{ lib, pkgs, config, ... }:
let
  sshPub = builtins.fromTOML (
    builtins.readFile ../configs/ssh-pubkeys.toml
  );
in
{
  home.file.".ssh/allowed_signers".text = lib.concatMapStrings (x: "franck@fcuny.net ${x}\n") (with sshPub; [ aptos work git ykey-laptop op ]);

  programs.git = {
    enable = true;
    userName = "Franck Cuny";
    userEmail = "franck@fcuny.net";

    signing = {
      key = "key::${sshPub.op}";
      signByDefault = true;
    };

    aliases = {
      amend = "commit --amend";
      ll = "log --pretty=\"format:%h %G? %aN  %s\"";
    };

    extraConfig = {
      core.whitespace = "trailing-space,space-before-tab";
      color.ui = "true";

      gpg.format = "ssh";
      gpg.ssh.allowedSignersFile = "~/.ssh/allowed_signers";
      gpg.ssh.program = "/Applications/1Password.app/Contents/MacOS/op-ssh-sign";

      # abort if the remote branch does not match the local one
      push.default = "simple";

      # https://adamj.eu/tech/2024/01/18/git-improve-diff-histogram/
      diff.algorithm = "histogram";

      init.defaultBranch = "main";

      pull.rebase = true;
      rebase = {
        # Automatically create a temporary stash entry before the
        # operation begins, and apply it after the operation ends.
        autoStash = true;
        # Print a warning if some commits are removed
        missingCommitsCheck = "warn";
      };

      branch.autosetuprebase = "remote";
      branch.sort = "authordate";

      commit.template = "${config.xdg.dataHome}/git/commit.template";
    };

    ignores = [
      "*~"
      ".direnv"
      "__pycache__"
    ];
  };

  xdg.dataFile."git/commit.template".source = pkgs.writeText "commit.template" ''

    # (If applied, this commit will...) <subject>

    # Explain why this change is being made

    # --- COMMIT END ---
    # Remember to
    #    Use the imperative mood, present tense: `change' not `changed' nor `changes'
    #    Do not end the subject line with a period
    #    Use the body to explain what and why vs. how
    #    Can use multiple lines with "-" for bullet points in body
'';

  home.packages = with pkgs; [
    gitAndTools.pre-commit
  ];
}