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const builtin = 'select';
export const description = `
Validation tests for the ${builtin}() builtin.
`;

import { makeTestGroup } from '../../../../../../common/framework/test_group.js';
import { keysOf, objectsToRecord } from '../../../../../../common/util/data_tables.js';
import {
  Type,
  concreteTypeOf,
  isConvertible,
  kAllScalarsAndVectors,
} from '../../../../../util/conversion.js';
import { ShaderValidationTest } from '../../../shader_validation_test.js';

import { validateConstOrOverrideBuiltinEval } from './const_override_validation.js';

export const g = makeTestGroup(ShaderValidationTest);

const kArgumentTypes = objectsToRecord(kAllScalarsAndVectors);

g.test('argument_types_1_and_2')
  .desc(
    `
Validates that scalar and vector arguments are not rejected by ${builtin}() for args 1 and 2
`
  )
  .params(u => u.combine('type1', keysOf(kArgumentTypes)).combine('type2', keysOf(kArgumentTypes)))
  .fn(t => {
    const type1 = kArgumentTypes[t.params.type1];
    const type2 = kArgumentTypes[t.params.type2];
    // First and second arg must be the same or one convertible to the other.
    // Note that we specify a concrete return type even if both args are abstract.
    const returnType = isConvertible(type1, type2)
      ? concreteTypeOf(type2)
      : isConvertible(type2, type1)
      ? concreteTypeOf(type1)
      : undefined;
    validateConstOrOverrideBuiltinEval(
      t,
      builtin,
      /* expectedResult */ returnType !== undefined,
      [type1.create(0), type2.create(0), Type.bool.create(0)],
      'constant',
      returnType
    );
  });

g.test('argument_types_3')
  .desc(
    `
Validates that third argument must be bool for ${builtin}()
`
  )
  .params(u => u.combine('type', keysOf(kArgumentTypes)))
  .fn(t => {
    const type = kArgumentTypes[t.params.type];
    validateConstOrOverrideBuiltinEval(
      t,
      builtin,
      /* expectedResult */ type === Type.bool,
      [Type.i32.create(0), Type.i32.create(0), type.create(0)],
      'constant',
      /*return_type*/ Type.i32
    );
  });

const kTests = {
  valid: {
    src: `_ = ${builtin}(1, 2, true);`,
    pass: true,
  },
  alias: {
    src: `_ = ${builtin}(i32_alias(1), i32_alias(2), bool_alias(true));`,
    pass: true,
  },
  bool: {
    src: `_ = ${builtin}(false, false, true);`,
    pass: true,
  },
  i32: {
    src: `_ = ${builtin}(1i, 1i, true);`,
    pass: true,
  },
  u32: {
    src: `_ = ${builtin}(1u, 1u, true);`,
    pass: true,
  },
  f32: {
    src: `_ = ${builtin}(1.0f, 1.0f, true);`,
    pass: true,
  },
  f16: {
    src: `_ = ${builtin}(1.0h, 1.0h, true);`,
    pass: true,
  },
  mixed_aint_afloat: {
    src: `_ = ${builtin}(1, 1.0, true);`,
    pass: true,
  },
  mixed_i32_u32: {
    src: `_ = ${builtin}(1i, 1u, true);`,
    pass: false,
  },
  vec_bool: {
    src: `_ = ${builtin}(vec2<bool>(false, true), vec2<bool>(false, true), true);`,
    pass: true,
  },
  vec2_bool_implicit: {
    src: `_ = ${builtin}(vec2(false, true), vec2(false, true), true);`,
    pass: true,
  },
  vec3_bool_implicit: {
    src: `_ = ${builtin}(vec3(false), vec3(true), true);`,
    pass: true,
  },
  vec_i32: {
    src: `_ = ${builtin}(vec2<i32>(1, 1), vec2<i32>(1, 1), true);`,
    pass: true,
  },
  vec_u32: {
    src: `_ = ${builtin}(vec2<u32>(1, 1), vec2<u32>(1, 1), true);`,
    pass: true,
  },
  vec_f32: {
    src: `_ = ${builtin}(vec2<f32>(1, 1), vec2<f32>(1, 1), true);`,
    pass: true,
  },
  vec_f16: {
    src: `_ = ${builtin}(vec2<f16>(1, 1), vec2<f16>(1, 1), true);`,
    pass: true,
  },
  matrix: {
    src: `_ = ${builtin}(mat2x2(1, 1, 1, 1), mat2x2(1, 1, 1, 1), true);`,
    pass: false,
  },
  atomic: {
    src: ` _ = ${builtin}(a, a, true);`,
    pass: false,
  },
  array: {
    src: `var a: array<bool, 5>;
            _ = ${builtin}(a, a, true);`,
    pass: false,
  },
  array_runtime: {
    src: `_ = ${builtin}(k.arry, k.arry, true);`,
    pass: false,
  },
  struct: {
    src: `var a: A;
            _ = ${builtin}(a, a, true);`,
    pass: false,
  },
  enumerant: {
    src: `_ = ${builtin}(read_write, read_write, true);`,
    pass: false,
  },
  ptr: {
    src: `var<function> a = true;
            let p: ptr<function, bool> = &a;
            _ = ${builtin}(p, p, true);`,
    pass: false,
  },
  ptr_deref: {
    src: `var<function> a = true;
            let p: ptr<function, bool> = &a;
            _ = ${builtin}(*p, *p, true);`,
    pass: true,
  },
  sampler: {
    src: `_ = ${builtin}(s, s, true);`,
    pass: false,
  },
  texture: {
    src: `_ = ${builtin}(t, t, true);`,
    pass: false,
  },
  no_args: {
    src: `_ = ${builtin}();`,
    pass: false,
  },
  too_few_args: {
    src: `_ = ${builtin}(1, true);`,
    pass: false,
  },
  too_many_args: {
    src: `_ = ${builtin}(1, 1, 1, true);`,
    pass: false,
  },
};

g.test('must_use')
  .desc(`Result of ${builtin} must be used`)
  .params(u => u.combine('use', [true, false]))
  .fn(t => {
    const use_it = t.params.use ? '_ = ' : '';
    t.expectCompileResult(t.params.use, `fn f() { ${use_it}${builtin}(1, 2, true); }`);
  });

g.test('arguments')
  .desc(`Test that ${builtin} is validated correctly.`)
  .params(u => u.combine('test', keysOf(kTests)))
  .fn(t => {
    const src = kTests[t.params.test].src;
    const enables = t.params.test.includes('f16') ? 'enable f16;' : '';
    const code = `
  ${enables}
  alias bool_alias = bool;
  alias i32_alias = i32;

  @group(0) @binding(0) var s: sampler;
  @group(0) @binding(1) var t: texture_2d<f32>;

  var<workgroup> a: atomic<u32>;

  struct A {
    i: bool,
  }
  struct B {
    arry: array<u32>,
  }
  @group(0) @binding(3) var<storage> k: B;

  @vertex
  fn main() -> @builtin(position) vec4<f32> {
    ${src}
    return vec4<f32>(.4, .2, .3, .1);
  }`;
    t.expectCompileResult(kTests[t.params.test].pass, code);
  });