dotfiles/config/git.nix

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

{
  programs.git = {
    enable = true;

    # Basic configuration
    userName = "Menno van Leeuwen";
    userEmail = "menno@vleeuwen.me";
    signing = lib.mkIf (!config.isServer) {
      key = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIM+sKpcREOUjwMMSzEWAso6830wbOi8kUxqpuXWw5gHr";
    };

    # Git settings
    extraConfig = {
      init = {
        defaultBranch = "main";
      };

      core = {
        editor = "micro";
        autocrlf = false;
        filemode = true;
        ignorecase = false;
      };

      push = {
        default = "simple";
        autoSetupRemote = true;
      };

      pull = {
        rebase = false;
      };

      merge = {
        tool = "nvim";
        conflictstyle = "diff3";
      };

      rebase = {
        autoStash = true;
      };

      diff = {
        tool = "delta";
      };

      color = {
        ui = "auto";
        branch = {
          current = "yellow reverse";
          local = "yellow";
          remote = "green";
        };
        diff = {
          meta = "yellow bold";
          frag = "magenta bold";
          old = "red";
          new = "green";
        };
        status = {
          added = "yellow";
          changed = "green";
          untracked = "cyan";
        };
      };

      # URL rewrites for SSH
      url = {
        "git@github.com:" = {
          insteadOf = "https://github.com/";
        };
        "git@gitlab.com:" = {
          insteadOf = "https://gitlab.com/";
        };
        "git@git.mvl.sh:" = {
          insteadOf = "https://git.mvl.sh/";
        };
      };

      # Security
      gpg = lib.mkIf (!config.isServer) {
        format = "ssh";
        ssh = {
          program = "/opt/1Password/op-ssh-sign";
        };
      };

      commit = lib.mkIf (!config.isServer) {
        gpgsign = true;
      };

      # Performance
      feature = {
        manyFiles = true;
      };

      index = {
        version = 4;
      };

      protocol = {
        version = 2;
      };
    };

    # Git aliases
    aliases = {
      # Status and info
      st = "status -sb";
      s = "status";
      stat = "status";

      # Logging
      l = "log --oneline --graph --decorate";
      ll = "log --graph --pretty=format:'%C(yellow)%h%Creset -%C(red)%d%Creset %s %C(green)(%cr) %C(blue)<%an>%Creset' --abbrev-commit --date=relative";
      lol = "log --graph --decorate --pretty=oneline --abbrev-commit";
      lola = "log --graph --decorate --pretty=oneline --abbrev-commit --all";
      hist = "log --pretty=format:'%h %ad | %s%d [%an]' --graph --date=short";

      # Diff
      d = "diff";
      dc = "diff --cached";
      ds = "diff --staged";
      dt = "difftool";

      # Add and commit
      a = "add";
      aa = "add -A";
      ap = "add -p";
      c = "commit";
      cm = "commit -m";
      ca = "commit -am";
      amend = "commit --amend";

      # Checkout and branch
      co = "checkout";
      cb = "checkout -b";
      br = "branch";
      bra = "branch -a";
      bd = "branch -d";
      bdd = "branch -D";

      # Remote
      r = "remote";
      rv = "remote -v";

      # Push and pull
      p = "push";
      pf = "push --force-with-lease";
      pu = "push -u origin";
      pl = "pull";
      pom = "push origin main";
      plom = "pull origin main";

      # Reset and clean
      unstage = "reset HEAD --";
      undo = "reset --soft HEAD~1";
      undohard = "reset --hard HEAD~1";
      clean-branches = "!git branch --merged | grep -v '\\*\\|master\\|main\\|develop' | xargs -n 1 git branch -d";

      # Stash
      ss = "stash save";
      sp = "stash pop";
      sl = "stash list";
      sd = "stash drop";

      # Tags
      tags = "tag -l";

      # Show
      show-files = "show --pretty=\"\" --name-only";

      # Worktree
      wt = "worktree";

      # Maintenance
      cleanup = "!git remote prune origin && git gc && git clean -df && git stash clear";

      # Find
      find = "!git ls-files | grep -i";
      grep = "grep -Ii";

      # Contributors
      contributors = "shortlog --summary --numbered --email";

      # Current branch
      current = "rev-parse --abbrev-ref HEAD";

      # Ignore
      ignore = "!gi() { curl -sL https://www.toptal.com/developers/gitignore/api/$@ ;}; gi";
    };

    # Global gitignore
    ignores = [
      # OS generated files
      ".DS_Store"
      ".DS_Store?"
      "._*"
      ".Spotlight-V100"
      ".Trashes"
      "ehthumbs.db"
      "Thumbs.db"

      # Editor files
      "*.swp"
      "*.swo"
      "*~"
      ".idea/"

      # Logs
      "*.log"

      # Runtime data
      "pids"
      "*.pid"
      "*.seed"
      "*.pid.lock"

      # Coverage directory used by tools like istanbul
      "coverage/"

      # Dependency directories
      "node_modules/"

      # Optional npm cache directory
      ".npm"

      # Optional REPL history
      ".node_repl_history"

      # Environment variables
      ".env.local"
      ".env.*.local"

      # Temporary folders
      "tmp/"
      "temp/"
    ];
  };

  # Delta for better git diffs
  programs.git.delta = {
    enable = true;
    options = {
      features = "decorations";
      syntax-theme = "Dracula";
      plus-style = "syntax #003800";
      minus-style = "syntax #3f0001";
      navigate = true;
      light = false;
      line-numbers = true;
      side-by-side = false;
      hunk-header-decoration-style = "blue box";
      hunk-header-file-style = "red";
      hunk-header-line-number-style = "#067a00";
      hunk-header-style = "file line-number syntax";
    };
  };

  # Git hooks (if you want to add any)
  # home.file.".config/git/hooks" = {
  #   source = ./git-hooks;
  #   recursive = true;
  # };
}