feat: Add support using Freezed classes as collection models

packages/cloud_firestore_odm/cloud_firestore_odm/example/lib/integration/freezed.dart

@@ -0,0 +1,32 @@
+// ignore_for_file: invalid_annotation_target
+
+import 'package:cloud_firestore/cloud_firestore.dart';
+import 'package:cloud_firestore_odm/cloud_firestore_odm.dart';
+import 'package:freezed_annotation/freezed_annotation.dart';
+
+part 'freezed.freezed.dart';
+part 'freezed.g.dart';
+
+@Collection<Person>('freezed-test')
+@freezed
+class Person with _$Person {
+  @JsonSerializable(fieldRename: FieldRename.snake)
+  factory Person({
+    required String firstName,
+    @JsonKey(name: 'LAST_NAME') required String lastName,
+    @JsonKey(ignore: true) int? ignored,
+  }) = _Person;
+
+  factory Person.fromJson(Map<String, Object?> json) => _$PersonFromJson(json);
+}
+
+final personRef = PersonCollectionReference();
+
+@Collection<PublicRedirected>('freezed-test')
+@freezed
+class PublicRedirected with _$PublicRedirected {
+  factory PublicRedirected({required String value}) = PublicRedirected2;
+
+  factory PublicRedirected.fromJson(Map<String, Object?> json) =>
+      _$PublicRedirectedFromJson(json);
+}

packages/cloud_firestore_odm/cloud_firestore_odm/example/lib/integration/freezed.freezed.dart

@@ -0,0 +1,330 @@
+// coverage:ignore-file
+// GENERATED CODE - DO NOT MODIFY BY HAND
+// ignore_for_file: type=lint
+// ignore_for_file: unused_element, deprecated_member_use, deprecated_member_use_from_same_package, use_function_type_syntax_for_parameters, unnecessary_const, avoid_init_to_null, invalid_override_different_default_values_named, prefer_expression_function_bodies, annotate_overrides, invalid_annotation_target
+
+part of 'freezed.dart';
+
+// **************************************************************************
+// FreezedGenerator
+// **************************************************************************
+
+T _$identity<T>(T value) => value;
+
+final _privateConstructorUsedError = UnsupportedError(
+    'It seems like you constructed your class using `MyClass._()`. This constructor is only meant to be used by freezed and you are not supposed to need it nor use it.\nPlease check the documentation here for more information: https://github.com/rrousselGit/freezed#custom-getters-and-methods');
+
+Person _$PersonFromJson(Map<String, dynamic> json) {
+  return _Person.fromJson(json);
+}
+
+/// @nodoc
+mixin _$Person {
+  String get firstName => throw _privateConstructorUsedError;
+  @JsonKey(name: 'LAST_NAME')
+  String get lastName => throw _privateConstructorUsedError;
+  @JsonKey(ignore: true)
+  int? get ignored => throw _privateConstructorUsedError;
+
+  Map<String, dynamic> toJson() => throw _privateConstructorUsedError;
+  @JsonKey(ignore: true)
+  $PersonCopyWith<Person> get copyWith => throw _privateConstructorUsedError;
+}
+
+/// @nodoc
+abstract class $PersonCopyWith<$Res> {
+  factory $PersonCopyWith(Person value, $Res Function(Person) then) =
+      _$PersonCopyWithImpl<$Res>;
+  $Res call(
+      {String firstName,
+      @JsonKey(name: 'LAST_NAME') String lastName,
+      @JsonKey(ignore: true) int? ignored});
+}
+
+/// @nodoc
+class _$PersonCopyWithImpl<$Res> implements $PersonCopyWith<$Res> {
+  _$PersonCopyWithImpl(this._value, this._then);
+
+  final Person _value;
+  // ignore: unused_field
+  final $Res Function(Person) _then;
+
+  @override
+  $Res call({
+    Object? firstName = freezed,
+    Object? lastName = freezed,
+    Object? ignored = freezed,
+  }) {
+    return _then(_value.copyWith(
+      firstName: firstName == freezed
+          ? _value.firstName
+          : firstName // ignore: cast_nullable_to_non_nullable
+              as String,
+      lastName: lastName == freezed
+          ? _value.lastName
+          : lastName // ignore: cast_nullable_to_non_nullable
+              as String,
+      ignored: ignored == freezed
+          ? _value.ignored
+          : ignored // ignore: cast_nullable_to_non_nullable
+              as int?,
+    ));
+  }
+}
+
+/// @nodoc
+abstract class _$$_PersonCopyWith<$Res> implements $PersonCopyWith<$Res> {
+  factory _$$_PersonCopyWith(_$_Person value, $Res Function(_$_Person) then) =
+      __$$_PersonCopyWithImpl<$Res>;
+  @override
+  $Res call(
+      {String firstName,
+      @JsonKey(name: 'LAST_NAME') String lastName,
+      @JsonKey(ignore: true) int? ignored});
+}
+
+/// @nodoc
+class __$$_PersonCopyWithImpl<$Res> extends _$PersonCopyWithImpl<$Res>
+    implements _$$_PersonCopyWith<$Res> {
+  __$$_PersonCopyWithImpl(_$_Person _value, $Res Function(_$_Person) _then)
+      : super(_value, (v) => _then(v as _$_Person));
+
+  @override
+  _$_Person get _value => super._value as _$_Person;
+
+  @override
+  $Res call({
+    Object? firstName = freezed,
+    Object? lastName = freezed,
+    Object? ignored = freezed,
+  }) {
+    return _then(_$_Person(
+      firstName: firstName == freezed
+          ? _value.firstName
+          : firstName // ignore: cast_nullable_to_non_nullable
+              as String,
+      lastName: lastName == freezed
+          ? _value.lastName
+          : lastName // ignore: cast_nullable_to_non_nullable
+              as String,
+      ignored: ignored == freezed
+          ? _value.ignored
+          : ignored // ignore: cast_nullable_to_non_nullable
+              as int?,
+    ));
+  }
+}
+
+/// @nodoc
+
+@JsonSerializable(fieldRename: FieldRename.snake)
+class _$_Person implements _Person {
+  _$_Person(
+      {required this.firstName,
+      @JsonKey(name: 'LAST_NAME') required this.lastName,
+      @JsonKey(ignore: true) this.ignored});
+
+  factory _$_Person.fromJson(Map<String, dynamic> json) =>
+      _$$_PersonFromJson(json);
+
+  @override
+  final String firstName;
+  @override
+  @JsonKey(name: 'LAST_NAME')
+  final String lastName;
+  @override
+  @JsonKey(ignore: true)
+  final int? ignored;
+
+  @override
+  String toString() {
+    return 'Person(firstName: $firstName, lastName: $lastName, ignored: $ignored)';
+  }
+
+  @override
+  bool operator ==(dynamic other) {
+    return identical(this, other) ||
+        (other.runtimeType == runtimeType &&
+            other is _$_Person &&
+            const DeepCollectionEquality().equals(other.firstName, firstName) &&
+            const DeepCollectionEquality().equals(other.lastName, lastName) &&
+            const DeepCollectionEquality().equals(other.ignored, ignored));
+  }
+
+  @JsonKey(ignore: true)
+  @override
+  int get hashCode => Object.hash(
+      runtimeType,
+      const DeepCollectionEquality().hash(firstName),
+      const DeepCollectionEquality().hash(lastName),
+      const DeepCollectionEquality().hash(ignored));
+
+  @JsonKey(ignore: true)
+  @override
+  _$$_PersonCopyWith<_$_Person> get copyWith =>
+      __$$_PersonCopyWithImpl<_$_Person>(this, _$identity);
+
+  @override
+  Map<String, dynamic> toJson() {
+    return _$$_PersonToJson(
+      this,
+    );
+  }
+}
+
+abstract class _Person implements Person {
+  factory _Person(
+      {required final String firstName,
+      @JsonKey(name: 'LAST_NAME') required final String lastName,
+      @JsonKey(ignore: true) final int? ignored}) = _$_Person;
+
+  factory _Person.fromJson(Map<String, dynamic> json) = _$_Person.fromJson;
+
+  @override
+  String get firstName;
+  @override
+  @JsonKey(name: 'LAST_NAME')
+  String get lastName;
+  @override
+  @JsonKey(ignore: true)
+  int? get ignored;
+  @override
+  @JsonKey(ignore: true)
+  _$$_PersonCopyWith<_$_Person> get copyWith =>
+      throw _privateConstructorUsedError;
+}
+
+PublicRedirected _$PublicRedirectedFromJson(Map<String, dynamic> json) {
+  return PublicRedirected2.fromJson(json);
+}
+
+/// @nodoc
+mixin _$PublicRedirected {
+  String get value => throw _privateConstructorUsedError;
+
+  Map<String, dynamic> toJson() => throw _privateConstructorUsedError;
+  @JsonKey(ignore: true)
+  $PublicRedirectedCopyWith<PublicRedirected> get copyWith =>
+      throw _privateConstructorUsedError;
+}
+
+/// @nodoc
+abstract class $PublicRedirectedCopyWith<$Res> {
+  factory $PublicRedirectedCopyWith(
+          PublicRedirected value, $Res Function(PublicRedirected) then) =
+      _$PublicRedirectedCopyWithImpl<$Res>;
+  $Res call({String value});
+}
+
+/// @nodoc
+class _$PublicRedirectedCopyWithImpl<$Res>
+    implements $PublicRedirectedCopyWith<$Res> {
+  _$PublicRedirectedCopyWithImpl(this._value, this._then);
+
+  final PublicRedirected _value;
+  // ignore: unused_field
+  final $Res Function(PublicRedirected) _then;
+
+  @override
+  $Res call({
+    Object? value = freezed,
+  }) {
+    return _then(_value.copyWith(
+      value: value == freezed
+          ? _value.value
+          : value // ignore: cast_nullable_to_non_nullable
+              as String,
+    ));
+  }
+}
+
+/// @nodoc
+abstract class _$$PublicRedirected2CopyWith<$Res>
+    implements $PublicRedirectedCopyWith<$Res> {
+  factory _$$PublicRedirected2CopyWith(
+          _$PublicRedirected2 value, $Res Function(_$PublicRedirected2) then) =
+      __$$PublicRedirected2CopyWithImpl<$Res>;
+  @override
+  $Res call({String value});
+}
+
+/// @nodoc
+class __$$PublicRedirected2CopyWithImpl<$Res>
+    extends _$PublicRedirectedCopyWithImpl<$Res>
+    implements _$$PublicRedirected2CopyWith<$Res> {
+  __$$PublicRedirected2CopyWithImpl(
+      _$PublicRedirected2 _value, $Res Function(_$PublicRedirected2) _then)
+      : super(_value, (v) => _then(v as _$PublicRedirected2));
+
+  @override
+  _$PublicRedirected2 get _value => super._value as _$PublicRedirected2;
+
+  @override
+  $Res call({
+    Object? value = freezed,
+  }) {
+    return _then(_$PublicRedirected2(
+      value: value == freezed
+          ? _value.value
+          : value // ignore: cast_nullable_to_non_nullable
+              as String,
+    ));
+  }
+}
+
+/// @nodoc
+@JsonSerializable()
+class _$PublicRedirected2 implements PublicRedirected2 {
+  _$PublicRedirected2({required this.value});
+
+  factory _$PublicRedirected2.fromJson(Map<String, dynamic> json) =>
+      _$$PublicRedirected2FromJson(json);
+
+  @override
+  final String value;
+
+  @override
+  String toString() {
+    return 'PublicRedirected(value: $value)';
+  }
+
+  @override
+  bool operator ==(dynamic other) {
+    return identical(this, other) ||
+        (other.runtimeType == runtimeType &&
+            other is _$PublicRedirected2 &&
+            const DeepCollectionEquality().equals(other.value, value));
+  }
+
+  @JsonKey(ignore: true)
+  @override
+  int get hashCode =>
+      Object.hash(runtimeType, const DeepCollectionEquality().hash(value));
+
+  @JsonKey(ignore: true)
+  @override
+  _$$PublicRedirected2CopyWith<_$PublicRedirected2> get copyWith =>
+      __$$PublicRedirected2CopyWithImpl<_$PublicRedirected2>(this, _$identity);
+
+  @override
+  Map<String, dynamic> toJson() {
+    return _$$PublicRedirected2ToJson(
+      this,
+    );
+  }
+}
+
+abstract class PublicRedirected2 implements PublicRedirected {
+  factory PublicRedirected2({required final String value}) =
+      _$PublicRedirected2;
+
+  factory PublicRedirected2.fromJson(Map<String, dynamic> json) =
+      _$PublicRedirected2.fromJson;
+
+  @override
+  String get value;
+  @override
+  @JsonKey(ignore: true)
+  _$$PublicRedirected2CopyWith<_$PublicRedirected2> get copyWith =>
+      throw _privateConstructorUsedError;
+}