"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
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const codegen_1 = require("../../compile/codegen");
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const types_1 = require("../discriminator/types");
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const compile_1 = require("../../compile");
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const ref_error_1 = require("../../compile/ref_error");
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const util_1 = require("../../compile/util");
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const error = {
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message: ({ params: { discrError, tagName } }) => discrError === types_1.DiscrError.Tag
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? `tag "${tagName}" must be string`
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: `value of tag "${tagName}" must be in oneOf`,
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params: ({ params: { discrError, tag, tagName } }) => (0, codegen_1._) `{error: ${discrError}, tag: ${tagName}, tagValue: ${tag}}`,
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};
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const def = {
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keyword: "discriminator",
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type: "object",
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schemaType: "object",
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error,
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code(cxt) {
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const { gen, data, schema, parentSchema, it } = cxt;
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const { oneOf } = parentSchema;
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if (!it.opts.discriminator) {
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throw new Error("discriminator: requires discriminator option");
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}
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const tagName = schema.propertyName;
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if (typeof tagName != "string")
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throw new Error("discriminator: requires propertyName");
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if (schema.mapping)
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throw new Error("discriminator: mapping is not supported");
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if (!oneOf)
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throw new Error("discriminator: requires oneOf keyword");
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const valid = gen.let("valid", false);
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const tag = gen.const("tag", (0, codegen_1._) `${data}${(0, codegen_1.getProperty)(tagName)}`);
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gen.if((0, codegen_1._) `typeof ${tag} == "string"`, () => validateMapping(), () => cxt.error(false, { discrError: types_1.DiscrError.Tag, tag, tagName }));
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cxt.ok(valid);
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function validateMapping() {
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const mapping = getMapping();
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gen.if(false);
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for (const tagValue in mapping) {
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gen.elseIf((0, codegen_1._) `${tag} === ${tagValue}`);
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gen.assign(valid, applyTagSchema(mapping[tagValue]));
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}
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gen.else();
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cxt.error(false, { discrError: types_1.DiscrError.Mapping, tag, tagName });
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gen.endIf();
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}
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function applyTagSchema(schemaProp) {
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const _valid = gen.name("valid");
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const schCxt = cxt.subschema({ keyword: "oneOf", schemaProp }, _valid);
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cxt.mergeEvaluated(schCxt, codegen_1.Name);
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return _valid;
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}
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function getMapping() {
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var _a;
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const oneOfMapping = {};
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const topRequired = hasRequired(parentSchema);
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let tagRequired = true;
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for (let i = 0; i < oneOf.length; i++) {
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let sch = oneOf[i];
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if ((sch === null || sch === void 0 ? void 0 : sch.$ref) && !(0, util_1.schemaHasRulesButRef)(sch, it.self.RULES)) {
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const ref = sch.$ref;
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sch = compile_1.resolveRef.call(it.self, it.schemaEnv.root, it.baseId, ref);
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if (sch instanceof compile_1.SchemaEnv)
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sch = sch.schema;
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if (sch === undefined)
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throw new ref_error_1.default(it.opts.uriResolver, it.baseId, ref);
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}
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const propSch = (_a = sch === null || sch === void 0 ? void 0 : sch.properties) === null || _a === void 0 ? void 0 : _a[tagName];
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if (typeof propSch != "object") {
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throw new Error(`discriminator: oneOf subschemas (or referenced schemas) must have "properties/${tagName}"`);
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}
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tagRequired = tagRequired && (topRequired || hasRequired(sch));
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addMappings(propSch, i);
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}
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if (!tagRequired)
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throw new Error(`discriminator: "${tagName}" must be required`);
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return oneOfMapping;
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function hasRequired({ required }) {
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return Array.isArray(required) && required.includes(tagName);
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}
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function addMappings(sch, i) {
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if (sch.const) {
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addMapping(sch.const, i);
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}
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else if (sch.enum) {
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for (const tagValue of sch.enum) {
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addMapping(tagValue, i);
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}
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}
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else {
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throw new Error(`discriminator: "properties/${tagName}" must have "const" or "enum"`);
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}
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}
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function addMapping(tagValue, i) {
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if (typeof tagValue != "string" || tagValue in oneOfMapping) {
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throw new Error(`discriminator: "${tagName}" values must be unique strings`);
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}
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oneOfMapping[tagValue] = i;
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}
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}
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},
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};
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exports.default = def;
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//# sourceMappingURL=index.js.map
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