@tduyng/prettyoutput/lib/esm/index.js

Library to format JSON objects into a colorful, YAML-style output. Ideal for pretty printing logs with high performance.

import { indentString, renderDash, renderMaxDepth, renderMaxDepthArrayValue, renderMaxDepthObjectValue, renderMultilineString, renderObjectErrorStack, renderObjectKey, renderSerializable, renderSerializableArrayValue, renderSerializableObjectValue, } from './renderer.js';
import { indent, isSerializable, maxLength } from './utils.js';
const defaultStack = (input) => ({
    input,
    noRender: true,
    indentation: '',
    depth: 0,
});
const parseOptions = (opts = {}) => {
    const optsColors = opts.colors || {};
    const color = {
        keys: optsColors.keys || 'green',
        dash: optsColors.dash || 'green',
        number: optsColors.number || 'blue',
        string: optsColors.string,
        true: optsColors.true || 'green',
        false: optsColors.false || 'red',
        null: optsColors.null || 'grey',
        undefined: optsColors.undefined || 'grey',
    };
    return {
        indentation: indent(opts.indentationLength || 2),
        maxDepth: opts.maxDepth ?? 3,
        colors: !opts.noColor ? color : undefined,
        alignKeyValues: opts.alignKeyValues !== false,
        hideUndefined: opts.hideUndefined ?? false,
    };
};
const prettyOutput = (input, opts, indentLevel = 0) => {
    const options = parseOptions(opts);
    const stack = [{ indentation: indent(indentLevel), depth: 0, input }];
    let output = '';
    while (stack.length > 0) {
        const item = stack.pop();
        if (!item)
            continue;
        const { indentation, depth, input, noRender } = item;
        if (noRender) {
            output += input;
            continue;
        }
        if (depth > options.maxDepth) {
            output += renderMaxDepth(indentation);
            continue;
        }
        if (isSerializable(input)) {
            output += renderSerializable(input, options, indentation);
            continue;
        }
        if (typeof input === 'string') {
            output += renderMultilineString(input, options, indentation);
            continue;
        }
        if (Array.isArray(input)) {
            handleArrayRendering(input, options, stack, indentation, depth);
            continue;
        }
        if (typeof input === 'object' && input !== null) {
            handleObjectRendering(input, options, stack, indentation, depth);
        }
    }
    return output;
};
const handleArrayRendering = (input, options, stack, indentation, depth) => {
    for (let i = input.length - 1; i >= 0; i--) {
        const value = input[i];
        if (isSerializable(value)) {
            stack.push(defaultStack(renderSerializableArrayValue(value, options, indentation)));
            continue;
        }
        if (depth + 1 > options.maxDepth) {
            stack.push(defaultStack(renderMaxDepthArrayValue(options, indentation)));
            continue;
        }
        stack.push({
            input: value,
            indentation: indentString(indentation, options),
            depth: depth + 1,
        });
        stack.push(defaultStack(`${renderDash(options, indentation)}\n`));
    }
};
const handleObjectRendering = (input, options, stack, indentation, depth) => {
    const keys = Object.getOwnPropertyNames(input);
    const valueColumn = options.alignKeyValues ? maxLength(keys) : 0;
    for (let i = keys.length - 1; i >= 0; i--) {
        const key = keys[i];
        if (!key)
            continue;
        const value = input[key];
        if (input instanceof Error && key === 'stack') {
            stack.push(defaultStack(renderObjectErrorStack(key, value, options, indentation)));
            continue;
        }
        if (isSerializable(value)) {
            const result = renderSerializableObjectValue(key, value, valueColumn, options, indentation);
            if (result !== undefined)
                stack.push(defaultStack(result));
            continue;
        }
        if (depth + 1 > options.maxDepth) {
            stack.push(defaultStack(renderMaxDepthObjectValue(key, valueColumn, options, indentation)));
            continue;
        }
        stack.push({
            input: value,
            depth: depth + 1,
            indentation: indentString(indentation, options),
        });
        stack.push(defaultStack(`${renderObjectKey(key, options, indentation)}\n`));
    }
};
export default prettyOutput;
export { prettyOutput, prettyOutput as prettyoutput };
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