import test from 'node:test';
import assert from 'node:assert/strict';
import { computeRow } from '../src/pages/PricingCalculator/calc.js';
import {
  applyDropshipDefaultsToRows,
  createDropshipRows,
  DROPSHIP_FIXED_RATES,
  getDropshipDimensions,
  mergeDropshipSelectionPricingRows,
  parseAlibaba1688ProductId,
} from '../src/pages/PricingCalculator/dropship.js';

test('parses raw 1688 IDs and product detail links, but rejects store links', () => {
  assert.deepEqual(parseAlibaba1688ProductId('1073252781818'), {
    productId: '1073252781818',
    error: '',
  });
  assert.equal(
    parseAlibaba1688ProductId('https://detail.1688.com/offer/1073252781818.html?spm=test').productId,
    '1073252781818'
  );
  assert.equal(
    parseAlibaba1688ProductId('https://m.1688.com/offer/1009799442964.html').productId,
    '1009799442964'
  );
  assert.equal(parseAlibaba1688ProductId('https://example.1688.com/page/index.html').productId, '');
  assert.match(
    parseAlibaba1688ProductId('https://example.1688.com/page/index.html').error,
    /商品详情链接/
  );
});

test('adapts every 1688 specification group and applies the independent rates', () => {
  const detail = {
    productId: '1073252781818',
    product: {
      productId: '1073252781818',
      mainImage: 'https://img.example.com/main.jpg',
      skuDimensions: [
        { name: '颜色', values: ['原木色'] },
        { name: '尺寸', values: ['60cm'] },
      ],
      skus: [{
        index: 1,
        name: '原木色 / 60cm',
        specs: [
          { name: '颜色', value: '原木色' },
          { name: '尺寸', value: '60cm' },
        ],
        price: 180,
        freight: 40,
        stock: null,
        available: true,
      }],
    },
  };

  const rows = createDropshipRows(detail);
  assert.equal(rows.length, 1);
  assert.equal(rows[0].skuCode, '1');
  assert.deepEqual(rows[0].specs, [
    { name: '颜色', value: '原木色' },
    { name: '尺寸', value: '60cm' },
  ]);
  assert.equal(rows[0].specsText, '颜色：原木色 / 尺寸：60cm');
  assert.equal(rows[0].cost, 180);
  assert.equal(rows[0].shipping, 40);
  assert.equal(rows[0].price, 400);
  assert.equal(rows[0].targetMargin, 0.12);
  Object.entries(DROPSHIP_FIXED_RATES).forEach(([key, value]) => {
    assert.equal(rows[0][key], value);
  });
  assert.deepEqual(getDropshipDimensions(detail, rows), ['颜色', '尺寸']);

  const computed = computeRow(rows[0]);
  assert.equal(Number(computed.profitAmount.toFixed(2)), 48);

  const listingRows = createDropshipRows(detail, null, { useSourceSkuCode: true });
  assert.equal(listingRows[0].skuCode, '1073252781818-SKU-1');
});

test('changing 1688 defaults only updates rows that still use the previous default', () => {
  const rows = [
    { id: 'default', coupon: 20, activityDiscount: 0.6, installFee: 0, targetMargin: 0.12 },
    { id: 'custom', coupon: 10, activityDiscount: 0.6, installFee: 0, targetMargin: 0.2 },
  ];
  const updated = applyDropshipDefaultsToRows(
    rows,
    { coupon: 20, activityDiscount: 0.6, installFee: 0, targetMargin: 0.12 },
    { coupon: 25, activityDiscount: 0.65, installFee: 5, targetMargin: 0.14 }
  );

  assert.deepEqual(updated[0], {
    id: 'default', coupon: 25, activityDiscount: 0.65, installFee: 5, targetMargin: 0.14,
  });
  assert.deepEqual(updated[1], {
    id: 'custom', coupon: 10, activityDiscount: 0.65, installFee: 5, targetMargin: 0.2,
  });
});

test('merges saved listing prices by the real 1688 SKU code', () => {
  const sourceRows = [
    { id: 'a', skuCode: 'SKU-A', cost: 60, price: 100 },
    { id: 'b', skuCode: 'SKU-B', cost: 80, price: 200 },
  ];
  const merged = mergeDropshipSelectionPricingRows(sourceRows, [
    { skuCode: 'sku-b', cost: 168, finalPrice: 288, selectedSkuName: 'B款' },
  ]);

  assert.equal(merged[0].price, 100);
  assert.equal(merged[0].cost, 60);
  assert.equal(merged[0].skuCode, 'SKU-A');
  assert.equal(merged[1].price, 288);
  assert.equal(merged[1].cost, 168);
  assert.equal(merged[1].selectedSkuName, 'B款');
});

test('does not fall back to row order when listing SKU codes do not match', () => {
  const sourceRows = [
    { id: 'a', skuCode: 'SOURCE-A', price: 100 },
    { id: 'b', skuCode: 'SOURCE-B', price: 200 },
  ];
  const merged = mergeDropshipSelectionPricingRows(sourceRows, [
    { skuCode: 'TASK-A', finalPrice: 188 },
    { skuCode: 'TASK-B', finalPrice: 288 },
  ]);

  assert.deepEqual(merged.map((row) => row.skuCode), ['SOURCE-A', 'SOURCE-B']);
  assert.deepEqual(merged.map((row) => row.price), [100, 200]);
});