"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.SpecGenerator2 = void 0;
const merge_anything_1 = require("merge-anything");
const ts_deepmerge_1 = require("ts-deepmerge");
const runtime_1 = require("@tsoa/runtime");
const specGenerator_1 = require("./specGenerator");
const isVoidType_1 = require("../utils/isVoidType");
const pathUtils_1 = require("../utils/pathUtils");
const swaggerUtils_1 = require("../utils/swaggerUtils");
const validatorUtils_1 = require("../utils/validatorUtils");
class SpecGenerator2 extends specGenerator_1.SpecGenerator {
    constructor(metadata, config) {
        super(metadata, config);
        this.metadata = metadata;
        this.config = config;
    }
    GetSpec() {
        let spec = {
            basePath: (0, pathUtils_1.normalisePath)(this.config.basePath, '/', undefined, false),
            consumes: [swaggerUtils_1.DEFAULT_REQUEST_MEDIA_TYPE],
            definitions: this.buildDefinitions(),
            info: {
                title: '',
            },
            paths: this.buildPaths(),
            produces: [swaggerUtils_1.DEFAULT_RESPONSE_MEDIA_TYPE],
            swagger: '2.0',
        };
        const securityDefinitions = this.config.securityDefinitions ? this.config.securityDefinitions : {};
        const supportedSchemes = ['basic', 'apiKey', 'oauth2'];
        for (const { type } of Object.values(securityDefinitions)) {
            if (!supportedSchemes.includes(type)) {
                throw new Error(`Swagger 2.0 does not support "${type}" security scheme (allowed values: ${supportedSchemes.join(',')})`);
            }
        }
        spec.securityDefinitions = securityDefinitions;
        if (this.config.name) {
            spec.info.title = this.config.name;
        }
        if (this.config.version) {
            spec.info.version = this.config.version;
        }
        if (this.config.host) {
            spec.host = this.config.host;
        }
        if (this.config.description) {
            spec.info.description = this.config.description;
        }
        if (this.config.termsOfService) {
            spec.info.termsOfService = this.config.termsOfService;
        }
        if (this.config.tags) {
            spec.tags = this.config.tags;
        }
        if (this.config.license) {
            spec.info.license = { name: this.config.license };
        }
        if (this.config.contact) {
            spec.info.contact = this.config.contact;
        }
        if (this.config.spec) {
            this.config.specMerging = this.config.specMerging || 'immediate';
            const mergeFuncs = {
                immediate: Object.assign,
                recursive: merge_anything_1.merge,
                deepmerge: (spec, merge) => (0, ts_deepmerge_1.merge)(spec, merge),
            };
            spec = mergeFuncs[this.config.specMerging](spec, this.config.spec);
        }
        if (this.config.schemes) {
            spec.schemes = this.config.schemes;
        }
        return spec;
    }
    buildDefinitions() {
        const definitions = {};
        Object.keys(this.metadata.referenceTypeMap).map(typeName => {
            const referenceType = this.metadata.referenceTypeMap[typeName];
            if (referenceType.dataType === 'refObject') {
                const required = referenceType.properties.filter(p => this.isRequiredWithoutDefault(p) && !this.hasUndefined(p)).map(p => p.name);
                definitions[referenceType.refName] = {
                    description: referenceType.description,
                    properties: this.buildProperties(referenceType.properties),
                    required: required && required.length > 0 ? Array.from(new Set(required)) : undefined,
                    type: 'object',
                };
                if (referenceType.additionalProperties) {
                    definitions[referenceType.refName].additionalProperties = this.buildAdditionalProperties(referenceType.additionalProperties);
                }
                else {
                    // Since additionalProperties was not explicitly set in the TypeScript interface for this model
                    //      ...we need to make a decision
                    definitions[referenceType.refName].additionalProperties = this.determineImplicitAdditionalPropertiesValue();
                }
                if (referenceType.example) {
                    definitions[referenceType.refName].example = referenceType.example;
                }
            }
            else if (referenceType.dataType === 'refEnum') {
                definitions[referenceType.refName] = {
                    description: referenceType.description,
                    enum: referenceType.enums,
                    type: this.decideEnumType(referenceType.enums, referenceType.refName),
                };
                if (this.config.xEnumVarnames && referenceType.enumVarnames !== undefined && referenceType.enums.length === referenceType.enumVarnames.length) {
                    definitions[referenceType.refName]['x-enum-varnames'] = referenceType.enumVarnames;
                }
                if (referenceType.example) {
                    definitions[referenceType.refName].example = referenceType.example;
                }
            }
            else if (referenceType.dataType === 'refAlias') {
                const swaggerType = this.getSwaggerType(referenceType.type);
                const format = referenceType.format;
                const validators = Object.keys(referenceType.validators)
                    .filter(validatorUtils_1.shouldIncludeValidatorInSchema)
                    .reduce((acc, key) => {
                    return {
                        ...acc,
                        [key]: referenceType.validators[key].value,
                    };
                }, {});
                definitions[referenceType.refName] = {
                    ...swaggerType,
                    default: referenceType.default || swaggerType.default,
                    example: referenceType.example,
                    format: format || swaggerType.format,
                    description: referenceType.description,
                    ...validators,
                };
            }
            else {
                (0, runtime_1.assertNever)(referenceType);
            }
            if (referenceType.deprecated) {
                definitions[referenceType.refName]['x-deprecated'] = true;
            }
        });
        return definitions;
    }
    buildPaths() {
        const paths = {};
        this.metadata.controllers.forEach(controller => {
            const normalisedControllerPath = (0, pathUtils_1.normalisePath)(controller.path, '/');
            // construct documentation using all methods except @Hidden
            controller.methods
                .filter(method => !method.isHidden)
                .forEach(method => {
                const normalisedMethodPath = (0, pathUtils_1.normalisePath)(method.path, '/');
                let path = (0, pathUtils_1.normalisePath)(`${normalisedControllerPath}${normalisedMethodPath}`, '/', '', false);
                path = (0, pathUtils_1.convertColonPathParams)(path);
                paths[path] = paths[path] || {};
                this.buildMethod(controller.name, method, paths[path], controller.produces);
            });
        });
        return paths;
    }
    buildMethod(controllerName, method, pathObject, defaultProduces) {
        const pathMethod = (pathObject[method.method] = this.buildOperation(controllerName, method, defaultProduces));
        pathMethod.description = method.description;
        pathMethod.summary = method.summary;
        pathMethod.tags = method.tags;
        // Use operationId tag otherwise fallback to generated. Warning: This doesn't check uniqueness.
        pathMethod.operationId = method.operationId || pathMethod.operationId;
        if (method.deprecated) {
            pathMethod.deprecated = method.deprecated;
        }
        if (method.security) {
            pathMethod.security = method.security;
        }
        const queriesParams = method.parameters.filter(p => p.in === 'queries');
        pathMethod.parameters = method.parameters
            .filter(p => {
            return ['request', 'body-prop', 'res', 'queries', 'request-prop'].indexOf(p.in) === -1;
        })
            .map(p => this.buildParameter(p));
        if (queriesParams.length > 1) {
            throw new Error('Only one queries parameter allowed per controller method.');
        }
        if (queriesParams.length === 1) {
            pathMethod.parameters.push(...this.buildQueriesParameter(queriesParams[0]));
        }
        const bodyPropParameter = this.buildBodyPropParameter(controllerName, method);
        if (bodyPropParameter) {
            pathMethod.parameters.push(bodyPropParameter);
        }
        if (pathMethod.parameters.filter((p) => p.in === 'body').length > 1) {
            throw new Error('Only one body parameter allowed per controller method.');
        }
        method.extensions.forEach(ext => (pathMethod[ext.key] = ext.value));
    }
    buildOperation(controllerName, method, defaultProduces) {
        const swaggerResponses = {};
        let produces = [];
        method.responses.forEach((res) => {
            swaggerResponses[res.name] = {
                description: res.description,
            };
            if (res.schema && !(0, isVoidType_1.isVoidType)(res.schema)) {
                if (res.produces) {
                    produces.push(...res.produces);
                }
                swaggerResponses[res.name].schema = this.getSwaggerType(res.schema);
            }
            if (res.examples && res.examples[0]) {
                if ((res.exampleLabels?.filter(e => e).length || 0) > 0) {
                    console.warn('Example labels are not supported in OpenAPI 2');
                }
                swaggerResponses[res.name].examples = { [swaggerUtils_1.DEFAULT_RESPONSE_MEDIA_TYPE]: res.examples[0] };
            }
            if (res.headers) {
                const headers = {};
                if (res.headers.dataType === 'refObject' || res.headers.dataType === 'nestedObjectLiteral') {
                    res.headers.properties.forEach((each) => {
                        headers[each.name] = {
                            ...this.getSwaggerType(each.type),
                            description: each.description,
                        };
                    });
                }
                else {
                    (0, runtime_1.assertNever)(res.headers);
                }
                swaggerResponses[res.name].headers = headers;
            }
        });
        produces = Array.from(new Set(produces.filter(p => p !== undefined)));
        if (produces.length === 0) {
            produces = defaultProduces || [swaggerUtils_1.DEFAULT_RESPONSE_MEDIA_TYPE];
        }
        const operation = {
            operationId: this.getOperationId(controllerName, method),
            produces: produces,
            responses: swaggerResponses,
        };
        const hasBody = method.parameters.some(p => p.in === 'body');
        const hasFormData = method.parameters.some(p => p.in === 'formData');
        if (hasBody || hasFormData) {
            operation.consumes = [];
            if (hasBody) {
                operation.consumes.push(method.consumes || swaggerUtils_1.DEFAULT_REQUEST_MEDIA_TYPE);
            }
            if (hasFormData) {
                operation.consumes.push('multipart/form-data');
            }
        }
        return operation;
    }
    buildBodyPropParameter(controllerName, method) {
        const properties = {};
        const required = [];
        method.parameters
            .filter(p => p.in === 'body-prop')
            .forEach(p => {
            properties[p.name] = this.getSwaggerType(p.type);
            properties[p.name].default = p.default;
            properties[p.name].description = p.description;
            properties[p.name].example = p.example === undefined ? undefined : p.example[0];
            if (this.isRequiredWithoutDefault(p)) {
                required.push(p.name);
            }
        });
        if (!Object.keys(properties).length) {
            return;
        }
        const parameter = {
            in: 'body',
            name: 'body',
            schema: {
                properties,
                title: `${this.getOperationId(controllerName, method)}Body`,
                type: 'object',
            },
        };
        if (required.length) {
            parameter.schema.required = required;
        }
        return parameter;
    }
    buildQueriesParameter(source) {
        if (source.type.dataType === 'refObject' || source.type.dataType === 'nestedObjectLiteral') {
            const properties = source.type.properties;
            return properties.map(property => this.buildParameter(this.queriesPropertyToQueryParameter(property)));
        }
        throw new Error(`Queries '${source.name}' parameter must be an object.`);
    }
    buildParameter(source) {
        let parameter = {
            default: source.default,
            description: source.description,
            in: source.in,
            name: source.name,
            required: this.isRequiredWithoutDefault(source),
        };
        if (source.deprecated) {
            parameter['x-deprecated'] = true;
        }
        let type = source.type;
        if (source.in !== 'body' && source.type.dataType === 'refEnum') {
            // swagger does not support referencing enums
            // (except for body parameters), so we have to inline it
            type = {
                dataType: 'enum',
                enums: source.type.enums,
            };
        }
        const parameterType = this.getSwaggerType(type);
        if (parameterType.format) {
            parameter.format = this.throwIfNotDataFormat(parameterType.format);
        }
        if (runtime_1.Swagger.isQueryParameter(parameter) && parameterType.type === 'array') {
            parameter.collectionFormat = 'multi';
        }
        if (parameterType.$ref) {
            parameter.schema = parameterType;
            return parameter;
        }
        const validatorObjs = {};
        Object.keys(source.validators)
            .filter(validatorUtils_1.shouldIncludeValidatorInSchema)
            .forEach(key => {
            validatorObjs[key] = source.validators[key].value;
        });
        if (source.in === 'body' && source.type.dataType === 'array') {
            parameter.schema = {
                items: parameterType.items,
                type: 'array',
            };
        }
        else {
            if (source.type.dataType === 'any') {
                if (source.in === 'body') {
                    parameter.schema = { type: 'object' };
                }
                else {
                    parameter.type = 'string';
                }
            }
            else {
                if (parameterType.type) {
                    parameter.type = this.throwIfNotDataType(parameterType.type);
                }
                parameter.items = parameterType.items;
                parameter.enum = parameterType.enum;
            }
        }
        if (parameter.schema) {
            parameter.schema = Object.assign({}, parameter.schema, validatorObjs);
        }
        else {
            parameter = Object.assign({}, parameter, validatorObjs);
        }
        return parameter;
    }
    buildProperties(source) {
        const properties = {};
        source.forEach(property => {
            let swaggerType = this.getSwaggerType(property.type);
            const format = property.format;
            swaggerType.description = property.description;
            swaggerType.example = property.example;
            swaggerType.format = format || swaggerType.format;
            if (!swaggerType.$ref) {
                swaggerType.default = property.default;
                Object.keys(property.validators)
                    .filter(validatorUtils_1.shouldIncludeValidatorInSchema)
                    .forEach(key => {
                    swaggerType = { ...swaggerType, [key]: property.validators[key].value };
                });
            }
            if (property.deprecated) {
                swaggerType['x-deprecated'] = true;
            }
            if (property.extensions) {
                property.extensions.forEach(property => {
                    swaggerType[property.key] = property.value;
                });
            }
            properties[property.name] = swaggerType;
        });
        return properties;
    }
    getSwaggerTypeForUnionType(type) {
        const typesWithoutUndefined = type.types.filter(x => x.dataType !== 'undefined');
        // Backwards compatible representation of a literal enumeration
        if (typesWithoutUndefined.every(subType => subType.dataType === 'enum')) {
            const mergedEnum = { dataType: 'enum', enums: [] };
            typesWithoutUndefined.forEach(t => {
                /* eslint-disable @typescript-eslint/no-unnecessary-type-assertion */
                mergedEnum.enums = [...mergedEnum.enums, ...t.enums];
            });
            return this.getSwaggerTypeForEnumType(mergedEnum);
        }
        else if (typesWithoutUndefined.length === 2 && typesWithoutUndefined.find(typeInUnion => typeInUnion.dataType === 'enum' && typeInUnion.enums.includes(null))) {
            // Backwards compatible representation of dataType or null, $ref does not allow any sibling attributes, so we have to bail out
            const nullEnumIndex = typesWithoutUndefined.findIndex(type => type.dataType === 'enum' && type.enums.includes(null));
            const typeIndex = nullEnumIndex === 1 ? 0 : 1;
            const swaggerType = this.getSwaggerType(typesWithoutUndefined[typeIndex]);
            const isRef = !!swaggerType.$ref;
            if (isRef) {
                return { type: 'object' };
            }
            else {
                swaggerType['x-nullable'] = true;
                return swaggerType;
            }
        }
        else if (process.env.NODE_ENV !== 'tsoa_test') {
            // eslint-disable-next-line no-console
            console.warn('Swagger 2.0 does not support union types beyond string literals.\n' + 'If you would like to take advantage of this, please change tsoa.json\'s "specVersion" to 3.');
        }
        return { type: 'object' };
    }
    getSwaggerTypeForIntersectionType(type) {
        const properties = type.types.reduce((acc, type) => {
            if (type.dataType === 'refObject') {
                let refType = type;
                refType = this.metadata.referenceTypeMap[refType.refName];
                const props = refType &&
                    refType.properties &&
                    refType.properties.reduce((acc, prop) => {
                        return {
                            ...acc,
                            [prop.name]: this.getSwaggerType(prop.type),
                        };
                    }, {});
                return { ...acc, ...props };
            }
            else {
                process.env.NODE_ENV !== 'tsoa_test' &&
                    // eslint-disable-next-line no-console
                    console.warn('Swagger 2.0 does not fully support this kind of intersection types. If you would like to take advantage of this, please change tsoa.json\'s "specVersion" to 3.');
                return { ...acc };
            }
        }, {});
        return { type: 'object', properties };
    }
    getSwaggerTypeForReferenceType(referenceType) {
        return { $ref: `#/definitions/${encodeURIComponent(referenceType.refName)}` };
    }
    decideEnumType(anEnum, nameOfEnum) {
        const typesUsedInEnum = this.determineTypesUsedInEnum(anEnum);
        const badEnumErrorMessage = () => {
            const valuesDelimited = Array.from(typesUsedInEnum).join(',');
            return `Enums can only have string or number values, but enum ${nameOfEnum} had ${valuesDelimited}`;
        };
        let enumTypeForSwagger;
        if (typesUsedInEnum.has('string') && typesUsedInEnum.size === 1) {
            enumTypeForSwagger = 'string';
        }
        else if (typesUsedInEnum.has('number') && typesUsedInEnum.size === 1) {
            enumTypeForSwagger = 'number';
        }
        else {
            throw new Error(badEnumErrorMessage());
        }
        return enumTypeForSwagger;
    }
    getSwaggerTypeForEnumType(enumType) {
        const types = this.determineTypesUsedInEnum(enumType.enums);
        const type = types.size === 1 ? types.values().next().value : 'string';
        const nullable = enumType.enums.includes(null) ? true : false;
        return { type, enum: enumType.enums.map(member => (0, swaggerUtils_1.getValue)(type, member)), ['x-nullable']: nullable };
    }
}
exports.SpecGenerator2 = SpecGenerator2;
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