dynamodb-toolbox
Version:
Lightweight and type-safe query builder for DynamoDB and TypeScript.
126 lines (125 loc) • 5.6 kB
JavaScript
import { $APPEND, $PREPEND, $SET, isAppending, isPrepending } from '../../../../../entity/actions/update/symbols/index.js';
import { parseReferenceExtension } from '../../../../../entity/actions/update/updateItemParams/extension/reference.js';
import { Parser } from '../../../../../schema/actions/parse/index.js';
import { isArray } from '../../../../../utils/validation/isArray.js';
import { isObject } from '../../../../../utils/validation/isObject.js';
export const parseListExtension = (schema, input, options) => {
const { transform = true, valuePath } = options;
if (isObject(input)) {
if (isAppending(input) && input[$APPEND] !== undefined) {
const appendedValue = input[$APPEND];
const appendedValuePath = [...(valuePath !== null && valuePath !== void 0 ? valuePath : []), '$APPEND'];
if (isArray(appendedValue)) {
return {
isExtension: true,
*extensionParser() {
const parsers = appendedValue.map((element, index) =>
// Should be a simple list of valid elements (not extended)
new Parser(schema.elements).start(element, {
fill: false,
transform,
valuePath: [...appendedValuePath, index]
}));
const parsedValue = { [$APPEND]: parsers.map(parser => parser.next().value) };
if (transform) {
yield parsedValue;
}
else {
return parsedValue;
}
const transformedValue = { [$APPEND]: parsers.map(parser => parser.next().value) };
return transformedValue;
}
};
}
return {
isExtension: true,
*extensionParser() {
const parser = new Parser(schema).start(appendedValue, {
fill: false,
transform,
parseExtension: parseReferenceExtension,
valuePath: appendedValuePath
});
const parsedValue = { [$APPEND]: parser.next().value };
if (transform) {
yield parsedValue;
}
else {
return parsedValue;
}
const transformedValue = { [$APPEND]: parser.next().value };
return transformedValue;
}
};
}
if (isPrepending(input) && input[$PREPEND] !== undefined) {
const prependedValue = input[$PREPEND];
const prependedValuePath = [...(valuePath !== null && valuePath !== void 0 ? valuePath : []), '$PREPEND'];
if (isArray(prependedValue)) {
return {
isExtension: true,
*extensionParser() {
const parsers = prependedValue.map((element, index) =>
// Should be a simple list of valid elements (not extended)
new Parser(schema.elements).start(element, {
fill: false,
transform,
valuePath: [...prependedValuePath, index]
}));
const parsedValue = { [$PREPEND]: parsers.map(parser => parser.next().value) };
if (transform) {
yield parsedValue;
}
else {
return parsedValue;
}
const transformedValue = { [$PREPEND]: parsers.map(parser => parser.next().value) };
return transformedValue;
}
};
}
return {
isExtension: true,
*extensionParser() {
const parser = new Parser(schema).start(prependedValue, {
fill: false,
transform,
parseExtension: parseReferenceExtension,
valuePath: prependedValuePath
});
const parsedValue = { [$PREPEND]: parser.next().value };
if (transform) {
yield parsedValue;
}
else {
return parsedValue;
}
const transformedValue = { [$PREPEND]: parser.next().value };
return transformedValue;
}
};
}
}
if (isArray(input)) {
return {
isExtension: true,
*extensionParser() {
const parser = new Parser(schema).start(input, { fill: false, transform, valuePath });
const parsedValue = { [$SET]: parser.next().value };
if (transform) {
yield parsedValue;
}
else {
return parsedValue;
}
const transformedValue = { [$SET]: parser.next().value };
return transformedValue;
}
};
}
return {
isExtension: false,
unextendedInput: input
};
};