package tui

import (
	"fmt"
	_ "image/jpeg"
	_ "image/png"
	"log"
	"strings"

	"github.com/jroimartin/gocui"
	//"whspbrd/pkg/systray"
	"whspbrd/pkg/render_image"
)

var messages []string
var users = []string{"Alice\n", "Bob\n", "Charlie\n"}

var prevWidth, prevHeight int

func layout(g *gocui.Gui) error {
	maxX, maxY := g.Size()

	if maxX != prevWidth || maxY != prevHeight {
		prevWidth, prevHeight = maxX, maxY
		if chatView, err := g.View("chat"); err == nil {
			updateChatView(chatView)
		}
	}

	if v, err := g.SetView("users", 0, 0, 20, maxY-1); err != nil {
		if err != gocui.ErrUnknownView {
			return err
		}
		v.Title = "Users"
		v.Clear()
		for _, u := range users {
			fmt.Fprintln(v, u)
		}
	}

	if v, err := g.SetView("chat", 21, 0, maxX-1, maxY-5); err != nil {
		if err != gocui.ErrUnknownView {
			return err
		}
		v.Title = "Chat"
		v.Wrap = true
		v.Autoscroll = true
		updateChatView(v)
	}

	if v, err := g.SetView("input", 21, maxY-4, maxX-1, maxY-1); err != nil {
		if err != gocui.ErrUnknownView {
			return err
		}
		v.Title = "Type your message"
		v.Editable = true
		v.Wrap = true
		if _, err := g.SetCurrentView("input"); err != nil {
			return err
		}
	}

	return nil
}

func updateChatView(v *gocui.View) {
	v.Clear()
	for i, msg := range messages {
		fmt.Fprintf(v, "%s\n\n", msg)
		//imagePath := "kogami-rounded.png"

		//file, err := os.Open(imagePath)
		//if err != nil {
		//	log.Println("Error opening image:", err)
		//	continue
		//}
		//defer file.Close()

		//img, _, err := image.Decode(file)
		//if err != nil {
		//	log.Println("Error decoding image:", err)
		//	continue
		//}

		// Print image directly to terminal (stdout)
		render_image.RenderImage("kogami-rounded.png", i*3+2, 23, 50, 50)
		//err = kittyimg.Fprintln(os.Stdout, img)
		//if err != nil {
		//	log.Println("Error rendering image:", err)
		//}
	}
}

func sendMessage(g *gocui.Gui, v *gocui.View) error {
	input := strings.TrimSpace(v.Buffer())
	v.Clear()
	v.SetCursor(0, 0)
	v.SetOrigin(0, 0)

	if input != "" {
		messages = append(messages, "\t\t\t\tYou:\n\t\t\t\t"+input)
		if chatView, err := g.View("chat"); err == nil {
			updateChatView(chatView)
		}
	}
	v.Clear()
	v.SetCursor(0, 0)
	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 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 nextView(g *gocui.Gui, v *gocui.View) error {
	if v == nil || v.Name() == "chat" {
		_, err := g.SetCurrentView("input")
		return err
	}
	_, err := g.SetCurrentView("chat")
	return err
}

func keybindings(g *gocui.Gui) error {
	// Ctrl+C to quit
	if err := g.SetKeybinding("", gocui.KeyCtrlC, gocui.ModNone, quit); err != nil {
		return err
	}

	// Enter to send message
	// Enter adds a new line (multiline input)
	//if err := g.SetKeybinding("input", gocui.KeyArrowDown, gocui.ModNone, insertNewline); err != nil {
	//	return err
	//}

	if err := g.SetKeybinding("chat", gocui.KeyCtrlSpace, gocui.ModNone, nextView); err != nil {
		return err
	}
	if err := g.SetKeybinding("input", gocui.KeyCtrlSpace, gocui.ModNone, nextView); err != nil {
		return err
	}

	// Alt+Enter inserts newline
	if err := g.SetKeybinding("input", gocui.KeyEnter, gocui.ModAlt, insertNewline); err != nil {
		return err
	}

	// Enter (no modifiers) sends message
	if err := g.SetKeybinding("input", gocui.KeyEnter, gocui.ModNone, sendMessage); err != nil {
		return err
	}

	// Arrow up
	if err := g.SetKeybinding("chat", gocui.KeyArrowUp, gocui.ModNone, cursorUp); err != nil {
		return err
	}
	// Arrow down
	if err := g.SetKeybinding("chat", gocui.KeyArrowDown, gocui.ModNone, cursorDown); err != nil {
		return err
	}

	return nil
}

func insertNewline(g *gocui.Gui, v *gocui.View) error {
	v.EditNewLine()
	return nil
}

func quit(g *gocui.Gui, v *gocui.View) error {
	return gocui.ErrQuit
}

func Run() {
	g, err := gocui.NewGui(gocui.OutputNormal)
	if err != nil {
		log.Panicln(err)
	}
	defer g.Close()

	g.SetManagerFunc(layout)

	if err := keybindings(g); err != nil {
		log.Panicln(err)
	}

	if err := g.MainLoop(); err != nil && err != gocui.ErrQuit {
		log.Panicln(err)
	}
}