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

{
  programs = {
    git = {
      enable = true;
      extraConfig = {
        user.private.name = "Michael Mandl";
        user.private.email = "mandlm@molez.net";
        user.private.signingkey = "4AA25D647AA54CC7";

        user.swp.name = "Michael Mandl";
        user.swp.email = "mandl@vi-bim.de";
        user.swp.signingkey = "4E60F44227F611B4";

        core.editor = "nvim";
        fetch.writeCommitGraph = true;
        format.pretty = "format:%C(yellow)%h %Cblue%>(12)%ad %C(red)%G? %Cgreen%<(7,trunc)%aN%Cred%d %Creset%s";
        init.defaultBranch = "main";
        log.date = "relative";
        pull.rebase = true;
        rebase.autostash = true;
        rerere.enabled = true;
        worktree.guessRemote = true;

        diff.external = "difft --background light";
        diff.tool = "difftastic";
        difftool.prompt = false;
        difftool.difftastic.cmd = "difft --background light \"$LOCAL\" \"$REMOTE\"";
        pager.difftool = true;

        merge.tool = "nvim";
        mergetool.prompt = false;
        mergetool.nvim.cmd = "nvim -f -c \"Gdiffsplit!\" \"$MERGED\"";
      };

      aliases = {
        identity = ''! git config user.name "$(git config user.$1.name)"; git config user.email "$(git config user.$1.email)"; git config user.signingkey "$(git config user.$1.signingkey)"; git config commit.gpgsign "true"; : '';
        clone-worktree = ''! mkdir $2; git clone $1 $2/.base; BRANCH=`git -C $2/.base symbolic-ref --short HEAD`; echo "branch is $BRANCH"; git -C $2/.base checkout --detach HEAD; git -C $2/.base worktree add ../$BRANCH; :'';
        graph = "log --graph --all";
      };

      ignores = [
        ".env"
        ".direnv"
        "*.swp"
      ];
    };
  };
}