nix/modules/home-manager/wezterm.nix

{font, ...}: {
  programs.wezterm = {
    enable = true;
    extraConfig = ''
      local wezterm = require'wezterm'

      local config = {}

      -- TODO: integrate nix colors

      if wezterm.config_builder then
        config = wezterm.config_builder()
      end

      local hostname = io.popen("/bin/hostname"):read("*a"):gsub("%s", "")
      local font_spec = { family = '${font.name}', weight = 'Medium', italic = false }
      local font_size = ${toString font.size}.0

      if hostname == "laptop" then
        font_size = 13
      end

      local font = wezterm.font_with_fallback{
        font_spec,
        { family = 'Symbols Nerd Font Mono', weight = 'Regular', italic = false },
        'Noto Color Emoji',
      }

      if hostname == "laptop" then
        config.font_rules = {
          -- no italics
          {
            font = font
          },
        }
      end

      config.default_cursor_style = 'BlinkingBar'

      config.font = font
      config.font_size = font_size

      config.hide_tab_bar_if_only_one_tab = true
      config.use_fancy_tab_bar = false
      config.tab_bar_at_bottom = false
      config.window_background_opacity = 1.0

      config.color_scheme = "Catppuccin Mocha"

      config.window_frame.font = config.font
      config.window_frame.font_size = font_size

      config.inactive_pane_hsb = {
        saturation = 0.8,
        brightness = 0.7,
      }

      config.keys = {
        {
          key = 'j',
          mods = 'CTRL',
          action = wezterm.action.ActivatePaneDirection'Down'
        },
        {
          key = 'Insert',
          mods = 'SHIFT',
          action = wezterm.action.PasteFrom'Clipboard'
        },
        {
          key = 'v',
          mods = 'CTRL|SHIFT',
          action = wezterm.action.PasteFrom'PrimarySelection'
        },
        {
          key = 'h',
          mods = 'CTRL',
          action = wezterm.action.ActivatePaneDirection'Left'
        },
        {
          key = 'l',
          mods = 'CTRL',
          action = wezterm.action.ActivatePaneDirection'Right'
        },
        {
          key = 'k',
          mods = 'CTRL',
          action = wezterm.action.ActivatePaneDirection'Up'
        },
        {
          key = 'j',
          mods = 'CTRL|SHIFT',
          action = wezterm.action.SplitVertical{domain='CurrentPaneDomain'}
        },
        {
          key = 'l',
          mods = 'CTRL|SHIFT',
          action = wezterm.action.SplitHorizontal{domain='CurrentPaneDomain'}
        },
        {
          key = 'l',
          mods = 'CTRL|SHIFT|ALT',
          action = wezterm.action.ShowDebugOverlay
        },
        {
          key = 'r',
          mods = 'CTRL|SHIFT|ALT',
          action = wezterm.action.RotatePanes'Clockwise'
        },
      }

      config.unix_domains = {
        {
          name = 'unix',
          local_echo_threshold_ms = 10,
        },
      }

      -- config.default_gui_startup_args = { 'connect', 'unix' }
      -- config.default_domain = 'unix'

      config.window_padding = {
        top = '0.5cell',
        bottom = '0.5cell',
        left = '1cell',
        right = '1cell',
      }

      return config
    '';
  };
}