package main

import (
	tea "github.com/charmbracelet/bubbletea"
)

type channelsModel struct {
	index	int
}

func doOpenChannel(conn *loungeConnection, channel *loungeChannel) tea.Cmd {
	return func() tea.Msg {
		loungeChannelOpen(conn, channel)
		return 1
	}
}

func channelsModelInit() channelsModel {
	return channelsModel{0}
}

func (m mainModel) channelsInit() tea.Cmd {
	return nil
}

func (m mainModel) channelsView() string {
	height := m.height - 1
	pages := []string{}
	pageIndex := []int{}
	buf := ""
	curIndex := 0
	curPage := 0
	curLine := 0
	for i := 0; i < len(m.conn.Networks); i++ {
		net := m.conn.Networks[i]
		for i := 0; i < len(net.Channels); i++ {
			if net.Channels[i].Type != "lobby" {
				buf += "\t"
			}
			if m.channelsModel.index == curIndex {
				buf += highlightText(net.Channels[i].Name) + "\n"
			} else {
				buf += net.Channels[i].Name + "\n"
			}
			pageIndex = append(pageIndex, curPage)
			curIndex++
			curLine++
			if curLine >= height - 1 {
				curPage++
				curLine = 0
				pages = append(pages, buf[:len(buf)-1])
				buf = ""
			}
		}
		buf += "\n"
		curLine += 1
	}
	if buf != "" {
		pages = append(pages, buf[:len(buf)-1])
	}
	s := "Select a channel\n"
	if len(pageIndex) > 0 {
		if m.channelsModel.index < len(pageIndex) {
			s += pages[pageIndex[m.channelsModel.index]]
		} else {
			s += pages[len(pages) - 1]
		}
	} else {
		s += "No networks found"
	}
	return s
}

func (m mainModel) channelsUpdate(msg tea.Msg) (tea.Model, tea.Cmd) {
	var cmd tea.Cmd
	channels := []*loungeChannel{}
	for i := 0; i < len(m.conn.Networks); i++ {
		net := m.conn.Networks[i]
		for i := 0; i < len(net.Channels); i++ {
			channels = append(channels, &net.Channels[i])
		}
	}
	index := m.channelsModel.index
	_, index, button := updateIndex(msg, m.channelsModel.index, len(channels), true, []int{})
	m.channelsModel.index = index
	if button && index < len(channels) {
		cmd = doOpenChannel(m.conn, channels[index])
		m.view = viewChat
		m.chatModel.chatInput.SetValue("")
	}
	return m, cmd
}