local wezterm = require("wezterm")
local cfg = wezterm.config_builder()

-- Miscellaneous
cfg.adjust_window_size_when_changing_font_size = false
cfg.allow_square_glyphs_to_overflow_width = "Never"
cfg.allow_win32_input_mode = false
cfg.anti_alias_custom_block_glyphs = false
cfg.audible_bell = "Disabled"
cfg.font_size = 9
cfg.scrollback_lines = 2137
cfg.selection_word_boundary = " \t\n{}[]()'\"`.,;:"

-- Unicode select menu
cfg.char_select_bg_color = "#282c34"
cfg.char_select_fg_color = "#eff1f5"
cfg.char_select_font_size = 13
cfg.warn_about_missing_glyphs = false

-- Colors
cfg.color_scheme = "Pro"
cfg.colors = {
	cursor_bg = "#fff",
	cursor_fg = "#000",
	cursor_border = "#999",
}

-- Tab bar
cfg.hide_tab_bar_if_only_one_tab = true
cfg.show_close_tab_button_in_tabs = false
cfg.show_new_tab_button_in_tab_bar = false
cfg.show_tab_index_in_tab_bar = false
wezterm.on("format-tab-title", function(tab, tabs, panes, config, hover, max_width)
	local title = tab.active_pane.title
	local hostname
	for l in io.lines("/etc/hostname") do
		hostname = l
	end
	local part_to_remove = "mosder@" .. hostname .. ":"
	return string.gsub(title, part_to_remove, "")
end)

-- Window
cfg.window_background_opacity = 0.95
cfg.window_frame = {
	-- Would love to set alpha of both of these to 0.9, but it incorrectly applies
	-- to the area above the tabs themselves, so it's 1 for now
	active_titlebar_bg = "rgba(40,44,52,1)",
	inactive_titlebar_bg = "rgba(40,44,52,1)",
	font_size = 11,
}
cfg.window_padding = {
	left = 5,
	right = 5,
	top = 2,
	bottom = 2,
}

-- Key bindings
local act = wezterm.action
cfg.disable_default_key_bindings = true
cfg.keys = {
	-- Delete last word (Remap ALT+Backspace to CTRL+Backspace)
	{
		mods = "CTRL",
		key = "Backspace",
		action = act.SendKey({ mods = "ALT", key = "Backspace" }),
	},
	-- Copy mode
	{
		mods = "CTRL|SHIFT",
		key = "X",
		action = act.ActivateCopyMode,
	},
	-- Change tabs - relative
	{
		mods = "CTRL",
		key = "Tab",
		action = act.ActivateTabRelative(1),
	},
	{
		mods = "CTRL|SHIFT",
		key = "Tab",
		action = act.ActivateTabRelative(-1),
	},
	-- Unicode menu
	{
		mods = "CTRL",
		key = "u",
		action = act.CharSelect,
	},
	-- Close current tab
	{
		mods = "CTRL",
		key = "q",
		action = act.CloseCurrentTab({ confirm = true }),
	},
	-- Copy selection to clipboard
	{
		mods = "CTRL|SHIFT",
		key = "c",
		action = act.CopyTo("Clipboard"),
	},
	-- Decrease font size
	{
		mods = "CTRL",
		key = "-",
		action = act.DecreaseFontSize,
	},
	-- Increase font size
	{
		mods = "CTRL",
		key = "=",
		action = act.IncreaseFontSize,
	},
	-- Move tabs - relative
	{
		mods = "CTRL|SHIFT",
		key = "LeftArrow",
		action = act.MoveTabRelative(-1),
	},
	{
		mods = "CTRL|SHIFT",
		key = "RightArrow",
		action = act.MoveTabRelative(1),
	},
	-- Pase from clipboard
	{
		mods = "CTRL|SHIFT",
		key = "v",
		action = act.PasteFrom("Clipboard"),
	},
	{
		mods = "SHIFT",
		key = "Insert",
		action = act.PasteFrom("Clipboard"),
	},
	-- Reset font size
	{
		mods = "CTRL",
		key = "[",
		action = act.ResetFontSize,
	},
	-- Search
	{
		mods = "CTRL",
		key = "f",
		action = act.Search("CurrentSelectionOrEmptyString"),
	},
	-- New tab
	{
		mods = "CTRL",
		key = "t",
		action = act.SpawnTab("CurrentPaneDomain"),
	},
}
-- Change tabs
for i = 0, 9 do
	table.insert(cfg.keys, {
		mods = "CTRL",
		key = tostring(i),
		action = act.ActivateTab(i - 1),
	})
end
-- Move tabs (no support for -1, so a script instead)
local special_characters = { "!", "@", "#", "$", "%", "^", "&", "*", "(" }
for i = 1, 9 do
	table.insert(cfg.keys, {
		mods = "CTRL|SHIFT",
		key = special_characters[i],
		action = act.MoveTab(i - 1),
	})
end
wezterm.on("move-tab-to-last-spot", function(window, pane)
	local tabs = window:mux_window():tabs()
	window:perform_action(act.MoveTab(#tabs - 1), pane)
end)
table.insert(cfg.keys, {
	mods = "CTRL|SHIFT",
	key = ")",
	action = act.EmitEvent("move-tab-to-last-spot"),
})

return cfg