package main

import "github.com/charmbracelet/bubbles/key"

type keyMap struct {
	Up            key.Binding
	Down          key.Binding
	Top           key.Binding
	Bottom        key.Binding
	Tab           key.Binding
	ShiftTab      key.Binding
	FocusInput    key.Binding
	Unfocus       key.Binding
	Quit          key.Binding
	Help          key.Binding
	Send          key.Binding
	MemberToggle  key.Binding
	ChannelPicker key.Binding
}

var keys = keyMap{
	Up: key.NewBinding(
		key.WithKeys("k", "up"),
		key.WithHelp("k/↑", "up"),
	),
	Down: key.NewBinding(
		key.WithKeys("j", "down"),
		key.WithHelp("j/↓", "down"),
	),
	Top: key.NewBinding(
		key.WithKeys("g"),
		key.WithHelp("g", "top"),
	),
	Bottom: key.NewBinding(
		key.WithKeys("G"),
		key.WithHelp("G", "bottom"),
	),
	Tab: key.NewBinding(
		key.WithKeys("tab"),
		key.WithHelp("tab", "next pane"),
	),
	ShiftTab: key.NewBinding(
		key.WithKeys("shift+tab"),
		key.WithHelp("shift+tab", "prev pane"),
	),
	FocusInput: key.NewBinding(
		key.WithKeys("i"),
		key.WithHelp("i", "focus input"),
	),
	Unfocus: key.NewBinding(
		key.WithKeys("esc"),
		key.WithHelp("esc", "unfocus"),
	),
	Quit: key.NewBinding(
		key.WithKeys("q", "ctrl+c"),
		key.WithHelp("q", "quit"),
	),
	Help: key.NewBinding(
		key.WithKeys("?"),
		key.WithHelp("?", "help"),
	),
	Send: key.NewBinding(
		key.WithKeys("enter"),
		key.WithHelp("enter", "send"),
	),
	MemberToggle: key.NewBinding(
		key.WithKeys("m"),
		key.WithHelp("m", "toggle members"),
	),
	ChannelPicker: key.NewBinding(
		key.WithKeys("/"),
		key.WithHelp("/", "channels"),
	),
}

// helpItems returns relevant help items based on the current focus.
func helpItems(focused focusArea) []key.Binding {
	switch focused {
	case focusInput:
		return []key.Binding{keys.Send, keys.Unfocus}
	default:
		return []key.Binding{
			keys.Up, keys.Down, keys.Top, keys.Bottom,
			keys.Tab, keys.FocusInput, keys.MemberToggle,
			keys.ChannelPicker, keys.Help, keys.Quit,
		}
	}
}