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import { isCollection, isNode, isScalar, isSeq } from '../nodes/identity.js';
import { Scalar } from '../nodes/Scalar.js';
import { stringify } from './stringify.js';
import { lineComment, indentComment } from './stringifyComment.js';
function stringifyPair({ key, value }, ctx, onComment, onChompKeep) {
const { allNullValues, doc, indent, indentStep, options: { commentString, indentSeq, simpleKeys } } = ctx;
let keyComment = (isNode(key) && key.comment) || null;
if (simpleKeys) {
if (keyComment) {
throw new Error('With simple keys, key nodes cannot have comments');
}
if (isCollection(key)) {
const msg = 'With simple keys, collection cannot be used as a key value';
throw new Error(msg);
}
}
let explicitKey = !simpleKeys &&
(!key ||
(keyComment && value == null && !ctx.inFlow) ||
isCollection(key) ||
(isScalar(key)
? key.type === Scalar.BLOCK_FOLDED || key.type === Scalar.BLOCK_LITERAL
: typeof key === 'object'));
ctx = Object.assign({}, ctx, {
allNullValues: false,
implicitKey: !explicitKey && (simpleKeys || !allNullValues),
indent: indent + indentStep
});
let keyCommentDone = false;
let chompKeep = false;
let str = stringify(key, ctx, () => (keyCommentDone = true), () => (chompKeep = true));
if (!explicitKey && !ctx.inFlow && str.length > 1024) {
if (simpleKeys)
throw new Error('With simple keys, single line scalar must not span more than 1024 characters');
explicitKey = true;
}
if (ctx.inFlow) {
if (allNullValues || value == null) {
if (keyCommentDone && onComment)
onComment();
return str === '' ? '?' : explicitKey ? `? ${str}` : str;
}
}
else if ((allNullValues && !simpleKeys) || (value == null && explicitKey)) {
str = `? ${str}`;
if (keyComment && !keyCommentDone) {
str += lineComment(str, ctx.indent, commentString(keyComment));
}
else if (chompKeep && onChompKeep)
onChompKeep();
return str;
}
if (keyCommentDone)
keyComment = null;
if (explicitKey) {
if (keyComment)
str += lineComment(str, ctx.indent, commentString(keyComment));
str = `? ${str}\n${indent}:`;
}
else {
str = `${str}:`;
if (keyComment)
str += lineComment(str, ctx.indent, commentString(keyComment));
}
let vsb, vcb, valueComment;
if (isNode(value)) {
vsb = !!value.spaceBefore;
vcb = value.commentBefore;
valueComment = value.comment;
}
else {
vsb = false;
vcb = null;
valueComment = null;
if (value && typeof value === 'object')
value = doc.createNode(value);
}
ctx.implicitKey = false;
if (!explicitKey && !keyComment && isScalar(value))
ctx.indentAtStart = str.length + 1;
chompKeep = false;
if (!indentSeq &&
indentStep.length >= 2 &&
!ctx.inFlow &&
!explicitKey &&
isSeq(value) &&
!value.flow &&
!value.tag &&
!value.anchor) {
// If indentSeq === false, consider '- ' as part of indentation where possible
ctx.indent = ctx.indent.substring(2);
}
let valueCommentDone = false;
const valueStr = stringify(value, ctx, () => (valueCommentDone = true), () => (chompKeep = true));
let ws = ' ';
if (keyComment || vsb || vcb) {
ws = vsb ? '\n' : '';
if (vcb) {
const cs = commentString(vcb);
ws += `\n${indentComment(cs, ctx.indent)}`;
}
if (valueStr === '' && !ctx.inFlow) {
if (ws === '\n')
ws = '\n\n';
}
else {
ws += `\n${ctx.indent}`;
}
}
else if (!explicitKey && isCollection(value)) {
const vs0 = valueStr[0];
const nl0 = valueStr.indexOf('\n');
const hasNewline = nl0 !== -1;
const flow = ctx.inFlow ?? value.flow ?? value.items.length === 0;
if (hasNewline || !flow) {
let hasPropsLine = false;
if (hasNewline && (vs0 === '&' || vs0 === '!')) {
let sp0 = valueStr.indexOf(' ');
if (vs0 === '&' &&
sp0 !== -1 &&
sp0 < nl0 &&
valueStr[sp0 + 1] === '!') {
sp0 = valueStr.indexOf(' ', sp0 + 1);
}
if (sp0 === -1 || nl0 < sp0)
hasPropsLine = true;
}
if (!hasPropsLine)
ws = `\n${ctx.indent}`;
}
}
else if (valueStr === '' || valueStr[0] === '\n') {
ws = '';
}
str += ws + valueStr;
if (ctx.inFlow) {
if (valueCommentDone && onComment)
onComment();
}
else if (valueComment && !valueCommentDone) {
str += lineComment(str, ctx.indent, commentString(valueComment));
}
else if (chompKeep && onChompKeep) {
onChompKeep();
}
return str;
}
export { stringifyPair };
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