@russ-b/nestjs-common-tools/dist/grpc/services/proto/field.selector.js

NestJS utility tools

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.FieldSelector = void 0;
const proto_constants_1 = require("./constants/proto.constants");
class FieldSelector {
    constructor(fields, messageTypes) {
        this.fields = fields;
        this.messageTypes = messageTypes;
    }
    findFieldsByType(typeName, fields) {
        return (fields ? fields : this.fields)
            .filter(this.isMessageType)
            .map((field) => this.mapField(field, typeName))
            .filter((f) => f.fields === undefined || f.fields.length > 0);
    }
    isMessageType(field) {
        return field.type === proto_constants_1.TYPE_MESSAGE;
    }
    mapField(field, typeName) {
        if (field.typeName === typeName) {
            return { name: field.name };
        }
        const fieldDescriptor = this.messageTypes.get(field.typeName);
        if (!fieldDescriptor) {
            throw new Error(`Could not find field definition for type: ${field.typeName}`);
        }
        return {
            name: field.name,
            fields: this.findFieldsByType(typeName, fieldDescriptor),
        };
    }
}
exports.FieldSelector = FieldSelector;
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