require "test_helper"

class DocumentTest < ActiveSupport::TestCase
  setup do
    @owner = create_user("owner@example.com")
    @doc = create_document(@owner)
  end

  test "rejects content that is not a numolus document" do
    doc = @owner.owned_documents.build(title: "x", content: "[1,2]")
    assert_not doc.valid?
    doc.content = "{nope"
    assert_not doc.valid?
  end

  test "role_for: owner, member, link token, and the strongest grant wins" do
    bob = create_user("bob@example.com")
    assert_equal :owner, @doc.role_for(user: @owner)
    assert_nil @doc.role_for(user: bob)

    viewer_link = @doc.share_links.create!(role: :viewer, created_by: @owner)
    editor_link = @doc.share_links.create!(role: :editor, created_by: @owner)
    assert_equal :viewer, @doc.role_for(token: viewer_link.token)

    DocumentMembership.grant!(document: @doc, user: bob, role: :viewer, source: :invite)
    assert_equal :viewer, @doc.role_for(user: bob)
    assert_equal :editor, @doc.role_for(user: bob, token: editor_link.token)

    editor_link.revoke!
    assert_nil @doc.role_for(token: editor_link.token)
  end

  test "revoking a link removes access gained through it, but not invitations" do
    carl = create_user("carl@example.com")
    dora = create_user("dora@example.com")
    link = @doc.share_links.create!(role: :editor, created_by: @owner)
    DocumentMembership.grant!(document: @doc, user: carl, role: :editor, source: :link, share_link: link)
    DocumentMembership.grant!(document: @doc, user: dora, role: :editor, source: :link, share_link: link)
    DocumentMembership.grant!(document: @doc, user: dora, role: :viewer, source: :invite)

    link.revoke!
    assert_nil @doc.role_for(user: carl)
    assert_equal :viewer, @doc.role_for(user: dora)
  end

  test "a link never weakens a membership" do
    bob = create_user("bob@example.com")
    DocumentMembership.grant!(document: @doc, user: bob, role: :editor, source: :invite)
    DocumentMembership.grant!(document: @doc, user: bob, role: :viewer, source: :link)
    assert_equal :editor, @doc.role_for(user: bob)
  end
end