wezterm.lua

local wezterm = require("wezterm")
local gui = wezterm.gui
local act = wezterm.action
local font = wezterm.font

local config = {}
local mouse_bindings = {}
local launch_menu = {}

local icon_mappings = {
  processes = {
    nvim = wezterm.nerdfonts.custom_neovim,
    zsh = wezterm.nerdfonts.cod_terminal,
    bash = wezterm.nerdfonts.cod_terminal_bash,
    git = wezterm.nerdfonts.fa_git,
  },
  extensions = {
    [".lua"] = wezterm.nerdfonts.md_language_lua,
    [".svelte"] = wezterm.nerdfonts.seti_svelte,
    [".js"] = wezterm.nerdfonts.dev_javascript,
    [".rb"] = wezterm.nerdfonts.dev_ruby,
    [".go"] = wezterm.nerdfonts.custom_go,
    [".py"] = wezterm.nerdfonts.dev_python,
    [".ts"] = wezterm.nerdfonts.dev_typescript,
    [".html"] = wezterm.nerdfonts.dev_html5,
    [".css"] = wezterm.nerdfonts.dev_css3,
  },
  directories = {
    Documents = wezterm.nerdfonts.fa_folder_open,
    Projects = wezterm.nerdfonts.dev_code,
    Downloads = wezterm.nerdfonts.fa_download,
    Music = wezterm.nerdfonts.fa_music,
    Pictures = wezterm.nerdfonts.fa_image,
    Videos = wezterm.nerdfonts.fa_video,
    OneDrive = wezterm.nerdfonts.dev_onedrive,
  },
  default_icon = wezterm.nerdfonts.cod_file,
}

-- Function to dynamically set icons in tab titles
wezterm.on("format-tab-title", function(tab, tabs, panes, config, hover, max_width)
  local title = tab.active_pane.title
  local process_name = tab.active_pane.foreground_process_name

  -- Check if there's an icon for the process
  for proc, icon in pairs(icon_mappings.processes) do
    if process_name and process_name:find(proc) then
      title = icon .. " " .. title
      return title
    end
  end
end)

-- Uncomment this block if you want to display a status bar with date, time, and battery info.
-- The status bar is set to display on the right side of the terminal window.
-- wezterm.on("update-right-status", function(window, pane)
--   local date = wezterm.strftime("%a %-d %b %y %H:%M ")
--   local bat = ""
--
--   for _, b in ipairs(wezterm.battery_info()) do
--     bat = wezterm.nerdfonts.md_battery .. " " .. string.format("%.0f%%", b.state_of_charge * 100)
--   end
--
--   -- Set the right status to the date and battery status of the current pane in the window
--   window:set_right_status(wezterm.format({
--     { Text = " | " .. wezterm.nerdfonts.fa_clock_o .. " " .. date .. " | " .. bat .. "  | " },
--   }))
--
--   -- Optionally, you can also set a left status with the terminal title or other info.
--   window:set_left_status(wezterm.format({
--     { Text = " | " .. wezterm.nerdfonts.fa_terminal .. " " .. pane.title .. " | " },
--   }))
-- end)

-- Use the `wezterm` module to build the configuration if supported
if wezterm.config_builder then
  config = wezterm.config_builder()
end

-- Define the launch menu items
config.launch_menu = launch_menu

-- Disable the tab bar as it’s not needed; setting it at the bottom if enabled
config.enable_tab_bar = false
config.tab_bar_at_bottom = false

config.enable_tab_bar = true
config.tab_bar_at_bottom = false

wezterm.on("format-tab-title", function(tab, tabs, panes, config, hover, max_width)
  -- Get the current working directory of the active pane
  local cwd_uri = tab.active_pane.current_working_dir
  local cwd = ""

  -- Convert the URI to a more readable path, if available
  if cwd_uri then
    local home = os.getenv("HOME")
    cwd = cwd_uri:match("file://[^/]*(/.*)")
    if home and cwd == home then
      cwd = "~"
    elseif home and cwd:find(home, 1, true) == 1 then
      cwd = "~" .. cwd:sub(#home + 1)
    end
  end

  local title = " " .. cwd .. " "

  if tab.is_active then
    return {
      { Background = { Color = "#7aa2f7" } },
      { Foreground = { Color = "#24283b" } },
      { Foreground = { Color = "#1a1b26" } },
      { Text = title },
      { Foreground = { Color = "#24283b" } },
    }
  else
    return {
      { Background = { Color = "#1a1b26" } },
      { Foreground = { Color = "#24283b" } },
      { Foreground = { Color = "#a9b1d6" } },
      { Text = title },
      { Foreground = { Color = "#24283b" } },
    }
  end
end)

-- Tokyo Night Storm colors with custom styling for tabs
config.colors = {
  tab_bar = {
    background = "#24283b",

    -- Active tab styling
    active_tab = {
      bg_color = "#7aa2f7",
      fg_color = "#1a1b26",
      intensity = "Bold",
    },

    -- Inactive tab styling
    inactive_tab = {
      bg_color = "#1a1b26",
      fg_color = "#a9b1d6",
    },

    -- Hover effect for inactive tabs
    inactive_tab_hover = {
      bg_color = "#3b4261",
      fg_color = "#c0caf5",
      italic = true,
    },

    -- New tab styling
    new_tab = {
      bg_color = "#24283b",
      fg_color = "#7aa2f7",
    },

    -- New tab hover styling
    new_tab_hover = {
      bg_color = "#7aa2f7",
      fg_color = "#1a1b26",
      underline = "Single",
    },
  },
}

config.window_padding = {
  left = 1,
  right = 1,
  top = 0,
  bottom = 0,
}

-- Function to get the current system appearance (e.g., Dark or Light mode)
local function get_appearance()
  if gui then
    return gui.get_appearance()
  end
  return "Dark" -- Default to Dark if GUI isn't available
end

-- Select a color scheme based on the system appearance
local function scheme_for_appearance(appearance)
  if appearance:find("Dark") then
    return "tokyonight_storm"
  else
    return "tokyonight_night"
  end
end

-- Customize various settings for a better appearance and readability
config.line_height = 1.2
config.font = wezterm.font_with_fallback({
  { family = "CaskaydiaCove Nerd Font", scale = 1.2, weight = "Medium" }, -- Main font with medium weight
  { family = "FiraCode Nerd Font",      scale = 1.2 },
})
config.color_scheme = scheme_for_appearance(get_appearance())

-- Uncomment and set the following options if you want a custom background image
-- config.window_background_image = "/path/to/wallpaper.png"
-- config.window_background_image_hsb = {
--   hue = 1.0,
--   saturation = 1.0,
--   brightness = 0.3,
-- }

-- Set the cursor style and window opacity
config.default_cursor_style = "BlinkingBar"
config.window_background_opacity = 0.9

-- Set window decorations and behavior
config.window_decorations = "RESIZE"
config.window_close_confirmation = "AlwaysPrompt"
config.scrollback_lines = 3500
config.default_workspace = "main"
config.enable_scroll_bar = true

-- Customize the appearance of the window frame
config.window_frame = {
  font = font({ family = "CaskaydiaCove Nerd Font", weight = "Bold" }),
  font_size = 14.0,
  -- active_titlebar_bg = "#2E3440",  -- Uncomment to set active title bar background color
  -- inactive_titlebar_bg = "#2E3440",  -- Uncomment to set inactive title bar background color
}

-- Brighten the foreground text for better contrast against the background
config.foreground_text_hsb = {
  hue = 1.0,
  saturation = 1.2,
  brightness = 1.5,
}

-- Adjust the appearance of inactive panes to differentiate them from active panes
config.inactive_pane_hsb = {
  hue = 0.0,
  saturation = 0.25,
  brightness = 0.5,
}

-- Keybindings settings: Disable default bindings and define custom ones
config.disable_default_key_bindings = true
config.leader = { key = "a", mods = "CTRL", timeout_milliseconds = 1000 }
config.keys = {
  -- Leader key configuration for quick access to commonly used actions
  { key = "a", mods = "LEADER",     action = act.SendKey({ key = "a", mods = "CTRL" }) },
  { key = "c", mods = "LEADER",     action = act.ActivateCopyMode },

  -- Pane management keybindings
  { key = "|", mods = "LEADER",     action = act.SplitHorizontal({ domain = "CurrentPaneDomain" }) },
  { key = "-", mods = "LEADER",     action = act.SplitVertical({ domain = "CurrentPaneDomain" }) },
  { key = "h", mods = "LEADER",     action = act.ActivatePaneDirection("Left") },
  { key = "j", mods = "LEADER",     action = act.ActivatePaneDirection("Down") },
  { key = "k", mods = "LEADER",     action = act.ActivatePaneDirection("Up") },
  { key = "l", mods = "LEADER",     action = act.ActivatePaneDirection("Right") },
  { key = "q", mods = "LEADER",     action = act.CloseCurrentPane({ confirm = true }) },
  { key = "z", mods = "LEADER",     action = act.TogglePaneZoomState },
  { key = "o", mods = "LEADER",     action = act.RotatePanes("Clockwise") },

  -- Resizing panes using a dedicated key table
  { key = "r", mods = "LEADER",     action = act.ActivateKeyTable({ name = "resize_pane", one_shot = false }) },

  -- Moving tabs within the terminal window
  { key = "m", mods = "LEADER",     action = act.ActivateKeyTable({ name = "move_tab", one_shot = false }) },
  { key = "{", mods = "LEADER|ALT", action = act.MoveTabRelative(-1) },
  { key = "}", mods = "LEADER|ALT", action = act.MoveTabRelative(1) },

  -- Tab management keybindings
  { key = "t", mods = "LEADER",     action = act.SpawnTab("CurrentPaneDomain") },
  { key = "[", mods = "LEADER",     action = act.ActivateTabRelative(-1) },
  { key = "]", mods = "LEADER",     action = act.ActivateTabRelative(1) },
  { key = "n", mods = "LEADER",     action = act.ShowTabNavigator },

  -- Rename the current tab
  {
    key = "e",
    mods = "LEADER",
    action = act.PromptInputLine({
      description = wezterm.format({
        { Attribute = { Intensity = "Bold" } },
        { Foreground = { AnsiColor = "Fuchsia" } },
        { Text = "Renaming Tab Title...:" },
      }),
      action = wezterm.action_callback(function(window, pane, line)
        if line then
          window:active_tab():set_title(line)
        end
      end),
    }),
  },

  -- Clipboard actions for copy and paste
  { key = "v", mods = "CTRL",   action = act.PasteFrom("Clipboard") },
  { key = "c", mods = "CTRL",   action = act.CopyTo("ClipboardAndPrimarySelection") },

  -- Workspace management
  { key = "w", mods = "LEADER", action = act.ShowLauncherArgs({ flags = "FUZZY|WORKSPACES" }) },
}

-- Additional keybindings for direct tab activation (e.g., LDR 1 for the first tab)
for i = 1, 9 do
  table.insert(config.keys, { key = tostring(i), mods = "LEADER", action = act.ActivateTab(i - 1) })
end

-- Define key tables for resize and move tab actions
config.key_tables = {
  resize_pane = {
    { key = "h",      action = act.AdjustPaneSize({ "Left", 1 }) },
    { key = "j",      action = act.AdjustPaneSize({ "Down", 1 }) },
    { key = "k",      action = act.AdjustPaneSize({ "Up", 1 }) },
    { key = "l",      action = act.AdjustPaneSize({ "Right", 1 }) },
    { key = "Escape", action = "PopKeyTable" },
    { key = "Enter",  action = "PopKeyTable" },
  },
  move_tab = {
    { key = "h",      action = act.MoveTabRelative(-1) },
    { key = "j",      action = act.MoveTabRelative(-1) },
    { key = "k",      action = act.MoveTabRelative(1) },
    { key = "l",      action = act.MoveTabRelative(1) },
    { key = "Escape", action = "PopKeyTable" },
    { key = "Enter",  action = "PopKeyTable" },
  },
}

-- Mouse bindings: Customize mouse actions, like triple-click to select text
config.mouse_bindings = mouse_bindings
mouse_bindings = {
  {
    event = { Down = { streak = 3, button = "Left" } },
    action = act.SelectTextAtMouseCursor("SemanticZone"),
    mods = "NONE",
  },
  {
    event = { Down = { streak = 1, button = "Right" } },
    mods = "NONE",
    action = wezterm.action_callback(function(window, pane)
      local has_selection = window:get_selection_text_for_pane(pane) ~= ""
      if has_selection then
        window:perform_action(act.CopyTo("ClipboardAndPrimarySelection"), pane)
        window:perform_action(act.ClearSelection, pane)
      else
        window:perform_action(act({ PasteForm = "Clipboard" }), pane)
      end
    end),
  },
}

-- Return the final configuration table
return config