#!/usr/bin/env node

const load = require('load-json-file');
const write = require('write-json-file');
const path = require('path');
const glob = require('glob');

// Update package.json
glob.sync(path.join(__dirname, '..', 'packages', 'turf-*', 'package.json')).forEach(packagePath => {
    const pckg = load.sync(packagePath);
    pckg.dependencies = updateDependencies(pckg);
    pckg.devDependencies = updateDevDependencies(pckg);
    write.sync(packagePath, pckg, {indent: 2});
});

function entries(obj) {
    return Object.keys(obj || {}).map(key => [key, obj[key]]);
}

function updateDependencies(pckg) {
    const dependencies = {};
    new Map(entries(pckg.dependencies))
        .forEach((version, name) => {
            // Update dependencies to v5.x
            switch (name) {
            case 'geojson-rbush':
                dependencies[name] = '2.1.0';
                break;
            case 'topojson-client':
            case 'topojson-server':
                dependencies[name] = '3.x';
                break;
            // JSTS based modules:
            case '@turf/buffer':
            case '@turf/intersect':
            case '@turf/union':
            case '@turf/difference':
            case '@turf/dissolve':
            case '@turf/hex-grid':
            case '@turf/mask':
            case '@turf/square-grid':
            case '@turf/triangle-grid':
            case '@turf/interpolate':
                dependencies[name] = '*';
                break;
            case 'jsts':
            case 'jsts-es':
            case '@turf/point-on-surface':
            case '@turf/line-distance':
            case '@turf/point-on-line':
            case '@turf/nearest':
                throw new Error(`${pckg.name} module has invalid dependency ${name}`);
            default:
                dependencies[name] = version;
            }
        });
    // All modules will have helpers to handle the internal TypeScript definitions
    if (pckg.name !== '@turf/helpers') dependencies['@turf/helpers'] = '^5.0.4';
    return dependencies;
}

function updateDevDependencies(pckg) {
    const devDependencies = {};
    const dev = new Map(entries(pckg.devDependencies));
    dev.delete('rollup-plugin-uglify');
    dev.delete('uglify-js');
    dev.delete('@turf/helpers');
    dev.set('rollup', '*')
        .set('tape', '*')
        .set('@std/esm', '*')
        .set('benchmark', '*').forEach((version, name) => {
            devDependencies[name] = '*';
        });
    return devDependencies;
}