import { describe, expect, it } from 'vitest';

import {
  getSeparationOverview,
  nodeHasBlockedComponents,
  nodeHasPendingSeparation,
  nodeNeedsComponentReview,
} from '../src/features/ui-editor/separationOverview';
import {
  applySeparationProblematicStatuses,
  clearSeparationComponentStatus,
} from '../src/features/ui-editor/separationStatus';
import { getNextMatchingUiTreeNodeTarget } from '../src/features/ui-editor/stageStatusOverview';
import type { Component } from '../src/features/ui-editor/types/Component';
import type { Node } from '../src/features/ui-editor/types/Node';
import type { SpriteAsset } from '../src/features/ui-editor/types/SpriteAsset';
import type { UITree } from '../src/features/ui-editor/types/UITree';

function image(targetGraphic: string | null): Component {
  return {
    Image: {
      target_graphic: targetGraphic,
      image_type: { Simple: { preserve_aspect: false } },
    },
  };
}

function text(font: 'SystemFont' | { Bound: string }): Component {
  return {
    Text: {
      content: '文本',
      font,
      font_style: 'Normal',
      font_sizing: { Fixed: 14 },
      color: [255, 255, 255, 255],
      alignment: 'UpperLeft',
      horizontal_overflow: 'Wrap',
      vertical_overflow: 'Truncate',
      line_spacing: 1,
    },
  };
}

function node(
  id: string,
  component: Component | null,
  componentStatus: Node['metadata']['component_status'] = 'NoProblem',
  children: Node[] = [],
): Node {
  return {
    id,
    layout: {
      transform: {
        anchor_min: [0, 0],
        anchor_max: [1, 1],
        offset_min: [0, 0],
        offset_max: [0, 0],
      },
      custom_minimum_size: [0, 0],
      size_flags_horizontal: 1,
      size_flags_vertical: 1,
      size_flags_stretch_ratio: 1,
      container: 'None',
    },
    metadata: {
      name: id,
      description: '',
      layout_status: 'NoProblem',
      component_status: componentStatus,
      allow_llm_edit_layout: true,
      allow_llm_edit_component: true,
      source: 'System',
    },
    component,
    children,
  };
}

function sprite(id: string): SpriteAsset {
  return {
    asset_id: id,
    metadata: { name: id, asset_type: 'Normal' },
    path: `${id}.png`,
    pixel_size: [16, 16],
    pixels_per_unit: 1,
    border: { left: 0, right: 0, top: 0, bottom: 0 },
  };
}

const sprites = {
  validSprite: sprite('validSprite'),
  unused: sprite('unused'),
};
const trees: UITree[] = [
  {
    src_ui_design: 'page-a',
    root: node('root', image('validSprite'), 'NoProblem', [
      node('review', image(null), { NeedReview: '确认素材' }),
      node('blocked', text('SystemFont'), { Blocked: '素材绑定失败' }),
    ]),
  },
];

describe('getSeparationOverview', () => {
  it('uses per-component helpers to include both image and text slots', () => {
    expect(getSeparationOverview(trees, sprites)).toEqual({
      componentsNeedingAssets: 2,
      assetSlots: 2,
      boundSlots: 1,
      pendingSlots: 1,
      needsAttention: 2,
      blocked: 1,
      independentAssets: 2,
    });
  });

  it('reuses the common preorder next-target search for every separation queue', () => {
    expect(
      getNextMatchingUiTreeNodeTarget(trees, null, (target) =>
        nodeHasPendingSeparation(target),
      )?.node.id,
    ).toBe('review');
    expect(
      getNextMatchingUiTreeNodeTarget(trees, 'review', (target) =>
        nodeHasPendingSeparation(target),
      )?.node.id,
    ).toBe('review');
    expect(
      getNextMatchingUiTreeNodeTarget(trees, null, nodeNeedsComponentReview)
        ?.node.id,
    ).toBe('review');
    expect(
      getNextMatchingUiTreeNodeTarget(trees, null, nodeHasBlockedComponents)
        ?.node.id,
    ).toBe('blocked');
  });
});

describe('separation status writeback', () => {
  it('writes problematic history into NeedReview and overwrites Blocked', () => {
    const problematicTree: UITree[] = [
      {
        src_ui_design: 'page-a',
        root: node('root', null, 'NoProblem', [
          node('problematic', image(null), { Blocked: '旧阻塞' }),
        ]),
      },
    ];
    expect(
      applySeparationProblematicStatuses(problematicTree, [
        {
          node_id: 'problematic',
          problem_description: '当前建议',
          problem_history: ['第一次建议', '最后建议'],
          rework_count: 3,
        },
      ]),
    ).toEqual([]);
    expect(
      problematicTree[0].root.children[0]?.metadata.component_status,
    ).toEqual({
      NeedReview: '自动切分重试已达上限（3 次）\n第一次建议\n最后建议',
    });
    expect(getSeparationOverview(problematicTree, {})).toMatchObject({
      needsAttention: 1,
      blocked: 0,
    });
  });

  it('clears the old status after a successful bound writeback', () => {
    const boundNode = node('bound', image(null), { Blocked: '旧阻塞' });
    clearSeparationComponentStatus(boundNode);
    expect(boundNode.metadata.component_status).toBe('NoProblem');
  });
});