package main

import (
	"citrons.xyz/talk/client/buffer"
	"citrons.xyz/talk/client/window"
	"citrons.xyz/talk/tui"
	"fmt"
)

type cmdWindowLocation struct {}

type cmdWindow struct {
	buf buffer.Buffer
	input tui.TextInput
	login bool
}

type logMsg struct {
	index int
	text string
	logType logType
}
var lastIndex = 0

type logType int
const (
	logInfo = iota
	logErr
	logCmd
)

func (m logMsg) Id() string {
	return fmt.Sprintf("log.%d", m.index)
}

func (m logMsg) Show(odd bool) {
	var style *tui.Style
	switch m.logType {
	case logErr:
		style = &tui.Style {Bg: colorErr[odd], Fg: tui.White}
	case logCmd:
		style = &tui.Style {Bg: colorCmd[odd], Fg: tui.White}
	}

	tui.Push("", tui.Box {
		Width: tui.Fill, Height: tui.Children, Style: style, Dir: tui.Right,
	})

	tui.Push("", tui.Box {Width: tui.TextSize, Height: tui.TextSize})
	tui.Text("* ", nil)
	tui.Pop()

	tui.Push("", tui.Box {Width: tui.Fill, Height: tui.TextSize})
	tui.Text(m.text, nil)
	tui.Pop()

	tui.Pop()
}

func (l cmdWindowLocation) CreateWindow() window.Window {
	return &globalApp.cmdWindow
}

func (w *cmdWindow) Location() window.Location {
	return cmdWindowLocation {}
}

func (w *cmdWindow) Kill() {}

func (w *cmdWindow) Buffer() *buffer.Buffer {
	return &w.buf
}

func (w *cmdWindow) Input() *tui.TextInput {
	return &w.input
}

func (w *cmdWindow) Send(text string) {
	if w.login {
		w.login = false
		previousText := w.input.Text()
		w.input.SetText("")
		globalApp.auth(text, func(success bool) {
			if !success {
				w.loginMode()
				w.input.SetText(previousText)
			}
		})
	}
	if text == ":wq" {
		globalApp.quit = true
	}
}

func (w *cmdWindow) ShowStatusLine() {
	if !w.login {
		tui.Text("command window", &tui.Style {
			Bg: tui.White, Fg: tui.Black, Italic: true,
		})
	} else {
		tui.Text("[", nil)
		tui.Text("login", &tui.Style {
			Bg: tui.White, Fg: tui.Blue, Bold: true,
		})
		tui.Text("]", nil)
		tui.Text(" username:", nil)
	}
}

func (w *cmdWindow) showPreview() {
	bottom := w.buf.Bottom()
	if bottom == nil {
		return
	}
	msg := bottom.Msg()

	tui.Push("command window container", tui.Box {
		Width: tui.Fill, Height: tui.Children,
	})

	tui.Push(msg.Id(), tui.Box {Width: tui.Fill, Height: tui.Children})
	msg.Show(false)
	tui.Pop()

	tui.Push("command window border", tui.Box {
		Width: tui.Fill, Height: 1, Dir: tui.Left,
		Style: &tui.Style {Bg: tui.White, Fg: tui.Black},
	})

	tui.Push("", tui.Box {Width: tui.Fill, Height: 1})
	tui.Pop()

	tui.Push("command window status", tui.Box {
		Width: tui.TextSize, Height: 1, NoWrap: true,
	})
	w.ShowStatusLine()
	tui.Pop()

	tui.Pop()

	tui.Pop()
}

func (w *cmdWindow) loginMode() {
	w.login = true
	w.input.SetText("")
}

func (w *cmdWindow) info(f string, a ...any) {
	lastIndex++
	w.buf.Add(logMsg {lastIndex, fmt.Sprintf(f, a...), logInfo})
}

func (w *cmdWindow) err(f string, a ...any) {
	lastIndex++
	w.buf.Add(logMsg {lastIndex, fmt.Sprintf(f, a...), logErr})
}

func (w *cmdWindow) cmd(f string, a ...any) {
	lastIndex++
	w.buf.Add(logMsg {lastIndex, fmt.Sprintf(f, a...), logCmd})
}