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import { warn } from '../log.js';
import { createStringifyContext } from '../stringify/stringify.js';
import { isAlias, isSeq, isScalar, isMap, isNode } from './Node.js';
import { Scalar } from './Scalar.js';
import { toJS } from './toJS.js';
const MERGE_KEY = '<<';
function addPairToJSMap(ctx, map, { key, value }) {
if (ctx?.doc.schema.merge && isMergeKey(key)) {
value = isAlias(value) ? value.resolve(ctx.doc) : value;
if (isSeq(value))
for (const it of value.items)
mergeToJSMap(ctx, map, it);
else if (Array.isArray(value))
for (const it of value)
mergeToJSMap(ctx, map, it);
else
mergeToJSMap(ctx, map, value);
}
else {
const jsKey = toJS(key, '', ctx);
if (map instanceof Map) {
map.set(jsKey, toJS(value, jsKey, ctx));
}
else if (map instanceof Set) {
map.add(jsKey);
}
else {
const stringKey = stringifyKey(key, jsKey, ctx);
const jsValue = toJS(value, stringKey, ctx);
if (stringKey in map)
Object.defineProperty(map, stringKey, {
value: jsValue,
writable: true,
enumerable: true,
configurable: true
});
else
map[stringKey] = jsValue;
}
}
return map;
}
const isMergeKey = (key) => key === MERGE_KEY ||
(isScalar(key) &&
key.value === MERGE_KEY &&
(!key.type || key.type === Scalar.PLAIN));
// If the value associated with a merge key is a single mapping node, each of
// its key/value pairs is inserted into the current mapping, unless the key
// already exists in it. If the value associated with the merge key is a
// sequence, then this sequence is expected to contain mapping nodes and each
// of these nodes is merged in turn according to its order in the sequence.
// Keys in mapping nodes earlier in the sequence override keys specified in
// later mapping nodes. -- http://yaml.org/type/merge.html
function mergeToJSMap(ctx, map, value) {
const source = ctx && isAlias(value) ? value.resolve(ctx.doc) : value;
if (!isMap(source))
throw new Error('Merge sources must be maps or map aliases');
const srcMap = source.toJSON(null, ctx, Map);
for (const [key, value] of srcMap) {
if (map instanceof Map) {
if (!map.has(key))
map.set(key, value);
}
else if (map instanceof Set) {
map.add(key);
}
else if (!Object.prototype.hasOwnProperty.call(map, key)) {
Object.defineProperty(map, key, {
value,
writable: true,
enumerable: true,
configurable: true
});
}
}
return map;
}
function stringifyKey(key, jsKey, ctx) {
if (jsKey === null)
return '';
if (typeof jsKey !== 'object')
return String(jsKey);
if (isNode(key) && ctx && ctx.doc) {
const strCtx = createStringifyContext(ctx.doc, {});
strCtx.anchors = new Set();
for (const node of ctx.anchors.keys())
strCtx.anchors.add(node.anchor);
strCtx.inFlow = true;
strCtx.inStringifyKey = true;
const strKey = key.toString(strCtx);
if (!ctx.mapKeyWarned) {
let jsonStr = JSON.stringify(strKey);
if (jsonStr.length > 40)
jsonStr = jsonStr.substring(0, 36) + '..."';
warn(ctx.doc.options.logLevel, `Keys with collection values will be stringified due to JS Object restrictions: ${jsonStr}. Set mapAsMap: true to use object keys.`);
ctx.mapKeyWarned = true;
}
return strKey;
}
return JSON.stringify(jsKey);
}
export { addPairToJSMap };