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/* @flow */
import spacer from './spacer';
import formatTreeNode from './formatTreeNode';
import formatProp from './formatProp';
import mergeSiblingPlainStringChildrenReducer from './mergeSiblingPlainStringChildrenReducer';
import propNameSorter from './propNameSorter';
import type { Options } from './../options';
import type { ReactElementTreeNode } from './../tree';
const compensateMultilineStringElementIndentation = (
element,
formattedElement: string,
inline: boolean,
lvl: number,
options: Options
) => {
const { tabStop } = options;
if (element.type === 'string') {
return formattedElement
.split('\n')
.map((line, offset) => {
if (offset === 0) {
return line;
}
return `${spacer(lvl, tabStop)}${line}`;
})
.join('\n');
}
return formattedElement;
};
const formatOneChildren = (
inline: boolean,
lvl: number,
options: Options
) => element =>
compensateMultilineStringElementIndentation(
element,
formatTreeNode(element, inline, lvl, options),
inline,
lvl,
options
);
const onlyPropsWithOriginalValue = (defaultProps, props) => propName => {
const haveDefaultValue = Object.keys(defaultProps).includes(propName);
return (
!haveDefaultValue ||
(haveDefaultValue && defaultProps[propName] !== props[propName])
);
};
const isInlineAttributeTooLong = (
attributes: string[],
inlineAttributeString: string,
lvl: number,
tabStop: number,
maxInlineAttributesLineLength: ?number
): boolean => {
if (!maxInlineAttributesLineLength) {
return attributes.length > 1;
}
return (
spacer(lvl, tabStop).length + inlineAttributeString.length >
maxInlineAttributesLineLength
);
};
const shouldRenderMultilineAttr = (
attributes: string[],
inlineAttributeString: string,
containsMultilineAttr: boolean,
inline: boolean,
lvl: number,
tabStop: number,
maxInlineAttributesLineLength: ?number
): boolean =>
(isInlineAttributeTooLong(
attributes,
inlineAttributeString,
lvl,
tabStop,
maxInlineAttributesLineLength
) ||
containsMultilineAttr) &&
!inline;
export default (
node: ReactElementTreeNode,
inline: boolean,
lvl: number,
options: Options
): string => {
const {
type,
displayName = '',
childrens,
props = {},
defaultProps = {},
} = node;
if (type !== 'ReactElement') {
throw new Error(
`The "formatReactElementNode" function could only format node of type "ReactElement". Given: ${
type
}`
);
}
const {
filterProps,
maxInlineAttributesLineLength,
showDefaultProps,
sortProps,
tabStop,
} = options;
let out = `<${displayName}`;
let outInlineAttr = out;
let outMultilineAttr = out;
let containsMultilineAttr = false;
const visibleAttributeNames = [];
Object.keys(props)
.filter(propName => filterProps.indexOf(propName) === -1)
.filter(onlyPropsWithOriginalValue(defaultProps, props))
.forEach(propName => visibleAttributeNames.push(propName));
Object.keys(defaultProps)
.filter(defaultPropName => filterProps.indexOf(defaultPropName) === -1)
.filter(() => showDefaultProps)
.filter(defaultPropName => !visibleAttributeNames.includes(defaultPropName))
.forEach(defaultPropName => visibleAttributeNames.push(defaultPropName));
const attributes = visibleAttributeNames.sort(propNameSorter(sortProps));
attributes.forEach(attributeName => {
const {
attributeFormattedInline,
attributeFormattedMultiline,
isMultilineAttribute,
} = formatProp(
attributeName,
Object.keys(props).includes(attributeName),
props[attributeName],
Object.keys(defaultProps).includes(attributeName),
defaultProps[attributeName],
inline,
lvl,
options
);
if (isMultilineAttribute) {
containsMultilineAttr = true;
}
outInlineAttr += attributeFormattedInline;
outMultilineAttr += attributeFormattedMultiline;
});
outMultilineAttr += `\n${spacer(lvl, tabStop)}`;
if (
shouldRenderMultilineAttr(
attributes,
outInlineAttr,
containsMultilineAttr,
inline,
lvl,
tabStop,
maxInlineAttributesLineLength
)
) {
out = outMultilineAttr;
} else {
out = outInlineAttr;
}
if (childrens && childrens.length > 0) {
const newLvl = lvl + 1;
out += '>';
if (!inline) {
out += '\n';
out += spacer(newLvl, tabStop);
}
out += childrens
.reduce(mergeSiblingPlainStringChildrenReducer, [])
.map(formatOneChildren(inline, newLvl, options))
.join(!inline ? `\n${spacer(newLvl, tabStop)}` : '');
if (!inline) {
out += '\n';
out += spacer(newLvl - 1, tabStop);
}
out += `</${displayName}>`;
} else {
if (
!isInlineAttributeTooLong(
attributes,
outInlineAttr,
lvl,
tabStop,
maxInlineAttributesLineLength
)
) {
out += ' ';
}
out += '/>';
}
return out;
};
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