
+	case status.aerc != nil && status.acct != nil:
+		data := state.NewDataSetter()
+		data.SetPendingKeys(status.aerc.pendingKeys)
+		data.SetState(&status.acct.state)
+		data.SetAccount(status.acct.acct)
+		data.SetFolder(status.acct.Directories().SelectedDirectory())
+		msg, _ := status.acct.SelectedMessage()
+		data.SetInfo(msg, 0, false)
+		table := ui.NewTable(
+			ctx.Height(),
+			config.Statusline.StatusColumns,
+			config.Statusline.ColumnSeparator,
+			nil,
+			func(*ui.Table, int) tcell.Style { return style },
+		)
+		var buf bytes.Buffer
+		cells := make([]string, len(table.Columns))
+		for c, col := range table.Columns {
+			err := templates.Render(col.Def.Template, &buf,
+				data.Data())
+			if err != nil {
+				log.Errorf("%s", err)
+				cells[c] = err.Error()
+			} else {
+				cells[c] = buf.String()
+			}
+			buf.Reset()
+		}
+		table.AddRow(cells, nil)
+		table.Draw(ctx)
+	}
+}
+
+func (status *StatusLine) Update(acct *AccountView) {
+	status.acct = acct
+	status.Invalidate()
+}
+
+func (status *StatusLine) SetError(err string) {
+	prev := status.err
+	status.err = err
+	if prev != status.err {
+		status.Invalidate()
+	}
+}
+
+func (status *StatusLine) Clear() {
+	status.SetError("")
+	status.acct = nil
+}
+
+func (status *StatusLine) Push(text string, expiry time.Duration) *StatusMessage {
+	status.Lock()
+	defer status.Unlock()
+	log.Debugf(text)
+	msg := &StatusMessage{
+		style:   status.uiConfig().GetStyle(config.STYLE_STATUSLINE_DEFAULT),
+		message: text,
+	}
+	status.stack = append(status.stack, msg)
+	go (func() {
+		defer log.PanicHandler()
+
+		time.Sleep(expiry)
+		status.Lock()
+		defer status.Unlock()
+		for i, m := range status.stack {
+			if m == msg {
+				status.stack = append(status.stack[:i], status.stack[i+1:]...)
+				break
+			}
+		}
+		status.Invalidate()
+	})()
+	status.Invalidate()
+	return msg
+}
+
+func (status *StatusLine) PushError(text string) *StatusMessage {
+	log.Errorf(text)
+	msg := status.Push(text, 10*time.Second)
+	msg.Color(status.uiConfig().GetStyle(config.STYLE_STATUSLINE_ERROR))
+	return msg
+}
+
+func (status *StatusLine) PushWarning(text string) *StatusMessage {
+	log.Warnf(text)
+	msg := status.Push(text, 10*time.Second)
+	msg.Color(status.uiConfig().GetStyle(config.STYLE_STATUSLINE_WARNING))
+	return msg
+}
+
+func (status *StatusLine) PushSuccess(text string) *StatusMessage {
+	log.Tracef(text)
+	msg := status.Push(text, 10*time.Second)
+	msg.Color(status.uiConfig().GetStyle(config.STYLE_STATUSLINE_SUCCESS))
+	return msg
+}
+
+func (status *StatusLine) Expire() {
+	status.Lock()
+	defer status.Unlock()
+	status.stack = nil
+}
+
+func (status *StatusLine) uiConfig() *config.UIConfig {
+	return status.aerc.SelectedAccountUiConfig()
+}
+
+func (status *StatusLine) SetAerc(aerc *Aerc) {
+	status.aerc = aerc
+}
+
+func (msg *StatusMessage) Color(style tcell.Style) {
+	msg.style = style
+}