// Copyright 2021-2024 Buf Technologies, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//      http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
/**
 * Create a new registry from the given types.
 */
function createRegistry(...types) {
    const mutable = createMutableRegistry(...types);
    delete mutable.add;
    return mutable;
}
/**
 * Create a mutable registry from the given types.
 */
function createMutableRegistry(...types) {
    const messages = {};
    const enums = {};
    const services = {};
    const extensionsByName = new Map();
    const extensionsByExtendee = new Map();
    const registry = {
        findMessage(typeName) {
            return messages[typeName];
        },
        findEnum(typeName) {
            return enums[typeName];
        },
        findService(typeName) {
            return services[typeName];
        },
        findExtensionFor(typeName, no) {
            var _a, _b;
            return (_b = (_a = extensionsByExtendee.get(typeName)) === null || _a === void 0 ? void 0 : _a.get(no)) !== null && _b !== void 0 ? _b : undefined;
        },
        findExtension(typeName) {
            var _a;
            return (_a = extensionsByName.get(typeName)) !== null && _a !== void 0 ? _a : undefined;
        },
        add(type) {
            var _a;
            if ("fields" in type) {
                if (!this.findMessage(type.typeName)) {
                    messages[type.typeName] = type;
                    type.fields.list().forEach(addField);
                }
            }
            else if ("methods" in type) {
                if (!this.findService(type.typeName)) {
                    services[type.typeName] = type;
                    for (const method of Object.values(type.methods)) {
                        this.add(method.I);
                        this.add(method.O);
                    }
                }
            }
            else if ("extendee" in type) {
                if (!extensionsByName.has(type.typeName)) {
                    extensionsByName.set(type.typeName, type);
                    const extendeeName = type.extendee.typeName;
                    if (!extensionsByExtendee.has(extendeeName)) {
                        extensionsByExtendee.set(extendeeName, new Map());
                    }
                    (_a = extensionsByExtendee.get(extendeeName)) === null || _a === void 0 ? void 0 : _a.set(type.field.no, type);
                    this.add(type.extendee);
                    addField(type.field);
                }
            }
            else {
                enums[type.typeName] = type;
            }
        },
    };
    function addField(field) {
        if (field.kind == "message") {
            registry.add(field.T);
        }
        else if (field.kind == "map" && field.V.kind == "message") {
            registry.add(field.V.T);
        }
        else if (field.kind == "enum") {
            registry.add(field.T);
        }
    }
    for (const type of types) {
        registry.add(type);
    }
    return registry;
}

export { createMutableRegistry, createRegistry };
