export const description = `Validation tests for literals`;

import { makeTestGroup } from '../../../../common/framework/test_group.js';
import { ShaderValidationTest } from '../shader_validation_test.js';

export const g = makeTestGroup(ShaderValidationTest);

g.test('bools')
  .desc(`Test that valid bools are accepted.`)
  .params(u => u.combine('val', ['true', 'false']).beginSubcases())
  .fn(t => {
    const code = `var test = ${t.params.val};`;
    t.expectCompileResult(true, t.wrapInEntryPoint(code));
  });

const kAbstractIntNonNegative = new Set([
  '0x123', // hex number
  '123', // signed number, no suffix
  '0', // zero
  '0x3f', // hex with 'f' as last character
  '2147483647', // max signed int
]);

const kAbstractIntNegative = new Set([
  '-0x123', // hex number
  '-123', // signed number, no suffix
  '-0x3f', // hex with 'f' as last character
  '-2147483647', // nagative of max signed int
  '-2147483648', // min signed int
]);

const kI32 = new Set([
  '94i', // signed number
  '2147483647i', // max signed int
  '-2147483647i', // min parsable signed int
  'i32(-2147483648)', // min signed int
]);

const kU32 = new Set([
  '42u', // unsigned number
  '0u', // min unsigned int
  '4294967295u', // max unsigned int
]);

{
  const kValidIntegers = new Set([
    ...kAbstractIntNonNegative,
    ...kAbstractIntNegative,
    ...kI32,
    ...kU32,
  ]);
  const kInvalidIntegers = new Set([
    '0123', // Integer does not start with zero
    '2147483648i', // max signed int + 1
    '-2147483649i', // min signed int - 1
    '4294967295', // a untyped lhs will be i32, so this is too big
    '4294967295i', // max unsigned int with i suffix
    '4294967296u', // max unsigned int + 1
    '-1u', // negative unsigned
  ]);
  g.test('abstract_int')
    .desc(`Test that valid integers are accepted, and invalid integers are rejected.`)
    .params(u =>
      u.combine('val', new Set([...kValidIntegers, ...kInvalidIntegers])).beginSubcases()
    )
    .fn(t => {
      const code = `var test = ${t.params.val};`;
      t.expectCompileResult(kValidIntegers.has(t.params.val), t.wrapInEntryPoint(code));
    });
}

{
  const kValidI32 = new Set([...kAbstractIntNonNegative, ...kAbstractIntNegative, ...kI32]);
  const kInvalidI32 = new Set([
    ...kU32,
    '2147483648', // max signed int + 1
    '2147483648i', // max signed int + 1
    '-2147483649', // min signed int - 1
    '-2147483649i', // min signed int - 1
    '1.0', // no conversion from float
    '1.0f', // no conversion from float
    '1.0h', // no conversion from float
  ]);
  g.test('i32')
    .desc(`Test that valid signed integers are accepted, and invalid signed integers are rejected.`)
    .params(u => u.combine('val', new Set([...kValidI32, ...kInvalidI32])).beginSubcases())
    .fn(t => {
      const { val } = t.params;
      const code = `var test: i32 = ${val};`;
      const extensionList = val.includes('h') ? ['f16'] : [];
      t.expectCompileResult(kValidI32.has(val), t.wrapInEntryPoint(code, extensionList));
    });
}

{
  const kValidU32 = new Set([
    ...kAbstractIntNonNegative,
    ...kU32,
    '4294967295', // max unsigned
  ]);
  const kInvalidU32 = new Set([
    ...kAbstractIntNegative,
    ...kI32,
    '4294967296', // max unsigned int + 1
    '4294967296u', // min unsigned int + 1
    '-1', // min unsigned int - 1
    '1.0', // no conversion from float
    '1.0f', // no conversion from float
    '1.0h', // no conversion from float
  ]);
  g.test('u32')
    .desc(
      `Test that valid unsigned integers are accepted, and invalid unsigned integers are rejected.`
    )
    .params(u => u.combine('val', new Set([...kValidU32, ...kInvalidU32])).beginSubcases())
    .fn(t => {
      const { val } = t.params;
      const code = `var test: u32 = ${val};`;
      const extensionList = val.includes('h') ? ['f16'] : [];
      t.expectCompileResult(kValidU32.has(val), t.wrapInEntryPoint(code, extensionList));
    });
}

const kF32 = new Set([
  '0f', // Zero float
  '0.0f', // Zero float
  '12.223f', // float value
  '12.f', // .f
  '.12f', // No leading number with a f
  '2.4e+4f', // Positive exponent with f suffix
  '2.4e-2f', // Negative exponent with f suffix
  '2.e+4f', // Exponent without decimals
  '1e-4f', // Exponennt without decimal point
  '0x1P+4f', // Hex float no decimal
]);

const kF16 = new Set([
  '0h', // Zero half
  '1h', // Half no decimal
  '.1h', // Half no leading value
  '1.1e2h', // Exponent half no sign
  '1.1E+2h', // Exponent half, plus (uppercase E)
  '2.4e-2h', // Exponent half, negative
  '0xep2h', // Hexfloat half lower case p
  '0xEp-2h', // Hexfloat uppcase hex value
  '0x3p+2h', // Hex float half positive exponent
  '0x3.2p+2h', // Hex float with decimal half
]);

const kAbstractFloat = new Set([
  '0.0', // Zero float without suffix
  '.0', // Zero float without leading value
  '12.', // No decimal points
  '00012.', // Leading zeros allowed
  '.12', // No leading digits
  '1.2e2', // Exponent without sign (lowercase e)
  '1.2E2', // Exponent without sign (uppercase e)
  '1.2e+2', // positive exponent
  '2.4e-2', // Negative exponent
  '.1e-2', // Exponent without leading number
  '0x.3', // Hex float, lowercase X
  '0X.3', // Hex float, uppercase X
  '0xa.fp+2', // Hex float, lowercase p
  '0xa.fP+2', // Hex float, uppercase p
  '0xE.fp+2', // Uppercase E (as hex, but matches non hex exponent char)
  '0X1.fp-4', // Hex float negative exponent
]);

{
  const kValidFloats = new Set([...kF32, ...kF16, ...kAbstractFloat]);
  const kInvalidFloats = new Set([
    '.f', // Must have a number
    '.e-2', // Exponent without leading values
    '1.e&2f', // Exponent invalid sign
    '1.ef', // Exponent without value
    '1.e+f', // Exponent sign no value
    '0x.p2', // Hex float no value
    '0x1p', // Hex float missing exponent
    '0x1p^', // Hex float invalid exponent
    '1.0e+999999999999f', // Too big
    '0x1.0p+999999999999f', // Too big hex
    '0x1.00000001pf0', // Mantissa too big
  ]);
  const kInvalidF16s = new Set([
    '1.1eh', // Missing exponent value
    '1.1e!2h', // Invalid exponent sign
    '1.1e+h', // Missing exponent with sign
    '1.0e+999999h', // Too large
    '0x1.0p+999999h', // Too large hex
    '0xf.h', // Having suffix "h" without "p" or "P"
    '0x3h', // Having suffix "h" without "p" or "P"
  ]);

  g.test('abstract_float')
    .desc(`Test that valid floats are accepted, and invalid floats are rejected`)
    .params(u =>
      u
        .combine('val', new Set([...kValidFloats, ...kInvalidFloats, ...kInvalidF16s]))
        .beginSubcases()
    )
    .fn(t => {
      const code = `var test = ${t.params.val};`;
      const extensionList = kF16.has(t.params.val) || kInvalidF16s.has(t.params.val) ? ['f16'] : [];
      t.expectCompileResult(
        kValidFloats.has(t.params.val),
        t.wrapInEntryPoint(code, extensionList)
      );
    });
}

{
  const kValidF32 = new Set([
    ...kF32,
    ...kAbstractFloat,
    '1', // AbstractInt
    '-1', // AbstractInt
  ]);
  const kInvalidF32 = new Set([
    ...kF16, // no conversion
    '1u', // unsigned
    '1i', // signed
    '1h', // half float
    '.f', // Must have a number
    '.e-2', // Exponent without leading values
    '1.e&2f', // Exponent invalid sign
    '1.ef', // Exponent without value
    '1.e+f', // Exponent sign no value
    '0x.p2', // Hex float no value
    '0x1p', // Hex float missing exponent
    '0x1p^', // Hex float invalid exponent
    '1.0e+999999999999f', // Too big
    '0x1.0p+999999999999f', // Too big hex
    '0x1.00000001pf0', // Mantissa too big
  ]);

  g.test('f32')
    .desc(`Test that valid floats are accepted, and invalid floats are rejected`)
    .params(u => u.combine('val', new Set([...kValidF32, ...kInvalidF32])).beginSubcases())
    .fn(t => {
      const { val } = t.params;
      const code = `var test: f32 = ${val};`;
      const extensionList = kF16.has(val) ? ['f16'] : [];
      t.expectCompileResult(kValidF32.has(val), t.wrapInEntryPoint(code, extensionList));
    });
}

{
  const kValidF16 = new Set([
    ...kF16,
    ...kAbstractFloat,
    '1', // AbstractInt
    '-1', // AbstractInt
  ]);
  const kInvalidF16 = new Set([
    ...kF32,
    '1i', // signed int
    '1u', // unsigned int
    '1f', // no conversion from f32 to f16
    '1.1eh', // Missing exponent value
    '1.1e!2h', // Invalid exponent sign
    '1.1e+h', // Missing exponent with sign
    '1.0e+999999h', // Too large
    '0x1.0p+999999h', // Too large hex
  ]);

  g.test('f16')
    .desc(
      `
Test that valid half floats are accepted, and invalid half floats are rejected
`
    )
    .params(u => u.combine('val', new Set([...kValidF16, ...kInvalidF16])).beginSubcases())
    .fn(t => {
      const { val } = t.params;
      const code = `var test: f16 = ${val};`;
      const extensionList = ['f16'];
      t.expectCompileResult(kValidF16.has(val), t.wrapInEntryPoint(code, extensionList));
    });
}