import 'package:flutter_test/flutter_test.dart';

import 'package:chain_studio_flow_editor/src/flow_project.dart';

void main() {
  group('parseFlowProject', () {
    test('reads a bare top-level project key', () {
      const yaml = 'name: demo\nproject: client-a\nsteps: []\n';
      expect(parseFlowProject(yaml), 'client-a');
    });

    test('strips quotes and normalizes casing/spaces', () {
      expect(parseFlowProject('project: "Client A"'), 'client-a');
      // Non-[a-z0-9] that isn't a separator is dropped without a
      // dash — matches the hub's normalize_project_slug.
      expect(parseFlowProject("project: 'Recl∆Im'"), 'reclim');
    });

    test('returns empty when no top-level project is declared', () {
      const yaml = 'name: demo\ninputs:\n  topic: text\nsteps: []\n';
      expect(parseFlowProject(yaml), '');
    });

    test('ignores an indented project inside a step with-block', () {
      const yaml =
          'name: demo\nsteps:\n  - id: s\n    use: x@^0\n    with:\n      project: not-this\n';
      expect(parseFlowProject(yaml), '');
    });

    test('a top-level project still wins over a later nested one', () {
      const yaml =
          'project: top\nsteps:\n  - id: s\n    with:\n      project: nested\n';
      expect(parseFlowProject(yaml), 'top');
    });
  });

  group('project filter semantics', () {
    test('no project key counts as general (display only)', () {
      expect(effectiveFlowProject(''), 'general');
      expect(effectiveFlowProject('client-a'), 'client-a');
    });

    test('empty active workspace shows every flow', () {
      expect(flowVisibleInProject('', ''), isTrue);
      expect(flowVisibleInProject('client-a', ''), isTrue);
    });

    test('general shows keyless flows and explicit general ones', () {
      expect(flowVisibleInProject('', 'general'), isTrue);
      expect(flowVisibleInProject('general', 'general'), isTrue);
      expect(flowVisibleInProject('client-a', 'general'), isFalse);
    });

    test('a project shows only its own flows', () {
      expect(flowVisibleInProject('client-a', 'client-a'), isTrue);
      expect(flowVisibleInProject('', 'client-a'), isFalse);
      expect(flowVisibleInProject('client-b', 'client-a'), isFalse);
    });
  });

  group('normalizeProjectSlug', () {
    test('collapses separators and trims trailing dashes', () {
      expect(normalizeProjectSlug('Projekt  Alpha__'), 'projekt-alpha');
      expect(normalizeProjectSlug('a - b - c'), 'a-b-c');
    });

    test('empty stays empty', () {
      expect(normalizeProjectSlug('   '), '');
    });
  });
}