// https://github.com/babel/babel/blob/v7.26.2/packages/babel-compat-data/scripts/data/plugin-features.js
// https://github.com/evanw/esbuild/blob/v0.24.0/compat-table/src/index.ts

const f = (es) => (item) => {
  item.es = es;
  return item;
};

const es5 = [
  {
    name: "MemberExpressionLiterals",
    es: "ES5",
    babel: "transform-member-expression-literals",
    features: ["Object/array literal extensions / Reserved words as property names"],
  },
  {
    name: "PropertyLiterals",
    es: "ES5",
    babel: "transform-property-literals",
    features: ["Object/array literal extensions / Reserved words as property names"],
  },
  {
    name: "ReservedWords",
    es: "ES5",
    babel: "transform-reserved-words",
    features: ["Miscellaneous / Unreserved words"],
  },
].map(f("ES5"));

const es2015 = [
  {
    name: "Parameters",
    babel: "transform-parameters",
    features: [
      "default function parameters",
      "rest parameters",
      "destructuring, parameters / aliased defaults, arrow function",
      "destructuring, parameters / shorthand defaults, arrow function",
      "destructuring, parameters / duplicate identifier",
    ],
  },
  {
    name: "TemplateLiterals",
    babel: "transform-template-literals",
    features: ["template literals"],
  },
  {
    name: "Literals",
    babel: "transform-literals",
    features: ["Unicode code point escapes"],
  },
  {
    name: "FunctionName",
    babel: "transform-function-name",
    features: ['function "name" property'],
  },
  {
    name: "ArrowFunctions",
    babel: "transform-arrow-functions",
    features: [
      "arrow functions / 0 parameters",
      "arrow functions / 1 parameter, no brackets",
      "arrow functions / multiple parameters",
      'arrow functions / lexical "this" binding',
      'arrow functions / "this" unchanged by call or apply',
      "arrow functions / can't be bound, can be curried",
      'arrow functions / lexical "arguments" binding',
      "arrow functions / no line break between params and =>",
      "arrow functions / correct precedence",
      'arrow functions / no "prototype" property',
    ],
  },
  {
    name: "BlockScopedFunctions",
    babel: "transform-block-scoped-functions",
    features: ["block-level function declaration"],
  },
  {
    name: "Classes",
    babel: "transform-classes",
    features: [
      "class",
      "super",
      'arrow functions / lexical "super" binding in constructors',
      'arrow functions / lexical "super" binding in methods',
    ],
  },
  {
    name: "ObjectSuper",
    babel: "transform-object-super",
    features: ["super"],
  },
  {
    name: "ShorthandProperties",
    babel: "transform-shorthand-properties",
    features: ["object literal extensions / shorthand properties"],
  },
  {
    name: "DuplicateKeys",
    babel: "transform-duplicate-keys",
    features: ["miscellaneous / duplicate property names in strict mode"],
  },
  {
    name: "ComputedProperties",
    babel: "transform-computed-properties",
    features: ["object literal extensions / computed properties"],
  },
  {
    name: "ForOf",
    babel: "transform-for-of",
    features: ["for..of loops"],
  },
  {
    name: "StickyRegex",
    babel: "transform-sticky-regex",
    features: [
      'RegExp "y" and "u" flags / "y" flag, lastIndex',
      'RegExp "y" and "u" flags / "y" flag',
    ],
  },
  {
    name: "UnicodeEscapes",
    babel: "transform-unicode-escapes",
    features: ["Unicode code point escapes"],
  },
  {
    name: "UnicodeRegex",
    babel: "transform-unicode-regex",
    features: [
      'RegExp "y" and "u" flags / "u" flag, case folding',
      'RegExp "y" and "u" flags / "u" flag, Unicode code point escapes',
      'RegExp "y" and "u" flags / "u" flag, non-BMP Unicode characters',
      'RegExp "y" and "u" flags / "u" flag',
    ],
  },
  {
    name: "Spread",
    babel: "transform-spread",
    features: ["spread syntax for iterable objects", "class", "super"],
  },
  {
    name: "Destructuring",
    babel: "transform-destructuring",
    features: ["destructuring, assignment", "destructuring, declarations"],
  },
  {
    name: "BlockScoping",
    babel: "transform-block-scoping",
    features: ["const", "let", "generators"],
  },
  {
    name: "TypeofSymbol",
    babel: "transform-typeof-symbol",
    features: ["Symbol / typeof support"],
  },
  {
    name: "NewTarget",
    babel: "transform-new-target",
    features: ["new.target", 'arrow functions / lexical "new.target" binding'],
  },
  {
    name: "Regenerator",
    babel: "transform-regenerator",
    features: ["generators"],
  },
].map(f("ES2015"));

const es2016 = [
  {
    name: "ExponentiationOperator",
    babel: "transform-exponentiation-operator",
    features: ["exponentiation (**) operator"],
  },
].map(f("ES2016"));

const es2017 = [
  {
    name: "AsyncToGenerator",
    babel: "transform-async-to-generator",
    features: ["async functions"],
  },
].map(f("ES2017"));

const es2018 = [
  {
    name: "AsyncGeneratorFunctions",
    babel: "transform-async-generator-functions",
    features: ["Asynchronous Iterators"],
  },
  {
    name: "ObjectRestSpread",
    babel: "transform-object-rest-spread",
    features: ["object rest/spread properties"],
  },
  {
    name: "DotallRegex",
    babel: "transform-dotall-regex",
    features: ["s (dotAll) flag for regular expressions"],
  },
  {
    name: "UnicodePropertyRegex",
    babel: "transform-unicode-property-regex",
    features: ["RegExp Unicode Property Escapes / basic"],
  },
  {
    name: "NamedCapturingGroupsRegex",
    babel: "transform-named-capturing-groups-regex",
    features: ["RegExp named capture groups"],
  },
  {
    name: "LookbehindRegex",
    babel: null,
    features: ["RegExp Lookbehind Assertions"],
  },
].map(f("ES2018"));

const es2019 = [
  {
    name: "JsonStrings",
    babel: "transform-json-strings",
    features: ["JSON superset"],
  },
  {
    name: "OptionalCatchBinding",
    babel: "transform-optional-catch-binding",
    features: ["optional catch binding"],
  },
].map(f("ES2019"));

const es2020 = [
  {
    name: "NullishCoalescingOperator",
    babel: "transform-nullish-coalescing-operator",
    features: ["nullish coalescing operator (??)"],
  },
  {
    name: "OptionalChaining",
    babel: "transform-optional-chaining",
    features: ["optional chaining operator (?.)"],
  },
  {
    name: "BigInt",
    babel: null,
    features: ["BigInt / basic functionality"],
  },
].map(f("ES2020"));

const es2021 = [
  {
    name: "NumericSeparator",
    babel: "transform-numeric-separator",
    features: ["numeric separators"],
  },
  {
    name: "LogicalAssignmentOperators",
    babel: "transform-logical-assignment-operators",
    features: ["Logical Assignment"],
  },
].map(f("ES2021"));

const es2022 = [
  {
    name: "ClassStaticBlock",
    babel: "transform-class-static-block",
    features: ["Class static initialization blocks"],
  },
  {
    name: "PrivatePropertyInObject",
    babel: "transform-private-property-in-object",
    features: ["Ergonomic brand checks for private fields"],
  },
  {
    name: "ClassProperties",
    babel: "transform-class-properties",
    features: [
      "static class fields",
      "instance class fields / public instance class fields",
      "instance class fields / private instance class fields basic support",
      "instance class fields / computed instance class fields",
      "instance class fields / resolving identifier in parent scope",
    ],
  },
  {
    name: "PrivateMethods",
    babel: "transform-private-methods",
    features: ["private class methods"],
  },
  {
    name: "MatchIndicesRegex",
    babel: null,
    features: [
      "RegExp Match Indices (`hasIndices` / `d` flag) / constructor supports it",
      // ignore "shows up in flags"
    ],
  },
].map(f("ES2022"));

const es2024 = [
  {
    name: "UnicodeSetsRegex",
    babel: "transform-unicode-sets-regex",
    features: [
      "RegExp `v` flag / set notations",
      "RegExp `v` flag / properties of Strings",
      "RegExp `v` flag / constructor supports it",
      "RegExp `v` flag / shows up in flags",
    ],
  },
].map(f("ES2024"));

const es2025 = [
  {
    name: "DuplicateNamedCapturingGroupsRegex",
    babel: "transform-duplicate-named-capturing-groups-regex",
    features: ["Duplicate named capturing groups"],
  },
  {
    name: "RegexpModifiers",
    babel: "transform-regexp-modifiers",
    features: ["RegExp Pattern Modifiers"],
  },
].map(f("ES2025"));

const es2026 = [
  {
    name: "ExplicitResourceManagement",
    babel: "transform-explicit-resource-management",
    features: ["Explicit Resource Management"],
  },
].map(f("ES2026"));

module.exports = [
  ...es5,
  ...es2015,
  ...es2016,
  ...es2017,
  ...es2018,
  ...es2019,
  ...es2020,
  ...es2021,
  ...es2022,
  ...es2024,
  ...es2025,
  ...es2026,
];
