/* eslint-env browser, mocha */

describe('core layer: Reshape', function () {
  const assert = chai.assert
  const styles = testGlobals.styles
  const logTime = testGlobals.logTime
  const stringifyCondensed = testGlobals.stringifyCondensed
  const approxEquals = KerasJS.testUtils.approxEquals
  const layers = KerasJS.layers

  before(function () {
    console.log('\n%ccore layer: Reshape', styles.h1)
  })

  it('[core.Reshape.0] should be able to go from shape [6] -> [2, 3]', function () {
    const key = 'core.Reshape.0'
    console.log(`\n%c[${key}] shape [6] -> [2, 3]`, styles.h3)
    let testLayer = new layers.Reshape({ targetShape: [2, 3] })
    let t = new KerasJS.Tensor(TEST_DATA[key].input.data, TEST_DATA[key].input.shape)
    console.log('%cin', styles.h4, stringifyCondensed(t.tensor))
    const startTime = performance.now()
    t = testLayer.call(t)
    const endTime = performance.now()
    console.log('%cout', styles.h4, stringifyCondensed(t.tensor))
    logTime(startTime, endTime)
    const dataExpected = new Float32Array(TEST_DATA[key].expected.data)
    const shapeExpected = TEST_DATA[key].expected.shape
    assert.deepEqual(t.tensor.shape, shapeExpected)
    assert.isTrue(approxEquals(t.tensor, dataExpected))
  })

  it('[core.Reshape.1] should be able to go from shape [3, 2] -> [6]', function () {
    const key = 'core.Reshape.1'
    console.log(`\n%c[${key}] shape [3, 2] -> [6]`, styles.h3)
    let testLayer = new layers.Reshape({ targetShape: [6] })
    let t = new KerasJS.Tensor(TEST_DATA[key].input.data, TEST_DATA[key].input.shape)
    console.log('%cin', styles.h4, stringifyCondensed(t.tensor))
    const startTime = performance.now()
    t = testLayer.call(t)
    const endTime = performance.now()
    console.log('%cout', styles.h4, stringifyCondensed(t.tensor))
    logTime(startTime, endTime)
    const dataExpected = new Float32Array(TEST_DATA[key].expected.data)
    const shapeExpected = TEST_DATA[key].expected.shape
    assert.deepEqual(t.tensor.shape, shapeExpected)
    assert.isTrue(approxEquals(t.tensor, dataExpected))
  })

  it('[core.Reshape.2] should be able to go from shape [3, 2, 2] -> [4, 3]', function () {
    const key = 'core.Reshape.2'
    console.log(`\n%c[${key}] shape [3, 2, 2] -> [4, 3]`, styles.h3)
    let testLayer = new layers.Reshape({ targetShape: [4, 3] })
    let t = new KerasJS.Tensor(TEST_DATA[key].input.data, TEST_DATA[key].input.shape)
    console.log('%cin', styles.h4, stringifyCondensed(t.tensor))
    const startTime = performance.now()
    t = testLayer.call(t)
    const endTime = performance.now()
    console.log('%cout', styles.h4, stringifyCondensed(t.tensor))
    logTime(startTime, endTime)
    const dataExpected = new Float32Array(TEST_DATA[key].expected.data)
    const shapeExpected = TEST_DATA[key].expected.shape
    assert.deepEqual(t.tensor.shape, shapeExpected)
    assert.isTrue(approxEquals(t.tensor, dataExpected))
  })
})