require_relative "test_helper"

class ConfigTest < Minitest::Test
  def test_nil_contents_is_unconfigured
    config = Backlog::Config.new(nil)
    refute config.configured?
    assert_nil config.board
  end

  def test_blank_contents_is_unconfigured
    config = Backlog::Config.new("   \n")
    refute config.configured?
  end

  def test_reads_board_key
    config = Backlog::Config.new("board=llf-schema\n")
    assert config.configured?
    assert_equal "llf-schema", config.board
  end

  def test_reads_legacy_yaml_style_board_key
    config = Backlog::Config.new("---\nboard: llf-schema\n")
    assert config.configured?
    assert_equal "llf-schema", config.board
  end

  def test_lines_without_separator_are_ignored
    config = Backlog::Config.new("# comment\njunk line\n")
    refute config.configured?
  end

  def test_contents_without_board_key_is_unconfigured
    config = Backlog::Config.new("other=value\n")
    refute config.configured?
  end

  def test_reads_tracker_key
    config = Backlog::Config.new("tracker=forgejo:jared/cc-os\n")
    assert config.tracker_configured?
    assert_equal "forgejo:jared/cc-os", config.tracker
  end

  def test_tracker_unconfigured_when_absent
    config = Backlog::Config.new("board=llf-schema\n")
    refute config.tracker_configured?
  end

  def test_merge_sets_new_key_on_nil_contents
    contents = Backlog::Config.merge(nil, "tracker", "forgejo:jared/cc-os")
    assert_equal "tracker=forgejo:jared/cc-os\n", contents
  end

  def test_merge_preserves_other_keys
    existing = "board=llf-schema\nother=kept\n"
    updated_contents = Backlog::Config.merge(existing, "tracker", "planka:llf-schema")
    updated = Backlog::Config.new(updated_contents)

    assert_equal "llf-schema", updated.board
    assert_equal "planka:llf-schema", updated.tracker
    assert_equal "kept", updated.to_h["other"]
  end

  def test_merge_overwrites_existing_value_for_key
    existing = "tracker=repo:old\n"
    updated = Backlog::Config.new(Backlog::Config.merge(existing, "tracker", "repo:new"))
    assert_equal "repo:new", updated.tracker
  end
end