{ pkgs, ... }:

{
  # https://devenv.sh/basics/
  env = {
    PROJECT_NAME = "go-twitch";

    MOCK_DATA_PATH = "~/.config/twitch-cli/eventCache.db";
    MOCK_API_PORT = "3000";

    CHANGELOG_FILE = "CHANGELOG.md";
  };

  # https://devenv.sh/packages/
  packages = with pkgs; [
    git
    git-cliff
    twitch-cli
  ];

  # https://devenv.sh/scripts/
  scripts = {
    welcome-banner.exec = ''
      echo "Welcome to the $PROJECT_NAME development environment."
      echo "Golang version: $(go version | cut -d ' ' -f 3)"
    '';

    gen-changelog.exec = "git cliff -o $CHANGELOG_FILE";
    release.exec = ''
      set -euo pipefail

      if [ -n "$(git status --porcelain)" ]; then
        printf "Working directory is not clean. Please commit or stash your changes.\n"
        exit 1
      fi

      version="$(git cliff --bumped-version)"
      changelog=$(git cliff --unreleased --strip all | sed -e '/^#/d' -e '/^$/d')
      git cliff --bump --unreleased --prepend $CHANGELOG_FILE
      git add $CHANGELOG_FILE
      git commit -m "chore(release): release $version"
      git tag "$version" -m "Release $version" -m "$changelog"
      git push --tags
    '';

    gen-mock-data.exec = "twitch-cli mock-api generate";
    rm-mock-data.exec = "rm $MOCK_DATA_PATH";
    start-mock-api.exec = "twitch-cli mock-api start -p $MOCK_API_PORT";
  };

  enterShell = "welcome-banner";

  # https://devenv.sh/languages/
  languages = {
    nix.enable = true;
    go.enable = true;
  };

  # https://devenv.sh/pre-commit-hooks/
  # pre-commit.hooks.shellcheck.enable = true;

  # https://devenv.sh/processes/
  # processes.ping.exec = "ping example.com";
  process.before = ''
    if [ ! -f $MOCK_DATA_PATH ]; then
      gen-mock-data
    fi
  '';
  processes.mock-api.exec = "start-mock-api";

  # See full reference at https://devenv.sh/reference/options/
}