"use strict";

Components.utils.import("resource://gre/modules/Schemas.jsm");
Components.utils.import("resource://gre/modules/BrowserUtils.jsm");
Components.utils.import("resource://gre/modules/ExtensionCommon.jsm");

let {LocalAPIImplementation, SchemaAPIInterface} = ExtensionCommon;

const global = this;

let json = [
  {
    namespace: "testing",

    properties: {
      PROP1: {value: 20},
      prop2: {type: "string"},
      prop3: {
        $ref: "submodule",
      },
      prop4: {
        $ref: "submodule",
        unsupported: true,
      },
    },

    types: [
      {
        id: "type1",
        type: "string",
        "enum": ["value1", "value2", "value3"],
      },

      {
        id: "type2",
        type: "object",
        properties: {
          prop1: {type: "integer"},
          prop2: {type: "array", items: {"$ref": "type1"}},
        },
      },

      {
        id: "basetype1",
        type: "object",
        properties: {
          prop1: {type: "string"},
        },
      },

      {
        id: "basetype2",
        choices: [
          {type: "integer"},
        ],
      },

      {
        $extend: "basetype1",
        properties: {
          prop2: {type: "string"},
        },
      },

      {
        $extend: "basetype2",
        choices: [
          {type: "string"},
        ],
      },

      {
        id: "basetype3",
        type: "object",
        properties: {
          baseprop: {type: "string"},
        },
      },

      {
        id: "derivedtype1",
        type: "object",
        $import: "basetype3",
        properties: {
          derivedprop: {type: "string"},
        },
      },

      {
        id: "derivedtype2",
        type: "object",
        $import: "basetype3",
        properties: {
          derivedprop: {type: "integer"},
        },
      },

      {
        id: "submodule",
        type: "object",
        functions: [
          {
            name: "sub_foo",
            type: "function",
            parameters: [],
            returns: {type: "integer"},
          },
        ],
      },
    ],

    functions: [
      {
        name: "foo",
        type: "function",
        parameters: [
          {name: "arg1", type: "integer", optional: true, default: 99},
          {name: "arg2", type: "boolean", optional: true},
        ],
      },

      {
        name: "bar",
        type: "function",
        parameters: [
          {name: "arg1", type: "integer", optional: true},
          {name: "arg2", type: "boolean"},
        ],
      },

      {
        name: "baz",
        type: "function",
        parameters: [
          {name: "arg1", type: "object", properties: {
            prop1: {type: "string"},
            prop2: {type: "integer", optional: true},
            prop3: {type: "integer", unsupported: true},
          }},
        ],
      },

      {
        name: "qux",
        type: "function",
        parameters: [
          {name: "arg1", "$ref": "type1"},
        ],
      },

      {
        name: "quack",
        type: "function",
        parameters: [
          {name: "arg1", "$ref": "type2"},
        ],
      },

      {
        name: "quora",
        type: "function",
        parameters: [
          {name: "arg1", type: "function"},
        ],
      },

      {
        name: "quileute",
        type: "function",
        parameters: [
          {name: "arg1", type: "integer", optional: true},
          {name: "arg2", type: "integer"},
        ],
      },

      {
        name: "queets",
        type: "function",
        unsupported: true,
        parameters: [],
      },

      {
        name: "quintuplets",
        type: "function",
        parameters: [
          {name: "obj", type: "object", properties: [], additionalProperties: {type: "integer"}},
        ],
      },

      {
        name: "quasar",
        type: "function",
        parameters: [
          {name: "abc", type: "object", properties: {
            func: {type: "function", parameters: [
              {name: "x", type: "integer"},
            ]},
          }},
        ],
      },

      {
        name: "quosimodo",
        type: "function",
        parameters: [
          {name: "xyz", type: "object", additionalProperties: {type: "any"}},
        ],
      },

      {
        name: "patternprop",
        type: "function",
        parameters: [
          {
            name: "obj",
            type: "object",
            properties: {"prop1": {type: "string", pattern: "^\\d+$"}},
            patternProperties: {
              "(?i)^prop\\d+$": {type: "string"},
              "^foo\\d+$": {type: "string"},
            },
          },
        ],
      },

      {
        name: "pattern",
        type: "function",
        parameters: [
          {name: "arg", type: "string", pattern: "(?i)^[0-9a-f]+$"},
        ],
      },

      {
        name: "format",
        type: "function",
        parameters: [
          {
            name: "arg",
            type: "object",
            properties: {
              hostname: {type: "string", "format": "hostname", "optional": true},
              url: {type: "string", "format": "url", "optional": true},
              relativeUrl: {type: "string", "format": "relativeUrl", "optional": true},
              strictRelativeUrl: {type: "string", "format": "strictRelativeUrl", "optional": true},
              imageDataOrStrictRelativeUrl: {type: "string", "format": "imageDataOrStrictRelativeUrl", "optional": true},
            },
          },
        ],
      },

      {
        name: "formatDate",
        type: "function",
        parameters: [
          {
            name: "arg",
            type: "object",
            properties: {
              date: {type: "string", format: "date", optional: true},
            },
          },
        ],
      },

      {
        name: "deep",
        type: "function",
        parameters: [
          {
            name: "arg",
            type: "object",
            properties: {
              foo: {
                type: "object",
                properties: {
                  bar: {
                    type: "array",
                    items: {
                      type: "object",
                      properties: {
                        baz: {
                          type: "object",
                          properties: {
                            required: {type: "integer"},
                            optional: {type: "string", optional: true},
                          },
                        },
                      },
                    },
                  },
                },
              },
            },
          },
        ],
      },

      {
        name: "errors",
        type: "function",
        parameters: [
          {
            name: "arg",
            type: "object",
            properties: {
              warn: {
                type: "string",
                pattern: "^\\d+$",
                optional: true,
                onError: "warn",
              },
              ignore: {
                type: "string",
                pattern: "^\\d+$",
                optional: true,
                onError: "ignore",
              },
              default: {
                type: "string",
                pattern: "^\\d+$",
                optional: true,
              },
            },
          },
        ],
      },

      {
        name: "localize",
        type: "function",
        parameters: [
          {
            name: "arg",
            type: "object",
            properties: {
              foo: {type: "string", "preprocess": "localize", "optional": true},
              bar: {type: "string", "optional": true},
              url: {type: "string", "preprocess": "localize", "format": "url", "optional": true},
            },
          },
        ],
      },

      {
        name: "extended1",
        type: "function",
        parameters: [
          {name: "val", $ref: "basetype1"},
        ],
      },

      {
        name: "extended2",
        type: "function",
        parameters: [
          {name: "val", $ref: "basetype2"},
        ],
      },

      {
        name: "callderived1",
        type: "function",
        parameters: [
          {name: "value", $ref: "derivedtype1"},
        ],
      },

      {
        name: "callderived2",
        type: "function",
        parameters: [
          {name: "value", $ref: "derivedtype2"},
        ],
      },
    ],

    events: [
      {
        name: "onFoo",
        type: "function",
      },

      {
        name: "onBar",
        type: "function",
        extraParameters: [{
          name: "filter",
          type: "integer",
          optional: true,
          default: 1,
        }],
      },
    ],
  },
  {
    namespace: "foreign",
    properties: {
      foreignRef: {$ref: "testing.submodule"},
    },
  },
  {
    namespace: "inject",
    properties: {
      PROP1: {value: "should inject"},
    },
  },
  {
    namespace: "do-not-inject",
    properties: {
      PROP1: {value: "should not inject"},
    },
  },
];

let tallied = null;

function tally(kind, ns, name, args) {
  tallied = [kind, ns, name, args];
}

function verify(...args) {
  Assert.equal(JSON.stringify(tallied), JSON.stringify(args));
  tallied = null;
}

let talliedErrors = [];

function checkErrors(errors) {
  Assert.equal(talliedErrors.length, errors.length, "Got expected number of errors");
  for (let [i, error] of errors.entries()) {
    Assert.ok(i in talliedErrors && String(talliedErrors[i]).includes(error),
              `${JSON.stringify(error)} is a substring of error ${JSON.stringify(talliedErrors[i])}`);
  }

  talliedErrors.length = 0;
}

let permissions = new Set();

class TallyingAPIImplementation extends SchemaAPIInterface {
  constructor(namespace, name) {
    super();
    this.namespace = namespace;
    this.name = name;
  }

  callFunction(args) {
    tally("call", this.namespace, this.name, args);
    if (this.name === "sub_foo") {
      return 13;
    }
  }

  callFunctionNoReturn(args) {
    tally("call", this.namespace, this.name, args);
  }

  getProperty() {
    tally("get", this.namespace, this.name);
  }

  setProperty(value) {
    tally("set", this.namespace, this.name, value);
  }

  addListener(listener, args) {
    tally("addListener", this.namespace, this.name, [listener, args]);
  }

  removeListener(listener) {
    tally("removeListener", this.namespace, this.name, [listener]);
  }

  hasListener(listener) {
    tally("hasListener", this.namespace, this.name, [listener]);
  }
}

let wrapper = {
  url: "moz-extension://b66e3509-cdb3-44f6-8eb8-c8b39b3a1d27/",

  cloneScope: global,

  checkLoadURL(url) {
    return !url.startsWith("chrome:");
  },

  preprocessors: {
    localize(value, context) {
      return value.replace(/__MSG_(.*?)__/g, (m0, m1) => `${m1.toUpperCase()}`);
    },
  },

  logError(message) {
    talliedErrors.push(message);
  },

  hasPermission(permission) {
    return permissions.has(permission);
  },

  shouldInject(ns, name) {
    return name != "do-not-inject";
  },

  getImplementation(namespace, name) {
    return new TallyingAPIImplementation(namespace, name);
  },
};

add_task(async function() {
  let url = "data:," + JSON.stringify(json);
  await Schemas.load(url);

  let root = {};
  tallied = null;
  Schemas.inject(root, wrapper);
  Assert.equal(tallied, null);

  Assert.equal(root.testing.PROP1, 20, "simple value property");
  Assert.equal(root.testing.type1.VALUE1, "value1", "enum type");
  Assert.equal(root.testing.type1.VALUE2, "value2", "enum type");

  Assert.equal("inject" in root, true, "namespace 'inject' should be injected");
  Assert.equal(root["do-not-inject"], undefined, "namespace 'do-not-inject' should not be injected");

  root.testing.foo(11, true);
  verify("call", "testing", "foo", [11, true]);

  root.testing.foo(true);
  verify("call", "testing", "foo", [99, true]);

  root.testing.foo(null, true);
  verify("call", "testing", "foo", [99, true]);

  root.testing.foo(undefined, true);
  verify("call", "testing", "foo", [99, true]);

  root.testing.foo(11);
  verify("call", "testing", "foo", [11, null]);

  Assert.throws(() => root.testing.bar(11),
                /Incorrect argument types/,
                "should throw without required arg");

  Assert.throws(() => root.testing.bar(11, true, 10),
                /Incorrect argument types/,
                "should throw with too many arguments");

  root.testing.bar(true);
  verify("call", "testing", "bar", [null, true]);

  root.testing.baz({prop1: "hello", prop2: 22});
  verify("call", "testing", "baz", [{prop1: "hello", prop2: 22}]);

  root.testing.baz({prop1: "hello"});
  verify("call", "testing", "baz", [{prop1: "hello", prop2: null}]);

  root.testing.baz({prop1: "hello", prop2: null});
  verify("call", "testing", "baz", [{prop1: "hello", prop2: null}]);

  Assert.throws(() => root.testing.baz({prop2: 12}),
                /Property "prop1" is required/,
                "should throw without required property");

  Assert.throws(() => root.testing.baz({prop1: "hi", prop3: 12}),
                /Property "prop3" is unsupported by Firefox/,
                "should throw with unsupported property");

  Assert.throws(() => root.testing.baz({prop1: "hi", prop4: 12}),
                /Unexpected property "prop4"/,
                "should throw with unexpected property");

  Assert.throws(() => root.testing.baz({prop1: 12}),
                /Expected string instead of 12/,
                "should throw with wrong type");

  root.testing.qux("value2");
  verify("call", "testing", "qux", ["value2"]);

  Assert.throws(() => root.testing.qux("value4"),
                /Invalid enumeration value "value4"/,
                "should throw for invalid enum value");

  root.testing.quack({prop1: 12, prop2: ["value1", "value3"]});
  verify("call", "testing", "quack", [{prop1: 12, prop2: ["value1", "value3"]}]);

  Assert.throws(() => root.testing.quack({prop1: 12, prop2: ["value1", "value3", "value4"]}),
                /Invalid enumeration value "value4"/,
                "should throw for invalid array type");

  function f() {}
  root.testing.quora(f);
  Assert.equal(JSON.stringify(tallied.slice(0, -1)), JSON.stringify(["call", "testing", "quora"]));
  Assert.equal(tallied[3][0], f);
  tallied = null;

  let g = () => 0;
  root.testing.quora(g);
  Assert.equal(JSON.stringify(tallied.slice(0, -1)), JSON.stringify(["call", "testing", "quora"]));
  Assert.equal(tallied[3][0], g);
  tallied = null;

  root.testing.quileute(10);
  verify("call", "testing", "quileute", [null, 10]);

  Assert.throws(() => root.testing.queets(),
                /queets is not a function/,
                "should throw for unsupported functions");

  root.testing.quintuplets({a: 10, b: 20, c: 30});
  verify("call", "testing", "quintuplets", [{a: 10, b: 20, c: 30}]);

  Assert.throws(() => root.testing.quintuplets({a: 10, b: 20, c: 30, d: "hi"}),
                /Expected integer instead of "hi"/,
                "should throw for wrong additionalProperties type");

  root.testing.quasar({func: f});
  Assert.equal(JSON.stringify(tallied.slice(0, -1)), JSON.stringify(["call", "testing", "quasar"]));
  Assert.equal(tallied[3][0].func, f);
  tallied = null;

  root.testing.quosimodo({a: 10, b: 20, c: 30});
  verify("call", "testing", "quosimodo", [{a: 10, b: 20, c: 30}]);
  tallied = null;

  Assert.throws(() => root.testing.quosimodo(10),
                /Incorrect argument types/,
                "should throw for wrong type");

  root.testing.patternprop({prop1: "12", prop2: "42", Prop3: "43", foo1: "x"});
  verify("call", "testing", "patternprop", [{prop1: "12", prop2: "42", Prop3: "43", foo1: "x"}]);
  tallied = null;

  root.testing.patternprop({prop1: "12"});
  verify("call", "testing", "patternprop", [{prop1: "12"}]);
  tallied = null;

  Assert.throws(() => root.testing.patternprop({prop1: "12", foo1: null}),
                /Expected string instead of null/,
                "should throw for wrong property type");

  Assert.throws(() => root.testing.patternprop({prop1: "xx", prop2: "yy"}),
                /String "xx" must match \/\^\\d\+\$\//,
                "should throw for wrong property type");

  Assert.throws(() => root.testing.patternprop({prop1: "12", prop2: 42}),
                /Expected string instead of 42/,
                "should throw for wrong property type");

  Assert.throws(() => root.testing.patternprop({prop1: "12", prop2: null}),
                /Expected string instead of null/,
                "should throw for wrong property type");

  Assert.throws(() => root.testing.patternprop({prop1: "12", propx: "42"}),
                /Unexpected property "propx"/,
                "should throw for unexpected property");

  Assert.throws(() => root.testing.patternprop({prop1: "12", Foo1: "x"}),
                /Unexpected property "Foo1"/,
                "should throw for unexpected property");

  root.testing.pattern("DEADbeef");
  verify("call", "testing", "pattern", ["DEADbeef"]);
  tallied = null;

  Assert.throws(() => root.testing.pattern("DEADcow"),
                /String "DEADcow" must match \/\^\[0-9a-f\]\+\$\/i/,
                "should throw for non-match");

  root.testing.format({hostname: "foo"});
  verify("call", "testing", "format", [{hostname: "foo",
                                        imageDataOrStrictRelativeUrl: null,
                                        relativeUrl: null,
                                        strictRelativeUrl: null,
                                        url: null}]);
  tallied = null;

  for (let invalid of ["", " ", "http://foo", "foo/bar", "foo.com/", "foo?"]) {
    Assert.throws(() => root.testing.format({hostname: invalid}),
                  /Invalid hostname/,
                  "should throw for invalid hostname");
  }

  root.testing.format({url: "http://foo/bar",
                       relativeUrl: "http://foo/bar"});
  verify("call", "testing", "format", [{hostname: null,
                                        imageDataOrStrictRelativeUrl: null,
                                        relativeUrl: "http://foo/bar",
                                        strictRelativeUrl: null,
                                        url: "http://foo/bar"}]);
  tallied = null;

  root.testing.format({relativeUrl: "foo.html", strictRelativeUrl: "foo.html"});
  verify("call", "testing", "format", [{hostname: null,
                                        imageDataOrStrictRelativeUrl: null,
                                        relativeUrl: `${wrapper.url}foo.html`,
                                        strictRelativeUrl: `${wrapper.url}foo.html`,
                                        url: null}]);
  tallied = null;

  root.testing.format({imageDataOrStrictRelativeUrl: "data:image/png;base64,A"});
  verify("call", "testing", "format", [{hostname: null,
                                        imageDataOrStrictRelativeUrl: "data:image/png;base64,A",
                                        relativeUrl: null,
                                        strictRelativeUrl: null,
                                        url: null}]);
  tallied = null;

  root.testing.format({imageDataOrStrictRelativeUrl: "data:image/jpeg;base64,A"});
  verify("call", "testing", "format", [{hostname: null,
                                        imageDataOrStrictRelativeUrl: "data:image/jpeg;base64,A",
                                        relativeUrl: null,
                                        strictRelativeUrl: null,
                                        url: null}]);
  tallied = null;

  root.testing.format({imageDataOrStrictRelativeUrl: "foo.html"});
  verify("call", "testing", "format", [{hostname: null,
                                        imageDataOrStrictRelativeUrl: `${wrapper.url}foo.html`,
                                        relativeUrl: null,
                                        strictRelativeUrl: null,
                                        url: null}]);

  tallied = null;

  for (let format of ["url", "relativeUrl"]) {
    Assert.throws(() => root.testing.format({[format]: "chrome://foo/content/"}),
                  /Access denied/,
                  "should throw for access denied");
  }

  for (let urlString of ["//foo.html", "http://foo/bar.html"]) {
    Assert.throws(() => root.testing.format({strictRelativeUrl: urlString}),
                  /must be a relative URL/,
                  "should throw for non-relative URL");
  }

  Assert.throws(() => root.testing.format({imageDataOrStrictRelativeUrl: "data:image/svg+xml;utf8,A"}),
                /must be a relative or PNG or JPG data:image URL/,
                "should throw for non-relative or non PNG/JPG data URL");

  const dates = [
    "2016-03-04",
    "2016-03-04T08:00:00Z",
    "2016-03-04T08:00:00.000Z",
    "2016-03-04T08:00:00-08:00",
    "2016-03-04T08:00:00.000-08:00",
    "2016-03-04T08:00:00+08:00",
    "2016-03-04T08:00:00.000+08:00",
    "2016-03-04T08:00:00+0800",
    "2016-03-04T08:00:00-0800",
  ];
  dates.forEach(str => {
    root.testing.formatDate({date: str});
    verify("call", "testing", "formatDate", [{date: str}]);
  });

  // Make sure that a trivial change to a valid date invalidates it.
  dates.forEach(str => {
    Assert.throws(() => root.testing.formatDate({date: "0" + str}),
                  /Invalid date string/,
                  "should throw for invalid iso date string");
    Assert.throws(() => root.testing.formatDate({date: str + "0"}),
                  /Invalid date string/,
                  "should throw for invalid iso date string");
  });

  const badDates = [
    "I do not look anything like a date string",
    "2016-99-99",
    "2016-03-04T25:00:00Z",
  ];
  badDates.forEach(str => {
    Assert.throws(() => root.testing.formatDate({date: str}),
                  /Invalid date string/,
                  "should throw for invalid iso date string");
  });

  root.testing.deep({foo: {bar: [{baz: {required: 12, optional: "42"}}]}});
  verify("call", "testing", "deep", [{foo: {bar: [{baz: {optional: "42", required: 12}}]}}]);
  tallied = null;

  Assert.throws(() => root.testing.deep({foo: {bar: [{baz: {optional: "42"}}]}}),
                /Type error for parameter arg \(Error processing foo\.bar\.0\.baz: Property "required" is required\) for testing\.deep/,
                "should throw with the correct object path");

  Assert.throws(() => root.testing.deep({foo: {bar: [{baz: {optional: 42, required: 12}}]}}),
                /Type error for parameter arg \(Error processing foo\.bar\.0\.baz\.optional: Expected string instead of 42\) for testing\.deep/,
                "should throw with the correct object path");


  talliedErrors.length = 0;

  root.testing.errors({default: "0123", ignore: "0123", warn: "0123"});
  verify("call", "testing", "errors", [{default: "0123", ignore: "0123", warn: "0123"}]);
  checkErrors([]);

  root.testing.errors({default: "0123", ignore: "x123", warn: "0123"});
  verify("call", "testing", "errors", [{default: "0123", ignore: null,  warn: "0123"}]);
  checkErrors([]);

  root.testing.errors({default: "0123", ignore: "0123", warn: "x123"});
  verify("call", "testing", "errors", [{default: "0123", ignore: "0123", warn: null}]);
  checkErrors([
    'String "x123" must match /^\\d+$/',
  ]);


  root.testing.onFoo.addListener(f);
  Assert.equal(JSON.stringify(tallied.slice(0, -1)), JSON.stringify(["addListener", "testing", "onFoo"]));
  Assert.equal(tallied[3][0], f);
  Assert.equal(JSON.stringify(tallied[3][1]), JSON.stringify([]));
  tallied = null;

  root.testing.onFoo.removeListener(f);
  Assert.equal(JSON.stringify(tallied.slice(0, -1)), JSON.stringify(["removeListener", "testing", "onFoo"]));
  Assert.equal(tallied[3][0], f);
  tallied = null;

  root.testing.onFoo.hasListener(f);
  Assert.equal(JSON.stringify(tallied.slice(0, -1)), JSON.stringify(["hasListener", "testing", "onFoo"]));
  Assert.equal(tallied[3][0], f);
  tallied = null;

  Assert.throws(() => root.testing.onFoo.addListener(10),
                /Invalid listener/,
                "addListener with non-function should throw");

  root.testing.onBar.addListener(f, 10);
  Assert.equal(JSON.stringify(tallied.slice(0, -1)), JSON.stringify(["addListener", "testing", "onBar"]));
  Assert.equal(tallied[3][0], f);
  Assert.equal(JSON.stringify(tallied[3][1]), JSON.stringify([10]));
  tallied = null;

  root.testing.onBar.addListener(f);
  Assert.equal(JSON.stringify(tallied.slice(0, -1)), JSON.stringify(["addListener", "testing", "onBar"]));
  Assert.equal(tallied[3][0], f);
  Assert.equal(JSON.stringify(tallied[3][1]), JSON.stringify([1]));
  tallied = null;

  Assert.throws(() => root.testing.onBar.addListener(f, "hi"),
                /Incorrect argument types/,
                "addListener with wrong extra parameter should throw");

  let target = {prop1: 12, prop2: ["value1", "value3"]};
  let proxy = new Proxy(target, {});
  Assert.throws(() => root.testing.quack(proxy),
                /Expected a plain JavaScript object, got a Proxy/,
                "should throw when passing a Proxy");

  if (Symbol.toStringTag) {
    let stringTarget = {prop1: 12, prop2: ["value1", "value3"]};
    stringTarget[Symbol.toStringTag] = () => "[object Object]";
    let stringProxy = new Proxy(stringTarget, {});
    Assert.throws(() => root.testing.quack(stringProxy),
                  /Expected a plain JavaScript object, got a Proxy/,
                  "should throw when passing a Proxy");
  }


  root.testing.localize({foo: "__MSG_foo__", bar: "__MSG_foo__", url: "__MSG_http://example.com/__"});
  verify("call", "testing", "localize", [{bar: "__MSG_foo__", foo: "FOO", url: "http://example.com/"}]);
  tallied = null;


  Assert.throws(() => root.testing.localize({url: "__MSG_/foo/bar__"}),
                /\/FOO\/BAR is not a valid URL\./,
                "should throw for invalid URL");


  root.testing.extended1({prop1: "foo", prop2: "bar"});
  verify("call", "testing", "extended1", [{prop1: "foo", prop2: "bar"}]);
  tallied = null;

  Assert.throws(() => root.testing.extended1({prop1: "foo", prop2: 12}),
                /Expected string instead of 12/,
                "should throw for wrong property type");

  Assert.throws(() => root.testing.extended1({prop1: "foo"}),
                /Property "prop2" is required/,
                "should throw for missing property");

  Assert.throws(() => root.testing.extended1({prop1: "foo", prop2: "bar", prop3: "xxx"}),
                /Unexpected property "prop3"/,
                "should throw for extra property");


  root.testing.extended2("foo");
  verify("call", "testing", "extended2", ["foo"]);
  tallied = null;

  root.testing.extended2(12);
  verify("call", "testing", "extended2", [12]);
  tallied = null;

  Assert.throws(() => root.testing.extended2(true),
                /Incorrect argument types/,
                "should throw for wrong argument type");

  root.testing.prop3.sub_foo();
  verify("call", "testing.prop3", "sub_foo", []);
  tallied = null;

  Assert.throws(() => root.testing.prop4.sub_foo(),
                /root.testing.prop4 is undefined/,
                "should throw for unsupported submodule");

  root.foreign.foreignRef.sub_foo();
  verify("call", "foreign.foreignRef", "sub_foo", []);
  tallied = null;

  root.testing.callderived1({baseprop: "s1", derivedprop: "s2"});
  verify("call", "testing", "callderived1",
         [{baseprop: "s1", derivedprop: "s2"}]);
  tallied = null;

  Assert.throws(() => root.testing.callderived1({baseprop: "s1", derivedprop: 42}),
                /Error processing derivedprop: Expected string/,
                "Two different objects may $import the same base object");
  Assert.throws(() => root.testing.callderived1({baseprop: "s1"}),
                /Property "derivedprop" is required/,
                "Object using $import has its local properites");
  Assert.throws(() => root.testing.callderived1({derivedprop: "s2"}),
                /Property "baseprop" is required/,
                "Object using $import has imported properites");

  root.testing.callderived2({baseprop: "s1", derivedprop: 42});
  verify("call", "testing", "callderived2",
         [{baseprop: "s1", derivedprop: 42}]);
  tallied = null;

  Assert.throws(() => root.testing.callderived2({baseprop: "s1", derivedprop: "s2"}),
                /Error processing derivedprop: Expected integer/,
                "Two different objects may $import the same base object");
  Assert.throws(() => root.testing.callderived2({baseprop: "s1"}),
                /Property "derivedprop" is required/,
                "Object using $import has its local properites");
  Assert.throws(() => root.testing.callderived2({derivedprop: 42}),
                /Property "baseprop" is required/,
                "Object using $import has imported properites");
});

let deprecatedJson = [
  {
    namespace: "deprecated",

    properties: {
      accessor: {
        type: "string",
        writable: true,
        deprecated: "This is not the property you are looking for",
      },
    },

    types: [
      {
        "id": "Type",
        "type": "string",
      },
    ],

    functions: [
      {
        name: "property",
        type: "function",
        parameters: [
          {
            name: "arg",
            type: "object",
            properties: {
              foo: {
                type: "string",
              },
            },
            additionalProperties: {
              type: "any",
              deprecated: "Unknown property",
            },
          },
        ],
      },

      {
        name: "value",
        type: "function",
        parameters: [
          {
            name: "arg",
            choices: [
              {
                type: "integer",
              },
              {
                type: "string",
                deprecated: "Please use an integer, not ${value}",
              },
            ],
          },
        ],
      },

      {
        name: "choices",
        type: "function",
        parameters: [
          {
            name: "arg",
            deprecated: "You have no choices",
            choices: [
              {
                type: "integer",
              },
            ],
          },
        ],
      },

      {
        name: "ref",
        type: "function",
        parameters: [
          {
            name: "arg",
            choices: [
              {
                $ref: "Type",
                deprecated: "Deprecated alias",
              },
            ],
          },
        ],
      },

      {
        name: "method",
        type: "function",
        deprecated: "Do not call this method",
        parameters: [
        ],
      },
    ],

    events: [
      {
        name: "onDeprecated",
        type: "function",
        deprecated: "This event does not work",
      },
    ],
  },
];

add_task(async function testDeprecation() {
  let url = "data:," + JSON.stringify(deprecatedJson);
  await Schemas.load(url);

  let root = {};
  Schemas.inject(root, wrapper);

  talliedErrors.length = 0;


  root.deprecated.property({foo: "bar", xxx: "any", yyy: "property"});
  verify("call", "deprecated", "property", [{foo: "bar", xxx: "any", yyy: "property"}]);
  checkErrors([
    "Error processing xxx: Unknown property",
    "Error processing yyy: Unknown property",
  ]);

  root.deprecated.value(12);
  verify("call", "deprecated", "value", [12]);
  checkErrors([]);

  root.deprecated.value("12");
  verify("call", "deprecated", "value", ["12"]);
  checkErrors(["Please use an integer, not \"12\""]);

  root.deprecated.choices(12);
  verify("call", "deprecated", "choices", [12]);
  checkErrors(["You have no choices"]);

  root.deprecated.ref("12");
  verify("call", "deprecated", "ref", ["12"]);
  checkErrors(["Deprecated alias"]);

  root.deprecated.method();
  verify("call", "deprecated", "method", []);
  checkErrors(["Do not call this method"]);


  void root.deprecated.accessor;
  verify("get", "deprecated", "accessor", null);
  checkErrors(["This is not the property you are looking for"]);

  root.deprecated.accessor = "x";
  verify("set", "deprecated", "accessor", "x");
  checkErrors(["This is not the property you are looking for"]);


  root.deprecated.onDeprecated.addListener(() => {});
  checkErrors(["This event does not work"]);

  root.deprecated.onDeprecated.removeListener(() => {});
  checkErrors(["This event does not work"]);

  root.deprecated.onDeprecated.hasListener(() => {});
  checkErrors(["This event does not work"]);
});


let choicesJson = [
  {
    namespace: "choices",

    types: [
    ],

    functions: [
      {
        name: "meh",
        type: "function",
        parameters: [
          {
            name: "arg",
            choices: [
              {
                type: "string",
                enum: ["foo", "bar", "baz"],
              },
              {
                type: "string",
                pattern: "florg.*meh",
              },
              {
                type: "integer",
                minimum: 12,
                maximum: 42,
              },
            ],
          },
        ],
      },

      {
        name: "foo",
        type: "function",
        parameters: [
          {
            name: "arg",
            choices: [
              {
                type: "object",
                properties: {
                  blurg: {
                    type: "string",
                    unsupported: true,
                    optional: true,
                  },
                },
                additionalProperties: {
                  type: "string",
                },
              },
              {
                type: "string",
              },
              {
                type: "array",
                minItems: 2,
                maxItems: 3,
                items: {
                  type: "integer",
                },
              },
            ],
          },
        ],
      },

      {
        name: "bar",
        type: "function",
        parameters: [
          {
            name: "arg",
            choices: [
              {
                type: "object",
                properties: {
                  baz: {
                    type: "string",
                  },
                },
              },
              {
                type: "array",
                items: {
                  type: "integer",
                },
              },
            ],
          },
        ],
      },
    ],
  },
];

add_task(async function testChoices() {
  let url = "data:," + JSON.stringify(choicesJson);
  await Schemas.load(url);

  let root = {};
  Schemas.inject(root, wrapper);

  talliedErrors.length = 0;

  Assert.throws(() => root.choices.meh("frog"),
                /Value "frog" must either: be one of \["foo", "bar", "baz"\], match the pattern \/florg\.\*meh\/, or be an integer value/);

  Assert.throws(() => root.choices.meh(4),
                /be a string value, or be at least 12/);

  Assert.throws(() => root.choices.meh(43),
                /be a string value, or be no greater than 42/);


  Assert.throws(() => root.choices.foo([]),
                /be an object value, be a string value, or have at least 2 items/);

  Assert.throws(() => root.choices.foo([1, 2, 3, 4]),
                /be an object value, be a string value, or have at most 3 items/);

  Assert.throws(() => root.choices.foo({foo: 12}),
                /.foo must be a string value, be a string value, or be an array value/);

  Assert.throws(() => root.choices.foo({blurg: "foo"}),
                /not contain an unsupported "blurg" property, be a string value, or be an array value/);


  Assert.throws(() => root.choices.bar({}),
                /contain the required "baz" property, or be an array value/);

  Assert.throws(() => root.choices.bar({baz: "x", quux: "y"}),
                /not contain an unexpected "quux" property, or be an array value/);

  Assert.throws(() => root.choices.bar({baz: "x", quux: "y", foo: "z"}),
                /not contain the unexpected properties \[foo, quux\], or be an array value/);
});


let permissionsJson = [
  {
    namespace: "noPerms",

    types: [],

    functions: [
      {
        name: "noPerms",
        type: "function",
        parameters: [],
      },

      {
        name: "fooPerm",
        type: "function",
        permissions: ["foo"],
        parameters: [],
      },
    ],
  },

  {
    namespace: "fooPerm",

    permissions: ["foo"],

    types: [],

    functions: [
      {
        name: "noPerms",
        type: "function",
        parameters: [],
      },

      {
        name: "fooBarPerm",
        type: "function",
        permissions: ["foo.bar"],
        parameters: [],
      },
    ],
  },
];

add_task(async function testPermissions() {
  let url = "data:," + JSON.stringify(permissionsJson);
  await Schemas.load(url);

  let root = {};
  Schemas.inject(root, wrapper);

  equal(typeof root.noPerms, "object", "noPerms namespace should exist");
  equal(typeof root.noPerms.noPerms, "function", "noPerms.noPerms method should exist");

  equal(root.noPerms.fooPerm, undefined, "noPerms.fooPerm should not method exist");

  equal(root.fooPerm, undefined, "fooPerm namespace should not exist");


  info('Add "foo" permission');
  permissions.add("foo");

  root = {};
  Schemas.inject(root, wrapper);

  equal(typeof root.noPerms, "object", "noPerms namespace should exist");
  equal(typeof root.noPerms.noPerms, "function", "noPerms.noPerms method should exist");
  equal(typeof root.noPerms.fooPerm, "function", "noPerms.fooPerm method should exist");

  equal(typeof root.fooPerm, "object", "fooPerm namespace should exist");
  equal(typeof root.fooPerm.noPerms, "function", "noPerms.noPerms method should exist");

  equal(root.fooPerm.fooBarPerm, undefined, "fooPerm.fooBarPerm method should not exist");


  info('Add "foo.bar" permission');
  permissions.add("foo.bar");

  root = {};
  Schemas.inject(root, wrapper);

  equal(typeof root.noPerms, "object", "noPerms namespace should exist");
  equal(typeof root.noPerms.noPerms, "function", "noPerms.noPerms method should exist");
  equal(typeof root.noPerms.fooPerm, "function", "noPerms.fooPerm method should exist");

  equal(typeof root.fooPerm, "object", "fooPerm namespace should exist");
  equal(typeof root.fooPerm.noPerms, "function", "noPerms.noPerms method should exist");
  equal(typeof root.fooPerm.fooBarPerm, "function", "noPerms.fooBarPerm method should exist");
});

let nestedNamespaceJson = [
  {
    "namespace": "nested.namespace",
    "types": [
      {
        "id": "CustomType",
        "type": "object",
        "events": [
          {
            "name": "onEvent",
            "type": "function",
          },
        ],
        "properties": {
          "url": {
            "type": "string",
          },
        },
        "functions": [
          {
            "name": "functionOnCustomType",
            "type": "function",
            "parameters": [
              {
                "name": "title",
                "type": "string",
              },
            ],
          },
        ],
      },
    ],
    "properties": {
      "instanceOfCustomType": {
        "$ref": "CustomType",
      },
    },
    "functions": [
      {
        "name": "create",
        "type": "function",
        "parameters": [
          {
            "name": "title",
            "type": "string",
          },
        ],
      },
    ],
  },
];

add_task(async function testNestedNamespace() {
  let url = "data:," + JSON.stringify(nestedNamespaceJson);

  await Schemas.load(url);

  let root = {};
  Schemas.inject(root, wrapper);

  talliedErrors.length = 0;

  ok(root.nested, "The root object contains the first namespace level");
  ok(root.nested.namespace, "The first level object contains the second namespace level");

  ok(root.nested.namespace.create, "Got the expected function in the nested namespace");
  equal(typeof root.nested.namespace.create, "function",
        "The property is a function as expected");

  let {instanceOfCustomType} = root.nested.namespace;

  ok(instanceOfCustomType,
     "Got the expected instance of the CustomType defined in the schema");
  ok(instanceOfCustomType.functionOnCustomType,
     "Got the expected method in the CustomType instance");
  ok(instanceOfCustomType.onEvent &&
     instanceOfCustomType.onEvent.addListener &&
     typeof instanceOfCustomType.onEvent.addListener == "function",
     "Got the expected event defined in the CustomType instance");

  instanceOfCustomType.functionOnCustomType("param_value");
  verify("call", "nested.namespace.instanceOfCustomType",
         "functionOnCustomType", ["param_value"]);

  let fakeListener = () => {};
  instanceOfCustomType.onEvent.addListener(fakeListener);
  verify("addListener", "nested.namespace.instanceOfCustomType",
         "onEvent", [fakeListener, []]);
  instanceOfCustomType.onEvent.removeListener(fakeListener);
  verify("removeListener", "nested.namespace.instanceOfCustomType",
         "onEvent", [fakeListener]);

  // TODO: test support properties in a SubModuleType defined in the schema,
  // once implemented, e.g.:
  // ok("url" in instanceOfCustomType,
  //   "Got the expected property defined in the CustomType instance");
});

let $importJson = [
  {
    namespace: "from_the",
    $import: "future",
  },
  {
    namespace: "future",
    properties: {
      PROP1: {value: "original value"},
      PROP2: {value: "second original"},
    },
    types: [
      {
        id: "Colour",
        type: "string",
        enum: ["red", "white", "blue"],
      },
    ],
    functions: [
      {
        name: "dye",
        type: "function",
        parameters: [
          {name: "arg", $ref: "Colour"},
        ],
      },
    ],
  },
  {
    namespace: "embrace",
    $import: "future",
    properties: {
      PROP2: {value: "overridden value"},
    },
    types: [
      {
        id: "Colour",
        type: "string",
        enum: ["blue", "orange"],
      },
    ],
  },
];

add_task(async function test_$import() {
  let url = "data:," + JSON.stringify($importJson);
  await Schemas.load(url);

  let root = {};
  tallied = null;
  Schemas.inject(root, wrapper);
  equal(tallied, null);

  equal(root.from_the.PROP1, "original value", "imported property");
  equal(root.from_the.PROP2, "second original", "second imported property");
  equal(root.from_the.Colour.RED, "red", "imported enum type");
  equal(typeof root.from_the.dye, "function", "imported function");

  root.from_the.dye("white");
  verify("call", "from_the", "dye", ["white"]);

  Assert.throws(() => root.from_the.dye("orange"),
                /Invalid enumeration value/,
                "original imported argument type Colour doesn't include 'orange'");

  equal(root.embrace.PROP1, "original value", "imported property");
  equal(root.embrace.PROP2, "overridden value", "overridden property");
  equal(root.embrace.Colour.ORANGE, "orange", "overridden enum type");
  equal(typeof root.embrace.dye, "function", "imported function");

  root.embrace.dye("orange");
  verify("call", "embrace", "dye", ["orange"]);

  Assert.throws(() => root.embrace.dye("white"),
                /Invalid enumeration value/,
                "overridden argument type Colour doesn't include 'white'");
});

add_task(async function testLocalAPIImplementation() {
  let countGet2 = 0;
  let countProp3 = 0;
  let countProp3SubFoo = 0;

  let testingApiObj = {
    get PROP1() {
      // PROP1 is a schema-defined constant.
      throw new Error("Unexpected get PROP1");
    },
    get prop2() {
      ++countGet2;
      return "prop2 val";
    },
    get prop3() {
      throw new Error("Unexpected get prop3");
    },
    set prop3(v) {
      // prop3 is a submodule, defined as a function, so the API should not pass
      // through assignment to prop3.
      throw new Error("Unexpected set prop3");
    },
  };
  let submoduleApiObj = {
    get sub_foo() {
      ++countProp3;
      return () => {
        return ++countProp3SubFoo;
      };
    },
  };

  let localWrapper = {
    cloneScope: global,
    shouldInject(ns, name) {
      return name == "testing" || ns == "testing" || ns == "testing.prop3";
    },
    getImplementation(ns, name) {
      Assert.ok(ns == "testing" || ns == "testing.prop3");
      if (ns == "testing.prop3" && name == "sub_foo") {
        // It is fine to use `null` here because we don't call async functions.
        return new LocalAPIImplementation(submoduleApiObj, name, null);
      }
      // It is fine to use `null` here because we don't call async functions.
      return new LocalAPIImplementation(testingApiObj, name, null);
    },
  };

  let root = {};
  Schemas.inject(root, localWrapper);
  Assert.equal(countGet2, 0);
  Assert.equal(countProp3, 0);
  Assert.equal(countProp3SubFoo, 0);

  Assert.equal(root.testing.PROP1, 20);

  Assert.equal(root.testing.prop2, "prop2 val");
  Assert.equal(countGet2, 1);

  Assert.equal(root.testing.prop2, "prop2 val");
  Assert.equal(countGet2, 2);

  info(JSON.stringify(root.testing));
  Assert.equal(root.testing.prop3.sub_foo(), 1);
  Assert.equal(countProp3, 1);
  Assert.equal(countProp3SubFoo, 1);

  Assert.equal(root.testing.prop3.sub_foo(), 2);
  Assert.equal(countProp3, 2);
  Assert.equal(countProp3SubFoo, 2);

  root.testing.prop3.sub_foo = () => { return "overwritten"; };
  Assert.equal(root.testing.prop3.sub_foo(), "overwritten");

  root.testing.prop3 = {sub_foo() { return "overwritten again"; }};
  Assert.equal(root.testing.prop3.sub_foo(), "overwritten again");
  Assert.equal(countProp3SubFoo, 2);
});


let defaultsJson = [
  {
    namespace: "defaultsJson",

    types: [],

    functions: [
      {
        name: "defaultFoo",
        type: "function",
        parameters: [
          {name: "arg", type: "object", optional: true, properties: {
            prop1: {type: "integer", optional: true},
          }, default: {prop1: 1}},
        ],
        returns: {
          type: "object",
          additionalProperties: true,
        },
      },
    ],
  },
];

add_task(async function testDefaults() {
  let url = "data:," + JSON.stringify(defaultsJson);
  await Schemas.load(url);

  let testingApiObj = {
    defaultFoo: function(arg) {
      if (Object.keys(arg) != "prop1") {
        throw new Error(`Received the expected default object, default: ${JSON.stringify(arg)}`);
      }
      arg.newProp = 1;
      return arg;
    },
  };

  let localWrapper = {
    cloneScope: global,
    shouldInject(ns) {
      return true;
    },
    getImplementation(ns, name) {
      return new LocalAPIImplementation(testingApiObj, name, null);
    },
  };

  let root = {};
  Schemas.inject(root, localWrapper);

  deepEqual(root.defaultsJson.defaultFoo(), {prop1: 1, newProp: 1});
  deepEqual(root.defaultsJson.defaultFoo({prop1: 2}), {prop1: 2, newProp: 1});
  deepEqual(root.defaultsJson.defaultFoo(), {prop1: 1, newProp: 1});
});

let returnsJson = [{
  namespace: "returns",
  types: [
    {
      id: "Widget",
      type: "object",
      properties: {
        size: {type: "integer"},
        colour: {type: "string", optional: true},
      },
    },
  ],
  functions: [
    {
      name: "complete",
      type: "function",
      returns: {$ref: "Widget"},
      parameters: [],
    },
    {
      name: "optional",
      type: "function",
      returns: {$ref: "Widget"},
      parameters: [],
    },
    {
      name: "invalid",
      type: "function",
      returns: {$ref: "Widget"},
      parameters: [],
    },
  ],
}];

add_task(async function testReturns() {
  const url = "data:," + JSON.stringify(returnsJson);
  await Schemas.load(url);

  const apiObject = {
    complete() {
      return {size: 3, colour: "orange"};
    },
    optional() {
      return {size: 4};
    },
    invalid() {
      return {};
    },
  };

  const localWrapper = {
    cloneScope: global,
    shouldInject(ns) {
      return true;
    },
    getImplementation(ns, name) {
      return new LocalAPIImplementation(apiObject, name, null);
    },
  };

  const root = {};
  Schemas.inject(root, localWrapper);

  deepEqual(root.returns.complete(), {size: 3, colour: "orange"});
  deepEqual(root.returns.optional(), {size: 4},
            "Missing optional properties is allowed");

  if (AppConstants.DEBUG) {
    Assert.throws(() => root.returns.invalid(),
                  `Type error for result value (Property "size" is required)`,
                  "Should throw for invalid result in DEBUG builds");
  } else {
    deepEqual(root.returns.invalid(), {},
              "Doesn't throw for invalid result value in release builds");
  }
});
