import { expect, test } from 'vitest';

import type {
  JumpHopPath,
  JumpHopTileAsset,
} from '../../../packages/shared/src/contracts/jumpHop';
import {
  buildJumpHopVisiblePlatforms,
  getJumpHopCharacterTopFaceVisualPosition,
  getJumpHopCharacterVisualPosition,
  getJumpHopJumpFeedbackLabel,
  getJumpHopLandingAssistVisualPosition,
  getJumpHopPlatformVisualSize,
  getJumpHopStatusLabel,
  isJumpHopLandingInsidePlatformFootprint,
  resolveJumpHopCharacterCanvasPosition,
  selectJumpHopTileAsset,
} from './jumpHopRuntimeModel';

test('跳一跳地块池按平台编号从 18 个素材中抽取而不是按类型压扁', () => {
  const tileAssets = Array.from({ length: 18 }, (_, index) => ({
    tileType: 'normal',
    tileId: `tile-${String(index + 1).padStart(2, '0')}`,
    imageSrc: `asset-${index + 1}`,
    imageObjectKey: `key-${index + 1}`,
    assetObjectId: `object-${index + 1}`,
    sourceAtlasCell: `row-${Math.floor(index / 3) + 1}-col-${(index % 3) + 1}`,
    atlasRow: Math.floor(index / 3) + 1,
    atlasCol: (index % 3) + 1,
    visualWidth: 256,
    visualHeight: 256,
    topSurfaceRadius: 42,
    landingRadius: 34,
  })) satisfies JumpHopTileAsset[];

  const first = selectJumpHopTileAsset(tileAssets, '森林茶馆', 1, 'platform-1');
  const second = selectJumpHopTileAsset(tileAssets, '森林茶馆', 2, 'platform-2');

  expect(first?.imageSrc).not.toBe(second?.imageSrc);
  expect(first?.imageSrc).toMatch(/^asset-/);
  expect(second?.imageSrc).toMatch(/^asset-/);
});

test('跳一跳可见平台窗口固定为当前块和下一个块并携带选中的地块素材', () => {
  const path: JumpHopPath = {
    seed: 'forest-tea',
    difficulty: 'standard',
    finishIndex: 999,
    cameraPreset: 'portrait-isometric-9x16',
    scoring: {
      chargeToDistanceRatio: 0.004,
      maxChargeMs: 900,
      hitBonus: 20,
      perfectBonus: 60,
    },
    platforms: [
      platform(0, 0, 'start'),
      platform(1.2, 1.8, 'normal'),
      platform(-0.3, 3.5, 'target'),
      platform(0.8, 5.1, 'normal'),
    ],
  };
  const tileAssets = Array.from({ length: 18 }, (_, index) => ({
    tileType: 'normal',
    tileId: `tile-${String(index + 1).padStart(2, '0')}`,
    imageSrc: `asset-${index + 1}`,
    imageObjectKey: `key-${index + 1}`,
    assetObjectId: `object-${index + 1}`,
    sourceAtlasCell: `row-${Math.floor(index / 3) + 1}-col-${(index % 3) + 1}`,
    atlasRow: Math.floor(index / 3) + 1,
    atlasCol: (index % 3) + 1,
    visualWidth: 256,
    visualHeight: 256,
    topSurfaceRadius: 42,
    landingRadius: 34,
  })) satisfies JumpHopTileAsset[];

  const visible = buildJumpHopVisiblePlatforms(path, 1, tileAssets);

  expect(visible).toHaveLength(2);
  expect(visible[0]?.asset?.imageSrc).toMatch(/^asset-/);
  expect(visible[1]?.asset?.imageSrc).toMatch(/^asset-/);
});

test('跳一跳当前块按目标方向偏向场地侧边且角色落在当前地块上', () => {
  const path: JumpHopPath = {
    seed: 'forest-tea',
    difficulty: 'standard',
    finishIndex: 999,
    cameraPreset: 'portrait-isometric-9x16',
    scoring: {
      chargeToDistanceRatio: 0.004,
      maxChargeMs: 900,
      hitBonus: 20,
      perfectBonus: 60,
    },
    platforms: [
      platform(0, 0, 'start'),
      platform(0.8, 1.2, 'normal'),
      platform(-0.2, 2.4, 'target'),
    ],
  };

  const visible = buildJumpHopVisiblePlatforms(path, 0, []);
  const character = getJumpHopCharacterVisualPosition(
    {
      runId: 'run-1',
      profileId: 'profile-1',
      ownerUserId: 'user-1',
      status: 'playing',
      currentPlatformIndex: 0,
      successfulJumpCount: 0,
      durationMs: 0,
      score: 0,
      combo: 0,
      path,
      lastJump: null,
      startedAtMs: 1000,
      finishedAtMs: null,
    },
    visible,
  );

  expect(visible[0]?.screenY).toBeGreaterThanOrEqual(60);
  expect(visible[0]?.screenY).toBeLessThanOrEqual(66);
  expect(visible[1]?.screenY).toBeGreaterThanOrEqual(40);
  expect(visible[1]?.screenY).toBeLessThan(visible[0]?.screenY ?? 0);
  expect(visible).toHaveLength(2);
  expect(visible[0]?.screenX).toBeLessThan(50);
  expect(visible[1]?.screenX).toBeGreaterThan(50);
  expect(Math.abs((visible[1]?.screenX ?? 0) - (visible[0]?.screenX ?? 0))).toBeGreaterThan(5);
  expect(character?.screenX).toBeCloseTo(visible[0]?.screenX ?? 0, 1);
  expect(character?.screenY).toBeCloseTo(visible[0]?.screenY ?? 0, 1);
});

test('跳一跳目标地块始终显示在当前脚下块的正负 45 度方向', () => {
  const path: JumpHopPath = {
    seed: 'forest-tea',
    difficulty: 'standard',
    finishIndex: 999,
    cameraPreset: 'portrait-isometric-9x16',
    scoring: {
      chargeToDistanceRatio: 0.004,
      maxChargeMs: 900,
      hitBonus: 20,
      perfectBonus: 60,
    },
    platforms: [
      platform(0, 0, 'start'),
      platform(1.78, 1.78, 'normal'),
      platform(0, 3.56, 'target'),
    ],
  };
  const stageSize = { width: 320, height: (320 * 16) / 9 };

  const firstVisible = buildJumpHopVisiblePlatforms(path, 0, []);
  const firstDx = Math.abs(
    ((firstVisible[1]!.screenX - firstVisible[0]!.screenX) / 100) *
      stageSize.width,
  );
  const firstDy = Math.abs(
    ((firstVisible[1]!.screenY - firstVisible[0]!.screenY) / 100) *
      stageSize.height,
  );

  expect(firstVisible[1]!.screenX).toBeGreaterThan(firstVisible[0]!.screenX);
  expect(firstVisible[0]!.screenX).toBeLessThan(50);
  expect(firstVisible[1]!.screenX).toBeGreaterThan(50);
  expect(firstDx).toBeCloseTo(firstDy, 5);

  const secondVisible = buildJumpHopVisiblePlatforms(path, 1, []);
  const secondDx = Math.abs(
    ((secondVisible[1]!.screenX - secondVisible[0]!.screenX) / 100) *
      stageSize.width,
  );
  const secondDy = Math.abs(
    ((secondVisible[1]!.screenY - secondVisible[0]!.screenY) / 100) *
      stageSize.height,
  );

  expect(secondVisible[1]!.screenX).toBeLessThan(secondVisible[0]!.screenX);
  expect(secondVisible[0]!.screenX).toBeGreaterThan(50);
  expect(secondVisible[1]!.screenX).toBeLessThan(50);
  expect(secondDx).toBeCloseTo(secondDy, 5);
});

test('跳一跳目标地块按真实距离在最小和当前最大间距之间投影', () => {
  const path: JumpHopPath = {
    seed: 'forest-tea',
    difficulty: 'standard',
    finishIndex: 999,
    cameraPreset: 'portrait-isometric-9x16',
    scoring: {
      chargeToDistanceRatio: 0.004,
      maxChargeMs: 900,
      hitBonus: 20,
      perfectBonus: 60,
    },
    platforms: [
      platform(0, 0, 'start'),
      platform(0.979, 0.979, 'normal'),
    ],
  };
  const stageSize = { width: 320, height: (320 * 16) / 9 };

  const visible = buildJumpHopVisiblePlatforms(path, 0, []);
  const dx = Math.abs(
    ((visible[1]!.screenX - visible[0]!.screenX) / 100) *
      stageSize.width,
  );
  const dy = Math.abs(
    ((visible[1]!.screenY - visible[0]!.screenY) / 100) *
      stageSize.height,
  );

  expect(visible[1]!.screenY).toBeGreaterThan(47);
  expect(visible[1]!.screenY).toBeLessThan(64);
  expect(Math.abs(visible[1]!.screenX - visible[0]!.screenX)).toBeLessThan(
    30.3,
  );
  expect(dx).toBeCloseTo(dy, 5);
});

test('跳一跳可见地块不再按深度做倍率缩放', () => {
  const path: JumpHopPath = {
    seed: 'forest-tea',
    difficulty: 'standard',
    finishIndex: 999,
    cameraPreset: 'portrait-isometric-9x16',
    scoring: {
      chargeToDistanceRatio: 0.004,
      maxChargeMs: 900,
      hitBonus: 20,
      perfectBonus: 60,
    },
    platforms: [
      platform(0, 0, 'start'),
      platform(0.8, 1.2, 'normal'),
      platform(-0.2, 2.4, 'target'),
    ],
  };

  const visible = buildJumpHopVisiblePlatforms(path, 0, []);
  const currentSize = getJumpHopPlatformVisualSize(
    visible[0]!.platform,
    visible[0]!.scale,
  );
  const targetSize = getJumpHopPlatformVisualSize(
    visible[1]!.platform,
    visible[1]!.scale,
  );

  expect(visible[0]?.scale).toBe(1);
  expect(visible[1]?.scale).toBe(1);
  expect(currentSize.width).toBe(targetSize.width);
  expect(currentSize.height).toBe(targetSize.height);
});

test('跳一跳三维角色画布坐标按下一块方向偏向场地侧边', () => {
  const path: JumpHopPath = {
    seed: 'forest-tea',
    difficulty: 'standard',
    finishIndex: 999,
    cameraPreset: 'portrait-isometric-9x16',
    scoring: {
      chargeToDistanceRatio: 0.004,
      maxChargeMs: 900,
      hitBonus: 20,
      perfectBonus: 60,
    },
    platforms: [
      platform(0, 0, 'start'),
      platform(0.8, 1.2, 'normal'),
      platform(-0.2, 2.4, 'target'),
    ],
  };

  const visible = buildJumpHopVisiblePlatforms(path, 0, []);
  const character = getJumpHopCharacterVisualPosition(
    {
      runId: 'run-1',
      profileId: 'profile-1',
      ownerUserId: 'user-1',
      status: 'playing',
      currentPlatformIndex: 0,
      successfulJumpCount: 0,
      durationMs: 0,
      score: 0,
      combo: 0,
      path,
      lastJump: null,
      startedAtMs: 1000,
      finishedAtMs: null,
    },
    visible,
  );

  const canvasPosition = resolveJumpHopCharacterCanvasPosition(character, {
    width: 320,
    height: 568,
  });

  expect(canvasPosition?.x).toBeGreaterThan(100);
  expect(canvasPosition?.x).toBeLessThan(125);
  expect(canvasPosition?.y).toBeGreaterThan(330);
  expect(canvasPosition?.y).toBeLessThan(370);
});

test('跳一跳运行态当前地块视觉尺寸使用真实规格', () => {
  const size = getJumpHopPlatformVisualSize(platform(0, 0, 'start'), 1);

  expect(size.width).toBeCloseTo(116, 2);
  expect(size.height).toBeCloseTo(96, 2);
});

test('跳一跳落点预测按蓄力值沿下一地块中心方向投影', () => {
  const path: JumpHopPath = {
    seed: 'forest-tea',
    difficulty: 'standard',
    finishIndex: 999,
    cameraPreset: 'portrait-isometric-9x16',
    scoring: {
      chargeToDistanceRatio: 0.004,
      maxChargeMs: 900,
      hitBonus: 20,
      perfectBonus: 60,
    },
    platforms: [
      platform(0, 0, 'start'),
      platform(0.8, 1.2, 'normal'),
      platform(-0.2, 2.4, 'target'),
    ],
  };
  const run = {
    runId: 'run-1',
    profileId: 'profile-1',
    ownerUserId: 'user-1',
    status: 'playing',
    currentPlatformIndex: 0,
    successfulJumpCount: 0,
    durationMs: 0,
    score: 0,
    combo: 0,
    path,
    lastJump: null,
    startedAtMs: 1000,
    finishedAtMs: null,
  } as const;
  const visible = buildJumpHopVisiblePlatforms(path, 0, []);
  const character = getJumpHopCharacterVisualPosition(run, visible);
  const current = visible[0]!;
  const target = visible[1]!;
  const stageSize = { width: 320, height: 568 };
  const targetWorldDistance = Math.hypot(
    target.platform.x - current.platform.x,
    target.platform.y - current.platform.y,
  );
  const fullDragDistance =
    targetWorldDistance / path.scoring.chargeToDistanceRatio;

  const fullAssist = getJumpHopLandingAssistVisualPosition(
    run,
    visible,
    character,
    stageSize,
    fullDragDistance,
  );
  const halfAssist = getJumpHopLandingAssistVisualPosition(
    run,
    visible,
    character,
    stageSize,
    fullDragDistance / 2,
  );

  expect(fullAssist?.screenX).toBeCloseTo(target.screenX, 1);
  expect(fullAssist?.screenY).toBeCloseTo(target.screenY, 1);
  expect(halfAssist?.screenX).toBeCloseTo(
    current.screenX + (target.screenX - current.screenX) / 2,
    1,
  );
  expect(halfAssist?.screenY).toBeCloseTo(
    current.screenY + (target.screenY - current.screenY) / 2,
    1,
  );
});

test('跳一跳落点预测忽略旧客户端拖拽方向', () => {
  const path: JumpHopPath = {
    seed: 'forest-tea',
    difficulty: 'standard',
    finishIndex: 999,
    cameraPreset: 'portrait-isometric-9x16',
    scoring: {
      chargeToDistanceRatio: 0.004,
      maxChargeMs: 900,
      hitBonus: 20,
      perfectBonus: 60,
    },
    platforms: [
      platform(0, 0, 'start'),
      platform(0.8, 1.2, 'normal'),
      platform(-0.2, 2.4, 'target'),
    ],
  };
  const run = {
    runId: 'run-1',
    profileId: 'profile-1',
    ownerUserId: 'user-1',
    status: 'playing',
    currentPlatformIndex: 0,
    successfulJumpCount: 0,
    durationMs: 0,
    score: 0,
    combo: 0,
    path,
    lastJump: null,
    startedAtMs: 1000,
    finishedAtMs: null,
  } as const;
  const visible = buildJumpHopVisiblePlatforms(path, 0, []);
  const character = getJumpHopCharacterVisualPosition(run, visible);
  const current = visible[0]!;
  const target = visible[1]!;
  const stageSize = { width: 320, height: 568 };
  const targetWorldDistance = Math.hypot(
    target.platform.x - current.platform.x,
    target.platform.y - current.platform.y,
  );
  const fullDragDistance =
    targetWorldDistance / path.scoring.chargeToDistanceRatio;

  const assist = getJumpHopLandingAssistVisualPosition(
    run,
    visible,
    character,
    stageSize,
    fullDragDistance,
  );

  expect(assist?.screenX).toBeCloseTo(target.screenX, 1);
  expect(assist?.screenY).toBeCloseTo(target.screenY, 1);
  expect(assist?.isOnTargetPlatform).toBe(true);
});

test('跳一跳落点预测从角色真实脚点指向下一地块顶面中心', () => {
  const path: JumpHopPath = {
    seed: 'forest-tea',
    difficulty: 'standard',
    finishIndex: 999,
    cameraPreset: 'portrait-isometric-9x16',
    scoring: {
      chargeToDistanceRatio: 0.004,
      maxChargeMs: 900,
      hitBonus: 20,
      perfectBonus: 60,
    },
    platforms: [
      platform(0, 0, 'start'),
      platform(0.8, 1.2, 'normal'),
      platform(-0.2, 2.4, 'target'),
    ],
  };
  const run = {
    runId: 'run-1',
    profileId: 'profile-1',
    ownerUserId: 'user-1',
    status: 'playing',
    currentPlatformIndex: 1,
    successfulJumpCount: 1,
    durationMs: 0,
    score: 1,
    combo: 0,
    path,
    lastJump: {
      chargeMs: 300,
      jumpDistance: 1.0,
      targetPlatformIndex: 1,
      landedX: 0.72,
      landedY: 1.16,
      result: 'hit',
    },
    startedAtMs: 1000,
    finishedAtMs: null,
  } as const;
  const visible = buildJumpHopVisiblePlatforms(path, 1, []);
  const character = getJumpHopCharacterVisualPosition(run, visible);
  const current = visible[0]!;
  const target = visible[1]!;
  const targetPosition = getJumpHopCharacterTopFaceVisualPosition(target);
  const stageSize = { width: 320, height: 568 };
  const targetWorldDistance = Math.hypot(
    target.platform.x - run.lastJump.landedX,
    target.platform.y - run.lastJump.landedY,
  );
  const fullDragDistance =
    targetWorldDistance / path.scoring.chargeToDistanceRatio;

  const fullAssist = getJumpHopLandingAssistVisualPosition(
    run,
    visible,
    character,
    stageSize,
    fullDragDistance,
  );
  const halfAssist = getJumpHopLandingAssistVisualPosition(
    run,
    visible,
    character,
    stageSize,
    fullDragDistance / 2,
  );

  expect(character?.screenX).not.toBeCloseTo(current.screenX, 1);
  expect(fullAssist?.landedWorldX).toBeCloseTo(target.platform.x, 5);
  expect(fullAssist?.landedWorldY).toBeCloseTo(target.platform.y, 5);
  expect(fullAssist?.screenX).toBeCloseTo(targetPosition.screenX, 1);
  expect(fullAssist?.screenY).toBeCloseTo(targetPosition.screenY, 1);
  expect(fullAssist?.isOnTargetPlatform).toBe(true);
  expect(halfAssist?.landedWorldX).toBeCloseTo(
    (run.lastJump.landedX + target.platform.x) / 2,
    5,
  );
  expect(halfAssist?.landedWorldY).toBeCloseTo(
    (run.lastJump.landedY + target.platform.y) / 2,
    5,
  );
  expect(halfAssist?.screenX).toBeCloseTo(
    (character!.screenX + targetPosition.screenX) / 2,
    1,
  );
  expect(halfAssist?.screenY).toBeCloseTo(
    (character!.screenY + targetPosition.screenY) / 2,
    1,
  );
  expect(halfAssist?.screenX).not.toBeCloseTo(
    current.screenX + (target.screenX - current.screenX) / 2,
    1,
  );
});

test('跳一跳落点预测用完整视觉顶面 footprint 判断命中', () => {
  const target = {
    ...platform(1, 0, 'normal'),
    width: 2,
    height: 0.6,
    landingRadius: 10,
  };

  expect(isJumpHopLandingInsidePlatformFootprint(target, 1.99, 0)).toBe(true);
  expect(isJumpHopLandingInsidePlatformFootprint(target, 2.01, 0)).toBe(false);
  expect(isJumpHopLandingInsidePlatformFootprint(target, 1, 0.29)).toBe(true);
  expect(isJumpHopLandingInsidePlatformFootprint(target, 1, 0.31)).toBe(false);
  expect(isJumpHopLandingInsidePlatformFootprint(target, 1.6, 0.12)).toBe(true);
  expect(isJumpHopLandingInsidePlatformFootprint(target, 1.7, 0.12)).toBe(false);
  expect(
    isJumpHopLandingInsidePlatformFootprint(
      { ...platform(0.8, 1.2, 'normal'), width: 2, height: 2 },
      1.3,
      1.6,
    ),
  ).toBe(true);
  expect(
    isJumpHopLandingInsidePlatformFootprint(
      { ...platform(0.8, 1.2, 'normal'), width: 2, height: 2 },
      1.4,
      1.8,
    ),
  ).toBe(false);
  expect(
    isJumpHopLandingInsidePlatformFootprint(
      { ...platform(0.8, 1.2, 'normal'), width: 2, height: 2 },
      -0.19,
      1.2,
    ),
  ).toBe(true);
});

test('跳一跳成功落地后保留真实落点偏移而不是吸附到地块中心', () => {
  const path: JumpHopPath = {
    seed: 'forest-tea',
    difficulty: 'standard',
    finishIndex: 999,
    cameraPreset: 'portrait-isometric-9x16',
    scoring: {
      chargeToDistanceRatio: 0.004,
      maxChargeMs: 900,
      hitBonus: 20,
      perfectBonus: 60,
    },
    platforms: [
      platform(0, 0, 'start'),
      platform(0.8, 1.2, 'normal'),
      platform(-0.2, 2.4, 'target'),
    ],
  };
  const run = {
    runId: 'run-1',
    profileId: 'profile-1',
    ownerUserId: 'user-1',
    status: 'playing',
    currentPlatformIndex: 1,
    successfulJumpCount: 1,
    durationMs: 0,
    score: 1,
    combo: 0,
    path,
    lastJump: {
      chargeMs: 300,
      jumpDistance: 1.0,
      targetPlatformIndex: 1,
      landedX: 0.72,
      landedY: 1.16,
      result: 'hit',
    },
    startedAtMs: 1000,
    finishedAtMs: null,
  } as const;
  const visible = buildJumpHopVisiblePlatforms(path, 1, []);
  const character = getJumpHopCharacterVisualPosition(run, visible, {
    width: 320,
    height: 568,
  });
  const currentCenter = visible[0]!;

  expect(character?.screenX).not.toBeCloseTo(currentCenter.screenX, 1);
  expect(character?.screenY).not.toBeCloseTo(currentCenter.screenY, 1);
  expect(character?.screenX).toBeLessThan(currentCenter.screenX);
  expect(character?.screenY).toBeGreaterThan(currentCenter.screenY);
});

test('跳一跳运行态公开反馈不再展示旧 perfect 和通关语义', () => {
  expect(getJumpHopStatusLabel('cleared')).toBe('结束');
  expect(
    getJumpHopJumpFeedbackLabel({
      runId: 'run-1',
      profileId: 'profile-1',
      ownerUserId: 'user-1',
      status: 'playing',
      currentPlatformIndex: 1,
      successfulJumpCount: 1,
      durationMs: 0,
      score: 1,
      combo: 0,
      path: {
        seed: 'forest-tea',
        difficulty: 'standard',
        finishIndex: 999,
        cameraPreset: 'portrait-isometric-9x16',
        scoring: {
          chargeToDistanceRatio: 0.004,
          maxChargeMs: 900,
          hitBonus: 20,
          perfectBonus: 60,
        },
        platforms: [platform(0, 0, 'start'), platform(1.2, 1.8, 'normal')],
      },
      lastJump: {
        chargeMs: 300,
        jumpDistance: 1.2,
        targetPlatformIndex: 1,
        landedX: 1.2,
        landedY: 1.8,
        result: 'perfect',
      },
      startedAtMs: 1000,
      finishedAtMs: null,
    }),
  ).toBe('落地');
});

function platform(x: number, y: number, tileType: 'start' | 'normal' | 'target') {
  return {
    platformId: `platform-${x}-${y}`,
    tileType,
    x,
    y,
    width: 1,
    height: 1,
    landingRadius: 0.5,
    perfectRadius: 0.2,
    scoreValue: 1,
  };
}