package main

import (
	"fmt"
	"image"
	"os"
	"path"
	"strings"
	"time"

	"gf-lt/models"
	"gf-lt/pngmeta"
	"gf-lt/rag"

	"github.com/gdamore/tcell/v2"
	"github.com/rivo/tview"
)

func makeChatTable(chatMap map[string]models.Chat) *tview.Table {
	actions := []string{"load", "rename", "delete", "update card", "move sysprompt onto 1st msg", "new_chat_from_card"}
	chatList := make([]string, len(chatMap))
	i := 0
	for name := range chatMap {
		chatList[i] = name
		i++
	}
	// Sort chatList by UpdatedAt field in descending order (most recent first)
	for i := 0; i < len(chatList)-1; i++ {
		for j := i + 1; j < len(chatList); j++ {
			if chatMap[chatList[i]].UpdatedAt.Before(chatMap[chatList[j]].UpdatedAt) {
				// Swap chatList[i] and chatList[j]
				chatList[i], chatList[j] = chatList[j], chatList[i]
			}
		}
	}
	// Add 1 extra row for header
	rows, cols := len(chatMap)+1, len(actions)+4 // +2 for name, +2 for timestamps
	chatActTable := tview.NewTable().
		SetBorders(true)
	// Add header row (row 0)
	for c := 0; c < cols; c++ {
		color := tcell.ColorWhite
		var headerText string
		switch c {
		case 0:
			headerText = "Chat Name"
		case 1:
			headerText = "Preview"
		case 2:
			headerText = "Created At"
		case 3:
			headerText = "Updated At"
		default:
			headerText = actions[c-4]
		}
		chatActTable.SetCell(0, c,
			tview.NewTableCell(headerText).
				SetSelectable(false).
				SetTextColor(color).
				SetAlign(tview.AlignCenter).
				SetAttributes(tcell.AttrBold))
	}
	previewLen := 100
	// Add data rows (starting from row 1)
	for r := 0; r < rows-1; r++ { // rows-1 because we added a header row
		for c := 0; c < cols; c++ {
			color := tcell.ColorWhite
			switch c {
			case 0:
				chatActTable.SetCell(r+1, c, // +1 to account for header row
					tview.NewTableCell(chatList[r]).
						SetSelectable(false).
						SetTextColor(color).
						SetAlign(tview.AlignCenter))
			case 1:
				if len(chatMap[chatList[r]].Msgs) < 100 {
					previewLen = len(chatMap[chatList[r]].Msgs)
				}
				chatActTable.SetCell(r+1, c, // +1 to account for header row
					tview.NewTableCell(chatMap[chatList[r]].Msgs[len(chatMap[chatList[r]].Msgs)-previewLen:]).
						SetSelectable(false).
						SetTextColor(color).
						SetAlign(tview.AlignCenter))
			case 2:
				// Created At column
				chatActTable.SetCell(r+1, c, // +1 to account for header row
					tview.NewTableCell(chatMap[chatList[r]].CreatedAt.Format("2006-01-02 15:04")).
						SetSelectable(false).
						SetTextColor(color).
						SetAlign(tview.AlignCenter))
			case 3:
				// Updated At column
				chatActTable.SetCell(r+1, c, // +1 to account for header row
					tview.NewTableCell(chatMap[chatList[r]].UpdatedAt.Format("2006-01-02 15:04")).
						SetSelectable(false).
						SetTextColor(color).
						SetAlign(tview.AlignCenter))
			default:
				chatActTable.SetCell(r+1, c, // +1 to account for header row
					tview.NewTableCell(actions[c-4]). // Adjusted offset to account for 2 new timestamp columns
										SetTextColor(color).
										SetAlign(tview.AlignCenter))
			}
		}
	}
	chatActTable.Select(1, 0).SetSelectable(true, true).SetFixed(1, 1).SetDoneFunc(func(key tcell.Key) {
		if key == tcell.KeyEsc || key == tcell.KeyF1 || key == tcell.Key('x') {
			pages.RemovePage(historyPage)
			return
		}
	}).SetSelectedFunc(func(row int, column int) {
		// Skip header row (row 0) for selection
		if row == 0 {
			// If user clicks on header, just return without action
			chatActTable.Select(1, column) // Move selection to first data row
			return
		}
		tc := chatActTable.GetCell(row, column)
		tc.SetTextColor(tcell.ColorRed)
		chatActTable.SetSelectable(false, false)
		selectedChat := chatList[row-1] // -1 to account for header row
		defer pages.RemovePage(historyPage)
		switch tc.Text {
		case "load":
			history, err := loadHistoryChat(selectedChat)
			if err != nil {
				logger.Error("failed to read history file", "chat", selectedChat)
				pages.RemovePage(historyPage)
				return
			}
			chatBody.Messages = history
			textView.SetText(chatToText(chatBody.Messages, cfg.ShowSys))
			activeChatName = selectedChat
			pages.RemovePage(historyPage)
			return
		case "rename":
			pages.RemovePage(historyPage)
			pages.AddPage(renamePage, renameWindow, true, true)
			return
		case "delete":
			sc, ok := chatMap[selectedChat]
			if !ok {
				// no chat found
				pages.RemovePage(historyPage)
				return
			}
			if err := store.RemoveChat(sc.ID); err != nil {
				logger.Error("failed to remove chat from db", "chat_id", sc.ID, "chat_name", sc.Name)
			}
			if err := notifyUser("chat deleted", selectedChat+" was deleted"); err != nil {
				logger.Error("failed to send notification", "error", err)
			}
			// load last chat
			chatBody.Messages = loadOldChatOrGetNew()
			textView.SetText(chatToText(chatBody.Messages, cfg.ShowSys))
			pages.RemovePage(historyPage)
			return
		case "update card":
			// save updated card
			fi := strings.Index(selectedChat, "_")
			agentName := selectedChat[fi+1:]
			cc, ok := sysMap[agentName]
			if !ok {
				logger.Warn("no such card", "agent", agentName)
				//no:lint
				if err := notifyUser("error", "no such card: "+agentName); err != nil {
					logger.Warn("failed ot notify", "error", err)
				}
				return
			}
			// if chatBody.Messages[0].Role != "system" || chatBody.Messages[1].Role != agentName {
			// 	if err := notifyUser("error", "unexpected chat structure; card: "+agentName); err != nil {
			// 		logger.Warn("failed ot notify", "error", err)
			// 	}
			// 	return
			// }
			// change sys_prompt + first msg
			cc.SysPrompt = chatBody.Messages[0].Content
			cc.FirstMsg = chatBody.Messages[1].Content
			if err := pngmeta.WriteToPng(cc.ToSpec(cfg.UserRole), cc.FilePath, cc.FilePath); err != nil {
				logger.Error("failed to write charcard",
					"error", err)
			}
			return
		case "move sysprompt onto 1st msg":
			chatBody.Messages[1].Content = chatBody.Messages[0].Content + chatBody.Messages[1].Content
			chatBody.Messages[0].Content = rpDefenitionSysMsg
			textView.SetText(chatToText(chatBody.Messages, cfg.ShowSys))
			activeChatName = selectedChat
			pages.RemovePage(historyPage)
			return
		case "new_chat_from_card":
			// Reread card from file and start fresh chat
			fi := strings.Index(selectedChat, "_")
			agentName := selectedChat[fi+1:]
			cc, ok := sysMap[agentName]
			if !ok {
				logger.Warn("no such card", "agent", agentName)
				if err := notifyUser("error", "no such card: "+agentName); err != nil {
					logger.Warn("failed to notify", "error", err)
				}
				return
			}
			// Reload card from disk
			newCard, err := pngmeta.ReadCard(cc.FilePath, cfg.UserRole)
			if err != nil {
				logger.Error("failed to reload charcard", "path", cc.FilePath, "error", err)
				newCard, err = pngmeta.ReadCardJson(cc.FilePath)
				if err != nil {
					logger.Error("failed to reload charcard", "path", cc.FilePath, "error", err)
					if err := notifyUser("error", "failed to reload card: "+cc.FilePath); err != nil {
						logger.Warn("failed to notify", "error", err)
					}
					return
				}
			}
			// Update sysMap with fresh card data
			sysMap[agentName] = newCard
			// fetching sysprompt and first message anew from the card
			startNewChat(false)
			pages.RemovePage(historyPage)
			return
		default:
			return
		}
	})
	// Add input capture to handle 'x' key for closing the table
	chatActTable.SetInputCapture(func(event *tcell.EventKey) *tcell.EventKey {
		if event.Key() == tcell.KeyRune && event.Rune() == 'x' {
			pages.RemovePage(historyPage)
			return nil
		}
		return event
	})
	return chatActTable
}

// nolint:unused
func makeRAGTable(fileList []string) *tview.Flex {
	actions := []string{"load", "delete"}
	rows, cols := len(fileList), len(actions)+1
	fileTable := tview.NewTable().
		SetBorders(true)
	longStatusView := tview.NewTextView()
	longStatusView.SetText("status text")
	longStatusView.SetBorder(true).SetTitle("status")
	longStatusView.SetChangedFunc(func() {
		app.Draw()
	})
	ragflex := tview.NewFlex().SetDirection(tview.FlexRow).
		AddItem(longStatusView, 0, 10, false).
		AddItem(fileTable, 0, 60, true)
	// Add the exit option as the first row (row 0)
	fileTable.SetCell(0, 0,
		tview.NewTableCell("Exit RAG manager").
			SetTextColor(tcell.ColorWhite).
			SetAlign(tview.AlignCenter).
			SetSelectable(false))
	fileTable.SetCell(0, 1,
		tview.NewTableCell("(Close without action)").
			SetTextColor(tcell.ColorGray).
			SetAlign(tview.AlignCenter).
			SetSelectable(false))
	fileTable.SetCell(0, 2,
		tview.NewTableCell("exit").
			SetTextColor(tcell.ColorGray).
			SetAlign(tview.AlignCenter))
	// Add the file rows starting from row 1
	for r := 0; r < rows; r++ {
		for c := 0; c < cols; c++ {
			color := tcell.ColorWhite
			switch {
			case c < 1:
				fileTable.SetCell(r+1, c, // +1 to account for the exit row at index 0
					tview.NewTableCell(fileList[r]).
						SetTextColor(color).
						SetAlign(tview.AlignCenter).
						SetSelectable(false))
			case c == 1: // Action description column - not selectable
				fileTable.SetCell(r+1, c, // +1 to account for the exit row at index 0
					tview.NewTableCell("(Action)").
						SetTextColor(color).
						SetAlign(tview.AlignCenter).
						SetSelectable(false))
			default: // Action button column - selectable
				fileTable.SetCell(r+1, c, // +1 to account for the exit row at index 0
					tview.NewTableCell(actions[c-1]).
						SetTextColor(color).
						SetAlign(tview.AlignCenter))
			}
		}
	}
	errCh := make(chan error, 1) // why?
	go func() {
		defer pages.RemovePage(RAGPage)
		for {
			select {
			case err := <-errCh:
				if err == nil {
					logger.Error("somehow got a nil err", "error", err)
					continue
				}
				logger.Error("got an err in rag status", "error", err, "textview", longStatusView)
				longStatusView.SetText(fmt.Sprintf("%v", err))
				close(errCh)
				return
			case status := <-rag.LongJobStatusCh:
				longStatusView.SetText(status)
				// fmt.Fprintln(longStatusView, status)
				// app.Sync()
				if status == rag.FinishedRAGStatus {
					close(errCh)
					time.Sleep(2 * time.Second)
					return
				}
			}
		}
	}()
	fileTable.Select(0, 0).
		SetFixed(1, 1).
		SetSelectable(true, false).
		SetSelectedStyle(tcell.StyleDefault.Background(tcell.ColorGray).Foreground(tcell.ColorWhite)).
		SetDoneFunc(func(key tcell.Key) {
			if key == tcell.KeyEsc || key == tcell.KeyF1 || key == tcell.Key('x') || key == tcell.KeyCtrlX {
				pages.RemovePage(RAGPage)
				return
			}
		}).SetSelectedFunc(func(row int, column int) {
		// If user selects a non-actionable column (0 or 1), move to first action column (2)
		if column <= 1 {
			if fileTable.GetColumnCount() > 2 {
				fileTable.Select(row, 2) // Select first action column
			}
			return
		}
		// defer pages.RemovePage(RAGPage)
		tc := fileTable.GetCell(row, column)
		// Check if the selected row is the exit row (row 0) - do this first to avoid index issues
		if row == 0 {
			pages.RemovePage(RAGPage)
			return
		}
		// For file rows, get the filename (row index - 1 because of the exit row at index 0)
		fpath := fileList[row-1] // -1 to account for the exit row at index 0
		// notification := fmt.Sprintf("chat: %s; action: %s", fpath, tc.Text)
		switch tc.Text {
		case "load":
			fpath = path.Join(cfg.RAGDir, fpath)
			longStatusView.SetText("clicked load")
			go func() {
				if err := ragger.LoadRAG(fpath); err != nil {
					logger.Error("failed to embed file", "chat", fpath, "error", err)
					_ = notifyUser("RAG", "failed to embed file; error: "+err.Error())
					errCh <- err
					// pages.RemovePage(RAGPage)
					return
				}
			}()
			return
		case "delete":
			fpath = path.Join(cfg.RAGDir, fpath)
			if err := os.Remove(fpath); err != nil {
				logger.Error("failed to delete file", "filename", fpath, "error", err)
				return
			}
			if err := notifyUser("chat deleted", fpath+" was deleted"); err != nil {
				logger.Error("failed to send notification", "error", err)
			}
			return
		default:
			pages.RemovePage(RAGPage)
			return
		}
	})
	// Add input capture to the flex container to handle 'x' key for closing
	ragflex.SetInputCapture(func(event *tcell.EventKey) *tcell.EventKey {
		if event.Key() == tcell.KeyRune && event.Rune() == 'x' {
			pages.RemovePage(RAGPage)
			return nil
		}
		return event
	})
	return ragflex
}

func makeLoadedRAGTable(fileList []string) *tview.Flex {
	actions := []string{"delete"}
	rows, cols := len(fileList), len(actions)+1
	// Add 1 extra row for the "exit" option at the top
	fileTable := tview.NewTable().
		SetBorders(true)
	longStatusView := tview.NewTextView()
	longStatusView.SetText("Loaded RAG files list")
	longStatusView.SetBorder(true).SetTitle("status")
	longStatusView.SetChangedFunc(func() {
		app.Draw()
	})
	ragflex := tview.NewFlex().SetDirection(tview.FlexRow).
		AddItem(longStatusView, 0, 10, false).
		AddItem(fileTable, 0, 60, true)
	// Add the exit option as the first row (row 0)
	fileTable.SetCell(0, 0,
		tview.NewTableCell("Exit Loaded Files manager").
			SetTextColor(tcell.ColorWhite).
			SetAlign(tview.AlignCenter).
			SetSelectable(false))
	fileTable.SetCell(0, 1,
		tview.NewTableCell("(Close without action)").
			SetTextColor(tcell.ColorGray).
			SetAlign(tview.AlignCenter).
			SetSelectable(false))
	fileTable.SetCell(0, 2,
		tview.NewTableCell("exit").
			SetTextColor(tcell.ColorGray).
			SetAlign(tview.AlignCenter))
	// Add the file rows starting from row 1
	for r := 0; r < rows; r++ {
		for c := 0; c < cols; c++ {
			color := tcell.ColorWhite
			switch {
			case c < 1:
				fileTable.SetCell(r+1, c, // +1 to account for the exit row at index 0
					tview.NewTableCell(fileList[r]).
						SetTextColor(color).
						SetAlign(tview.AlignCenter).
						SetSelectable(false))
			case c == 1: // Action description column - not selectable
				fileTable.SetCell(r+1, c, // +1 to account for the exit row at index 0
					tview.NewTableCell("(Action)").
						SetTextColor(color).
						SetAlign(tview.AlignCenter).
						SetSelectable(false))
			default: // Action button column - selectable
				fileTable.SetCell(r+1, c, // +1 to account for the exit row at index 0
					tview.NewTableCell(actions[c-1]).
						SetTextColor(color).
						SetAlign(tview.AlignCenter))
			}
		}
	}
	fileTable.Select(0, 0).
		SetFixed(1, 1).
		SetSelectable(true, false).
		SetSelectedStyle(tcell.StyleDefault.Background(tcell.ColorGray).Foreground(tcell.ColorWhite)).
		SetDoneFunc(func(key tcell.Key) {
			if key == tcell.KeyEsc || key == tcell.KeyF1 || key == tcell.Key('x') || key == tcell.KeyCtrlX {
				pages.RemovePage(RAGLoadedPage)
				return
			}
		}).SetSelectedFunc(func(row int, column int) {
		// If user selects a non-actionable column (0 or 1), move to first action column (2)
		if column <= 1 {
			if fileTable.GetColumnCount() > 2 {
				fileTable.Select(row, 2) // Select first action column
			}
			return
		}
		tc := fileTable.GetCell(row, column)
		// Check if the selected row is the exit row (row 0) - do this first to avoid index issues
		if row == 0 {
			pages.RemovePage(RAGLoadedPage)
			return
		}
		// For file rows, get the filename (row index - 1 because of the exit row at index 0)
		fpath := fileList[row-1] // -1 to account for the exit row at index 0
		switch tc.Text {
		case "delete":
			if err := ragger.RemoveFile(fpath); err != nil {
				logger.Error("failed to delete file from RAG", "filename", fpath, "error", err)
				longStatusView.SetText(fmt.Sprintf("Error deleting file: %v", err))
				return
			}
			if err := notifyUser("RAG file deleted", fpath+" was deleted from RAG system"); err != nil {
				logger.Error("failed to send notification", "error", err)
			}
			longStatusView.SetText(fpath + " was deleted from RAG system")
			return
		default:
			pages.RemovePage(RAGLoadedPage)
			return
		}
	})
	// Add input capture to the flex container to handle 'x' key for closing
	ragflex.SetInputCapture(func(event *tcell.EventKey) *tcell.EventKey {
		if event.Key() == tcell.KeyRune && event.Rune() == 'x' {
			pages.RemovePage(RAGLoadedPage)
			return nil
		}
		return event
	})
	return ragflex
}

func makeAgentTable(agentList []string) *tview.Table {
	actions := []string{"filepath", "load"}
	rows, cols := len(agentList), len(actions)+1
	chatActTable := tview.NewTable().
		SetBorders(true)
	for r := 0; r < rows; r++ {
		for c := 0; c < cols; c++ {
			color := tcell.ColorWhite
			switch {
			case c < 1:
				chatActTable.SetCell(r, c,
					tview.NewTableCell(agentList[r]).
						SetTextColor(color).
						SetAlign(tview.AlignCenter).
						SetSelectable(false))
			case c == 1:
				if actions[c-1] == "filepath" {
					cc, ok := sysMap[agentList[r]]
					if !ok {
						continue
					}
					chatActTable.SetCell(r, c,
						tview.NewTableCell(cc.FilePath).
							SetTextColor(color).
							SetAlign(tview.AlignCenter).
							SetSelectable(false))
					continue
				}
				chatActTable.SetCell(r, c,
					tview.NewTableCell(actions[c-1]).
						SetTextColor(color).
						SetAlign(tview.AlignCenter))
			default:
				chatActTable.SetCell(r, c,
					tview.NewTableCell(actions[c-1]).
						SetTextColor(color).
						SetAlign(tview.AlignCenter))
			}
		}
	}
	chatActTable.Select(0, 0).
		SetFixed(1, 1).
		SetSelectable(true, false).
		SetSelectedStyle(tcell.StyleDefault.Background(tcell.ColorGray).Foreground(tcell.ColorWhite)).
		SetDoneFunc(func(key tcell.Key) {
			if key == tcell.KeyEsc || key == tcell.KeyF1 || key == tcell.Key('x') {
				pages.RemovePage(agentPage)
				return
			}
		}).SetSelectedFunc(func(row int, column int) {
		// If user selects a non-actionable column (0 or 1), move to first action column (2)
		if column <= 1 {
			if chatActTable.GetColumnCount() > 2 {
				chatActTable.Select(row, 2) // Select first action column
			}
			return
		}
		tc := chatActTable.GetCell(row, column)
		selected := agentList[row]
		// notification := fmt.Sprintf("chat: %s; action: %s", selectedChat, tc.Text)
		switch tc.Text {
		case "load":
			if ok := charToStart(selected, true); !ok {
				logger.Warn("no such sys msg", "name", selected)
				pages.RemovePage(agentPage)
				return
			}
			// replace textview
			textView.SetText(chatToText(chatBody.Messages, cfg.ShowSys))
			colorText()
			updateStatusLine()
			// sysModal.ClearButtons()
			pages.RemovePage(agentPage)
			app.SetFocus(textArea)
			return
		case "rename":
			pages.RemovePage(agentPage)
			pages.AddPage(renamePage, renameWindow, true, true)
			return
		case "delete":
			sc, ok := chatMap[selected]
			if !ok {
				// no chat found
				pages.RemovePage(agentPage)
				return
			}
			if err := store.RemoveChat(sc.ID); err != nil {
				logger.Error("failed to remove chat from db", "chat_id", sc.ID, "chat_name", sc.Name)
			}
			if err := notifyUser("chat deleted", selected+" was deleted"); err != nil {
				logger.Error("failed to send notification", "error", err)
			}
			pages.RemovePage(agentPage)
			return
		default:
			pages.RemovePage(agentPage)
			return
		}
	})
	// Add input capture to handle 'x' key for closing the table
	chatActTable.SetInputCapture(func(event *tcell.EventKey) *tcell.EventKey {
		if event.Key() == tcell.KeyRune && event.Rune() == 'x' {
			pages.RemovePage(agentPage)
			return nil
		}
		return event
	})
	return chatActTable
}

func makeCodeBlockTable(codeBlocks []string) *tview.Table {
	actions := []string{"copy"}
	rows, cols := len(codeBlocks), len(actions)+1
	table := tview.NewTable().
		SetBorders(true)
	for r := 0; r < rows; r++ {
		for c := 0; c < cols; c++ {
			color := tcell.ColorWhite
			previewLen := 30
			if len(codeBlocks[r]) < 30 {
				previewLen = len(codeBlocks[r])
			}
			switch {
			case c < 1:
				table.SetCell(r, c,
					tview.NewTableCell(codeBlocks[r][:previewLen]).
						SetTextColor(color).
						SetAlign(tview.AlignCenter).
						SetSelectable(false))
			default:
				table.SetCell(r, c,
					tview.NewTableCell(actions[c-1]).
						SetTextColor(color).
						SetAlign(tview.AlignCenter))
			}
		}
	}
	table.Select(0, 0).
		SetFixed(1, 1).
		SetSelectable(true, false).
		SetSelectedStyle(tcell.StyleDefault.Background(tcell.ColorGray).Foreground(tcell.ColorWhite)).
		SetDoneFunc(func(key tcell.Key) {
			if key == tcell.KeyEsc || key == tcell.KeyF1 || key == tcell.Key('x') {
				pages.RemovePage(codeBlockPage)
				return
			}
		}).SetSelectedFunc(func(row int, column int) {
		// If user selects a non-actionable column (0), move to first action column (1)
		if column == 0 {
			if table.GetColumnCount() > 1 {
				table.Select(row, 1) // Select first action column
			}
			return
		}
		tc := table.GetCell(row, column)
		selected := codeBlocks[row]
		// notification := fmt.Sprintf("chat: %s; action: %s", selectedChat, tc.Text)
		switch tc.Text {
		case "copy":
			if err := copyToClipboard(selected); err != nil {
				if err := notifyUser("error", err.Error()); err != nil {
					logger.Error("failed to send notification", "error", err)
				}
			}
			if err := notifyUser("copied", selected); err != nil {
				logger.Error("failed to send notification", "error", err)
			}
			pages.RemovePage(codeBlockPage)
			app.SetFocus(textArea)
			return
		default:
			pages.RemovePage(codeBlockPage)
			return
		}
	})
	// Add input capture to handle 'x' key for closing the table
	table.SetInputCapture(func(event *tcell.EventKey) *tcell.EventKey {
		if event.Key() == tcell.KeyRune && event.Rune() == 'x' {
			pages.RemovePage(codeBlockPage)
			return nil
		}
		return event
	})
	return table
}

func makeImportChatTable(filenames []string) *tview.Table {
	actions := []string{"load"}
	rows, cols := len(filenames), len(actions)+1
	chatActTable := tview.NewTable().
		SetBorders(true)
	for r := 0; r < rows; r++ {
		for c := 0; c < cols; c++ {
			color := tcell.ColorWhite
			switch {
			case c < 1:
				chatActTable.SetCell(r, c,
					tview.NewTableCell(filenames[r]).
						SetTextColor(color).
						SetAlign(tview.AlignCenter).
						SetSelectable(false))
			default:
				chatActTable.SetCell(r, c,
					tview.NewTableCell(actions[c-1]).
						SetTextColor(color).
						SetAlign(tview.AlignCenter))
			}
		}
	}
	chatActTable.Select(0, 0).
		SetFixed(1, 1).
		SetSelectable(true, false).
		SetSelectedStyle(tcell.StyleDefault.Background(tcell.ColorGray).Foreground(tcell.ColorWhite)).
		SetDoneFunc(func(key tcell.Key) {
			if key == tcell.KeyEsc || key == tcell.KeyF1 || key == tcell.Key('x') {
				pages.RemovePage(historyPage)
				return
			}
		}).SetSelectedFunc(func(row int, column int) {
		// If user selects a non-actionable column (0), move to first action column (1)
		if column == 0 {
			if chatActTable.GetColumnCount() > 1 {
				chatActTable.Select(row, 1) // Select first action column
			}
			return
		}
		tc := chatActTable.GetCell(row, column)
		selected := filenames[row]
		// notification := fmt.Sprintf("chat: %s; action: %s", selectedChat, tc.Text)
		switch tc.Text {
		case "load":
			if err := importChat(selected); err != nil {
				logger.Warn("failed to import chat", "filename", selected)
				pages.RemovePage(historyPage)
				return
			}
			colorText()
			updateStatusLine()
			// redraw the text in text area
			textView.SetText(chatToText(chatBody.Messages, cfg.ShowSys))
			pages.RemovePage(historyPage)
			app.SetFocus(textArea)
			return
		case "rename":
			pages.RemovePage(historyPage)
			pages.AddPage(renamePage, renameWindow, true, true)
			return
		case "delete":
			sc, ok := chatMap[selected]
			if !ok {
				// no chat found
				pages.RemovePage(historyPage)
				return
			}
			if err := store.RemoveChat(sc.ID); err != nil {
				logger.Error("failed to remove chat from db", "chat_id", sc.ID, "chat_name", sc.Name)
			}
			if err := notifyUser("chat deleted", selected+" was deleted"); err != nil {
				logger.Error("failed to send notification", "error", err)
			}
			pages.RemovePage(historyPage)
			return
		default:
			pages.RemovePage(historyPage)
			return
		}
	})
	// Add input capture to handle 'x' key for closing the table
	chatActTable.SetInputCapture(func(event *tcell.EventKey) *tcell.EventKey {
		if event.Key() == tcell.KeyRune && event.Rune() == 'x' {
			pages.RemovePage(historyPage)
			return nil
		}
		return event
	})
	return chatActTable
}

func makeFilePicker() *tview.Flex {
	// Initialize with directory from config or current directory
	startDir := cfg.FilePickerDir
	if startDir == "" {
		startDir = "."
	}
	// If startDir is ".", resolve it to the actual current working directory
	if startDir == "." {
		wd, err := os.Getwd()
		if err == nil {
			startDir = wd
		}
	}
	// Track navigation history
	dirStack := []string{startDir}
	currentStackPos := 0
	// Track selected file
	var selectedFile string
	// Track currently displayed directory (changes as user navigates)
	currentDisplayDir := startDir
	// --- NEW: search state ---
	searching := false
	searchQuery := ""
	// Helper function to check if a file has an allowed extension from config
	hasAllowedExtension := func(filename string) bool {
		if cfg.FilePickerExts == "" {
			return true
		}
		allowedExts := strings.Split(cfg.FilePickerExts, ",")
		lowerFilename := strings.ToLower(strings.TrimSpace(filename))
		for _, ext := range allowedExts {
			ext = strings.TrimSpace(ext)
			if ext != "" && strings.HasSuffix(lowerFilename, "."+ext) {
				return true
			}
		}
		return false
	}
	// Helper function to check if a file is an image
	isImageFile := func(filename string) bool {
		imageExtensions := []string{".png", ".jpg", ".jpeg", ".gif", ".webp", ".bmp", ".tiff", ".svg"}
		lowerFilename := strings.ToLower(filename)
		for _, ext := range imageExtensions {
			if strings.HasSuffix(lowerFilename, ext) {
				return true
			}
		}
		return false
	}
	// Create UI elements
	listView := tview.NewList()
	listView.SetBorder(true).SetTitle("Files & Directories [c: set CodingDir]").SetTitleAlign(tview.AlignLeft)
	// Status view for selected file information
	statusView := tview.NewTextView()
	statusView.SetBorder(true).SetTitle("Selected File").SetTitleAlign(tview.AlignLeft)
	statusView.SetTextColor(tcell.ColorYellow)
	// Image preview pane
	var imgPreview *tview.Image
	if cfg.ImagePreview {
		imgPreview = tview.NewImage()
		imgPreview.SetBorder(true).SetTitle("Preview").SetTitleAlign(tview.AlignLeft)
	}
	// Horizontal flex for list + preview
	var hFlex *tview.Flex
	if cfg.ImagePreview && imgPreview != nil {
		hFlex = tview.NewFlex().SetDirection(tview.FlexColumn).
			AddItem(listView, 0, 3, true).
			AddItem(imgPreview, 0, 2, false)
	} else {
		hFlex = tview.NewFlex().SetDirection(tview.FlexColumn).
			AddItem(listView, 0, 1, true)
	}
	// Main vertical flex
	flex := tview.NewFlex().SetDirection(tview.FlexRow)
	flex.AddItem(hFlex, 0, 3, true)
	flex.AddItem(statusView, 3, 0, false)
	// Refresh the file list – now accepts a filter string
	var refreshList func(string, string)
	refreshList = func(dir string, filter string) {
		listView.Clear()
		// Update the current display directory
		currentDisplayDir = dir
		// Add exit option at the top
		listView.AddItem("Exit file picker [gray](Close without selecting)[-]", "", 'x', func() {
			pages.RemovePage(filePickerPage)
		})
		// Add parent directory (..) if not at root
		if dir != "/" {
			parentDir := path.Dir(dir)
			// For Unix-like systems, avoid infinite loop when at root
			if parentDir != dir {
				listView.AddItem("../ [gray](Parent Directory)[-]", "", 'p', func() {
					// Clear search on navigation
					searching = false
					searchQuery = ""
					if cfg.ImagePreview {
						imgPreview.SetImage(nil)
					}
					refreshList(parentDir, "")
					dirStack = append(dirStack, parentDir)
					currentStackPos = len(dirStack) - 1
				})
			}
		}
		// Read directory contents
		files, err := os.ReadDir(dir)
		if err != nil {
			statusView.SetText("Error reading directory: " + err.Error())
			return
		}
		// Helper to check if an item passes the filter
		matchesFilter := func(name string) bool {
			if filter == "" {
				return true
			}
			return strings.Contains(strings.ToLower(name), strings.ToLower(filter))
		}
		// Add directories
		for _, file := range files {
			name := file.Name()
			if strings.HasPrefix(name, ".") {
				continue
			}
			if file.IsDir() && matchesFilter(name) {
				dirName := name
				listView.AddItem(dirName+"/ [gray](Directory)[-]", "", 0, func() {
					// Clear search on navigation
					searching = false
					searchQuery = ""
					if cfg.ImagePreview {
						imgPreview.SetImage(nil)
					}
					newDir := path.Join(dir, dirName)
					refreshList(newDir, "")
					dirStack = append(dirStack, newDir)
					currentStackPos = len(dirStack) - 1
					statusView.SetText("Current: " + newDir)
				})
			}
		}
		// Add files with allowed extensions
		for _, file := range files {
			name := file.Name()
			if strings.HasPrefix(name, ".") || file.IsDir() {
				continue
			}
			if hasAllowedExtension(name) && matchesFilter(name) {
				fileName := name
				fullFilePath := path.Join(dir, fileName)
				listView.AddItem(fileName+" [gray](File)[-]", "", 0, func() {
					selectedFile = fullFilePath
					statusView.SetText("Selected: " + selectedFile)
					if isImageFile(fileName) {
						statusView.SetText("Selected image: " + selectedFile)
					}
				})
			}
		}
		// Update status line based on search state
		switch {
		case searching:
			statusView.SetText("Search: " + searchQuery + "_")
		case searchQuery != "":
			statusView.SetText("Current: " + dir + " (filter: " + searchQuery + ")")
		default:
			statusView.SetText("Current: " + dir)
		}
	}
	// Initialize the file list
	refreshList(startDir, "")
	// Update image preview when selection changes (unchanged)
	if cfg.ImagePreview && imgPreview != nil {
		listView.SetChangedFunc(func(index int, mainText, secondaryText string, rune rune) {
			itemText, _ := listView.GetItemText(index)
			if strings.HasPrefix(itemText, "Exit file picker") || strings.HasPrefix(itemText, "../") {
				imgPreview.SetImage(nil)
				return
			}
			actualItemName := itemText
			if bracketPos := strings.Index(itemText, " ["); bracketPos != -1 {
				actualItemName = itemText[:bracketPos]
			}
			if strings.HasSuffix(actualItemName, "/") {
				imgPreview.SetImage(nil)
				return
			}
			if !isImageFile(actualItemName) {
				imgPreview.SetImage(nil)
				return
			}
			filePath := path.Join(currentDisplayDir, actualItemName)
			file, err := os.Open(filePath)
			if err != nil {
				imgPreview.SetImage(nil)
				return
			}
			defer file.Close()
			img, _, err := image.Decode(file)
			if err != nil {
				imgPreview.SetImage(nil)
				return
			}
			imgPreview.SetImage(img)
		})
	}
	// Set up keyboard navigation
	flex.SetInputCapture(func(event *tcell.EventKey) *tcell.EventKey {
		// --- Handle search mode ---
		if searching {
			switch event.Key() {
			case tcell.KeyEsc:
				// Exit search, clear filter
				searching = false
				searchQuery = ""
				refreshList(currentDisplayDir, "")
				return nil
			case tcell.KeyBackspace, tcell.KeyBackspace2:
				if len(searchQuery) > 0 {
					searchQuery = searchQuery[:len(searchQuery)-1]
					refreshList(currentDisplayDir, searchQuery)
				}
				return nil
			case tcell.KeyRune:
				r := event.Rune()
				if r != 0 {
					searchQuery += string(r)
					refreshList(currentDisplayDir, searchQuery)
				}
				return nil
			default:
				// Pass all other keys (arrows, Enter, etc.) to normal processing
				// This allows selecting items while still in search mode
				return event
			}
		}
		// --- Not searching ---
		switch event.Key() {
		case tcell.KeyEsc:
			pages.RemovePage(filePickerPage)
			return nil
		case tcell.KeyBackspace2: // Backspace to go to parent directory
			if cfg.ImagePreview && imgPreview != nil {
				imgPreview.SetImage(nil)
			}
			if currentStackPos > 0 {
				currentStackPos--
				prevDir := dirStack[currentStackPos]
				// Clear search when navigating with backspace
				searching = false
				searchQuery = ""
				refreshList(prevDir, "")
				// Trim the stack to current position
				dirStack = dirStack[:currentStackPos+1]
			}
			return nil
		case tcell.KeyRune:
			if event.Rune() == '/' {
				// Enter search mode
				searching = true
				searchQuery = ""
				refreshList(currentDisplayDir, "")
				return nil
			}
			if event.Rune() == 'c' {
				// Set CodingDir to current directory
				itemIndex := listView.GetCurrentItem()
				if itemIndex >= 0 && itemIndex < listView.GetItemCount() {
					itemText, _ := listView.GetItemText(itemIndex)
					// Get the actual directory path
					var targetDir string
					if strings.HasPrefix(itemText, "Exit") || strings.HasPrefix(itemText, "Select this directory") {
						targetDir = currentDisplayDir
					} else {
						actualItemName := itemText
						if bracketPos := strings.Index(itemText, " ["); bracketPos != -1 {
							actualItemName = itemText[:bracketPos]
						}
						if strings.HasPrefix(actualItemName, "../") {
							targetDir = path.Dir(currentDisplayDir)
						} else if strings.HasSuffix(actualItemName, "/") {
							dirName := strings.TrimSuffix(actualItemName, "/")
							targetDir = path.Join(currentDisplayDir, dirName)
						} else {
							targetDir = currentDisplayDir
						}
					}
					cfg.CodingDir = targetDir
					if err := notifyUser("CodingDir", "Set to: "+targetDir); err != nil {
						logger.Error("failed to notify user", "error", err)
					}
					pages.RemovePage(filePickerPage)
					return nil
				}
			}
		case tcell.KeyEnter:
			// Get the currently highlighted item in the list
			itemIndex := listView.GetCurrentItem()
			if itemIndex >= 0 && itemIndex < listView.GetItemCount() {
				itemText, _ := listView.GetItemText(itemIndex)
				logger.Info("choosing dir", "itemText", itemText)
				// Check for the exit option first
				if strings.HasPrefix(itemText, "Exit file picker") {
					pages.RemovePage(filePickerPage)
					return nil
				}
				// Extract the actual filename/directory name by removing the type info
				actualItemName := itemText
				if bracketPos := strings.Index(itemText, " ["); bracketPos != -1 {
					actualItemName = itemText[:bracketPos]
				}
				// Check if it's a directory (ends with /)
				if strings.HasSuffix(actualItemName, "/") {
					var targetDir string
					if strings.HasPrefix(actualItemName, "../") {
						// Parent directory
						targetDir = path.Dir(currentDisplayDir)
						if targetDir == currentDisplayDir && currentDisplayDir == "/" {
							logger.Warn("at root, cannot go up")
							return nil
						}
					} else {
						// Regular subdirectory
						dirName := strings.TrimSuffix(actualItemName, "/")
						targetDir = path.Join(currentDisplayDir, dirName)
					}
					// Navigate – clear search
					logger.Info("going to dir", "dir", targetDir)
					if cfg.ImagePreview && imgPreview != nil {
						imgPreview.SetImage(nil)
					}
					searching = false
					searchQuery = ""
					refreshList(targetDir, "")
					dirStack = append(dirStack, targetDir)
					currentStackPos = len(dirStack) - 1
					statusView.SetText("Current: " + targetDir)
					return nil
				} else {
					// It's a file
					filePath := path.Join(currentDisplayDir, actualItemName)
					if info, err := os.Stat(filePath); err == nil && !info.IsDir() {
						if isImageFile(actualItemName) {
							logger.Info("setting image", "file", actualItemName)
							SetImageAttachment(filePath)
							logger.Info("after setting image", "file", actualItemName)
							statusView.SetText("Image attached: " + filePath + " (will be sent with next message)")
							logger.Info("after setting text", "file", actualItemName)
							pages.RemovePage(filePickerPage)
							logger.Info("after update drawn", "file", actualItemName)
						} else {
							textArea.SetText(filePath, true)
							app.SetFocus(textArea)
							pages.RemovePage(filePickerPage)
						}
					}
					return nil
				}
			}
			return nil
		}
		return event
	})
	return flex
}