# Configuration of the shell.
# TODO: switch to a shell from this century

{ pkgs, lib, config, ... }:

let cfg = config.custom.bash;

in with lib; {

  options.custom.bash = with types; {
    extraAliases = mkOption {
      default = {};
    };
  };

  config = {

    home.packages = [ pkgs.perl ];

    # Configure the shell itself
    programs.bash = with pkgs; {
      enable = true;
      historyIgnore = [
        "poweroff"
        "reboot"
        "exit"
        "exa"
        "fg"
        "cd"
        "ls"
        "z"
      ];
      historyControl = [
        "ignorespace"
        "ignoredups"
      ];
      historySize = 100000;
      shellAliases = {
        # General aliases
        ":q" = "exit";
        "t"  = "${exa}/bin/exa -T";
        ".." = "cd ..";

        # Git command aliases
        "rebase"      = "git rebase -i --autosquash --committer-date-is-author-date";
        "uncommit"    = "git reset --soft HEAD~";

        # Git selectors
        ".changed"    = "git diff --diff-filter=AM --name-only";
        ".staged"     = "git diff --diff-filter=AM --name-only --cached";
        ".conflicted" = "git status --porcelain | rg '^UU' | sd '^.. ' ''";
        ".branches"   = "git branch -a | rg -v '\*|HEAD' | sd 'remotes/origin/' '' | sd '^ *' '' | uniq";

        # File extension selectors
        ".hs"   = "${fd}/bin/fd -e hs";
        ".nix"  = "${fd}/bin/fd -e nix";
        ".py"   = "${fd}/bin/fd -e py";
        ".rs"   = "${fd}/bin/fd -e rs";
        ".sh"   = "${fd}/bin/fd -e sh";
        ".yaml" = "${fd}/bin/fd -e yaml -e yml";
        ".yml"  = ".yaml";
      } // cfg.extraAliases;
      bashrcExtra = ''
        export PATH=${../../script}:/home/riley/.nix-profile/bin:$PATH
        export EDITOR=${helix}/bin/hx
      '';
    };

    # Configure the prompt
    programs.starship = {
      enable = true;
      settings = {
        add_newline = false;
        format = ''
          $username at $hostname // $directory$git_branch $character
        '';
        character = {
          success_symbol = "[>](bold #1fed71)";
          error_symbol = "[!](bold #ff8426)";
        };
        username = {
          show_always = true;
          format = "[$user]($style)";
          style_user = "bold #40de46";
        };
        hostname = {
          ssh_only = false;
          format = "[$hostname]($style)";
          style = "bold #1fb8ff";
        };
        directory = {
          format = "[$path]($style)";
        };
        git_branch = {
          format = " :: [$symbol$branch]($style)";
          style = "bold #c745ff";
        };
      };
    };

  };
  
}