package termui
import (
"fmt"
"github.com/MichaelMure/git-bug/bug"
"github.com/MichaelMure/git-bug/cache"
"github.com/MichaelMure/git-bug/util"
"github.com/dustin/go-humanize"
"github.com/jroimartin/gocui"
)
const bugTableView = "bugTableView"
const bugTableHeaderView = "bugTableHeaderView"
const bugTableFooterView = "bugTableFooterView"
const bugTableInstructionView = "bugTableInstructionView"
type bugTable struct {
repo cache.RepoCacher
allIds []string
bugs []cache.BugCacher
pageCursor int
selectCursor int
}
func newBugTable(cache cache.RepoCacher) *bugTable {
return &bugTable{
repo: cache,
pageCursor: 0,
selectCursor: 0,
}
}
func (bt *bugTable) layout(g *gocui.Gui) error {
maxX, maxY := g.Size()
if maxY < 4 {
// window too small !
return nil
}
v, err := g.SetView(bugTableHeaderView, -1, -1, maxX, 3)
if err != nil {
if err != gocui.ErrUnknownView {
return err
}
v.Frame = false
}
v.Clear()
bt.renderHeader(v, maxX)
v, err = g.SetView(bugTableView, -1, 1, maxX, maxY-3)
if err != nil {
if err != gocui.ErrUnknownView {
return err
}
v.Frame = false
v.Highlight = true
v.SelBgColor = gocui.ColorWhite
v.SelFgColor = gocui.ColorBlack
// restore the cursor
// window is too small to set the cursor properly, ignoring the error
_ = v.SetCursor(0, bt.selectCursor)
}
_, viewHeight := v.Size()
err = bt.paginate(viewHeight)
if err != nil {
return err
}
err = bt.cursorClamp(v)
if err != nil {
return err
}
v.Clear()
bt.render(v, maxX)
v, err = g.SetView(bugTableFooterView, -1, maxY-4, maxX, maxY)
if err != nil {
if err != gocui.ErrUnknownView {
return err
}
v.Frame = false
}
v.Clear()
bt.renderFooter(v, maxX)
v, err = g.SetView(bugTableInstructionView, -1, maxY-2, maxX, maxY)
if err != nil {
if err != gocui.ErrUnknownView {
return err
}
v.Frame = false
v.BgColor = gocui.ColorBlue
fmt.Fprintf(v, "[q] Quit [←,h] Previous page [↓,j] Down [↑,k] Up [→,l] Next page [enter] Open bug [n] New bug")
}
_, err = g.SetCurrentView(bugTableView)
return err
}
func (bt *bugTable) keybindings(g *gocui.Gui) error {
// Quit
if err := g.SetKeybinding(bugTableView, 'q', gocui.ModNone, quit); err != nil {
return err
}
// Down
if err := g.SetKeybinding(bugTableView, 'j', gocui.ModNone,
bt.cursorDown); err != nil {
return err
}
if err := g.SetKeybinding(bugTableView, gocui.KeyArrowDown, gocui.ModNone,
bt.cursorDown); err != nil {
return err
}
// Up
if err := g.SetKeybinding(bugTableView, 'k', gocui.ModNone,
bt.cursorUp); err != nil {
return err
}
if err := g.SetKeybinding(bugTableView, gocui.KeyArrowUp, gocui.ModNone,
bt.cursorUp); err != nil {
return err
}
// Previous page
if err := g.SetKeybinding(bugTableView, 'h', gocui.ModNone,
bt.previousPage); err != nil {
return err
}
if err := g.SetKeybinding(bugTableView, gocui.KeyArrowLeft, gocui.ModNone,
bt.previousPage); err != nil {
return err
}
if err := g.SetKeybinding(bugTableView, gocui.KeyPgup, gocui.ModNone,
bt.previousPage); err != nil {
return err
}
// Next page
if err := g.SetKeybinding(bugTableView, 'l', gocui.ModNone,
bt.nextPage); err != nil {
return err
}
if err := g.SetKeybinding(bugTableView, gocui.KeyArrowRight, gocui.ModNone,
bt.nextPage); err != nil {
return err
}
if err := g.SetKeybinding(bugTableView, gocui.KeyPgdn, gocui.ModNone,
bt.nextPage); err != nil {
return err
}
// New bug
if err := g.SetKeybinding(bugTableView, 'n', gocui.ModNone,
bt.newBug); err != nil {
return err
}
// Open bug
if err := g.SetKeybinding(bugTableView, gocui.KeyEnter, gocui.ModNone,
bt.openBug); err != nil {
return err
}
return nil
}
func (bt *bugTable) disable(g *gocui.Gui) error {
if err := g.DeleteView(bugTableView); err != nil {
return err
}
if err := g.DeleteView(bugTableHeaderView); err != nil {
return err
}
if err := g.DeleteView(bugTableFooterView); err != nil {
return err
}
if err := g.DeleteView(bugTableInstructionView); err != nil {
return err
}
return nil
}
func (bt *bugTable) paginate(max int) error {
allIds, err := bt.repo.AllBugIds()
if err != nil {
return err
}
bt.allIds = allIds
return bt.doPaginate(allIds, max)
}
func (bt *bugTable) doPaginate(allIds []string, max int) error {
// clamp the cursor
bt.pageCursor = maxInt(bt.pageCursor, 0)
bt.pageCursor = minInt(bt.pageCursor, len(allIds))
nb := minInt(len(allIds)-bt.pageCursor, max)
if nb < 0 {
bt.bugs = []cache.BugCacher{}
return nil
}
// slice the data
ids := allIds[bt.pageCursor : bt.pageCursor+nb]
bt.bugs = make([]cache.BugCacher, len(ids))
for i, id := range ids {
b, err := bt.repo.ResolveBug(id)
if err != nil {
return err
}
bt.bugs[i] = b
}
return nil
}
func (bt *bugTable) getTableLength() int {
return len(bt.bugs)
}
func (bt *bugTable) getColumnWidths(maxX int) map[string]int {
m := make(map[string]int)
m["id"] = 10
m["status"] = 8
left := maxX - 5 - m["id"] - m["status"]
m["summary"] = maxInt(11, left/6)
left -= m["summary"]
m["lastEdit"] = maxInt(19, left/6)
left -= m["lastEdit"]
m["author"] = maxInt(left*2/5, 15)
m["title"] = maxInt(left-m["author"], 10)
return m
}
func (bt *bugTable) render(v *gocui.View, maxX int) {
columnWidths := bt.getColumnWidths(maxX)
for _, b := range bt.bugs {
person := bug.Person{}
snap := b.Snapshot()
if len(snap.Comments) > 0 {
create := snap.Comments[0]
person = create.Author
}
id := util.LeftPaddedString(snap.HumanId(), columnWidths["id"], 2)
status := util.LeftPaddedString(snap.Status.String(), columnWidths["status"], 2)
title := util.LeftPaddedString(snap.Title, columnWidths["title"], 2)
author := util.LeftPaddedString(person.Name, columnWidths["author"], 2)
summary := util.LeftPaddedString(snap.Summary(), columnWidths["summary"], 2)
lastEdit := util.LeftPaddedString(humanize.Time(snap.LastEdit()), columnWidths["lastEdit"], 2)
fmt.Fprintf(v, "%s %s %s %s %s %s\n",
util.Cyan(id),
util.Yellow(status),
title,
util.Magenta(author),
summary,
lastEdit,
)
}
}
func (bt *bugTable) renderHeader(v *gocui.View, maxX int) {
columnWidths := bt.getColumnWidths(maxX)
id := util.LeftPaddedString("ID", columnWidths["id"], 2)
status := util.LeftPaddedString("STATUS", columnWidths["status"], 2)
title := util.LeftPaddedString("TITLE", columnWidths["title"], 2)
author := util.LeftPaddedString("AUTHOR", columnWidths["author"], 2)
summary := util.LeftPaddedString("SUMMARY", columnWidths["summary"], 2)
lastEdit := util.LeftPaddedString("LAST EDIT", columnWidths["lastEdit"], 2)
fmt.Fprintf(v, "\n")
fmt.Fprintf(v, "%s %s %s %s %s %s\n", id, status, title, author, summary, lastEdit)
}
func (bt *bugTable) renderFooter(v *gocui.View, maxX int) {
fmt.Fprintf(v, " \nShowing %d of %d bugs", len(bt.bugs), len(bt.allIds))
}
func (bt *bugTable) cursorDown(g *gocui.Gui, v *gocui.View) error {
_, y := v.Cursor()
y = minInt(y+1, bt.getTableLength()-1)
// window is too small to set the cursor properly, ignoring the error
_ = v.SetCursor(0, y)
bt.selectCursor = y
return nil
}
func (bt *bugTable) cursorUp(g *gocui.Gui, v *gocui.View) error {
_, y := v.Cursor()
y = maxInt(y-1, 0)
// window is too small to set the cursor properly, ignoring the error
_ = v.SetCursor(0, y)
bt.selectCursor = y
return nil
}
func (bt *bugTable) cursorClamp(v *gocui.View) error {
_, y := v.Cursor()
y = minInt(y, bt.getTableLength()-1)
y = maxInt(y, 0)
// window is too small to set the cursor properly, ignoring the error
_ = v.SetCursor(0, y)
bt.selectCursor = y
return nil
}
func (bt *bugTable) nextPage(g *gocui.Gui, v *gocui.View) error {
_, max := v.Size()
allIds, err := bt.repo.AllBugIds()
if err != nil {
return err
}
bt.allIds = allIds
if bt.pageCursor+max >= len(allIds) {
return nil
}
bt.pageCursor += max
return bt.doPaginate(allIds, max)
}
func (bt *bugTable) previousPage(g *gocui.Gui, v *gocui.View) error {
_, max := v.Size()
allIds, err := bt.repo.AllBugIds()
if err != nil {
return err
}
bt.allIds = allIds
bt.pageCursor = maxInt(0, bt.pageCursor-max)
return bt.doPaginate(allIds, max)
}
func (bt *bugTable) newBug(g *gocui.Gui, v *gocui.View) error {
return newBugWithEditor(bt.repo)
}
func (bt *bugTable) openBug(g *gocui.Gui, v *gocui.View) error {
_, y := v.Cursor()
ui.showBug.bug = bt.bugs[bt.pageCursor+y]
return ui.activateWindow(ui.showBug)
}
