mobile-optimizer

#!/usr/bin/env node
const GeoPackageOptimizer = require('./index.js');
const fs = require('fs');
const {GeoPackageAPI, setCanvasKitWasmLocateFile} = require('@ngageoint/geopackage');
const path = require('path');

setCanvasKitWasmLocateFile(file => path.join(__dirname, 'node_modules', '@ngageoint', 'geopackage', 'dist', 'canvaskit', file));

console.log('GeoPackage Optimizer For Mobile Clients');

const geoPackageFile = process.argv[2];
const outputGeoPackageFile = process.argv[3];

if (!geoPackageFile || !outputGeoPackageFile) {
  console.log('Usage: mobile-optimizer <GeoPackage To Process> <GeoPackage To Write>');
  console.log('If <GeoPackage To Process> and <GeoPackage To Write> are the same, the GeoPackage To Process');
  console.log('will be modified.');
  process.exit(1);
}

const same = outputGeoPackageFile === geoPackageFile;

fs.stat(geoPackageFile, function(err, stats) {
  if (err || !stats || !stats.isFile()) {
    console.log('File does not exist.', geoPackageFile);
    process.exit(1);
  }
  return GeoPackageAPI.open(geoPackageFile)
    .then(function(inputGeoPackage) {
      console.log('Processing %s', geoPackageFile);
      if (same) {
        return GeoPackageAPI.open(outputGeoPackageFile).then(function(outputGeoPackage) {
          return {
            inputGeoPackage: inputGeoPackage,
            outputGeoPackage: outputGeoPackage,
          };
        });
      }
      return GeoPackageAPI.create(outputGeoPackageFile).then(function(outputGeoPackage) {
        return {
          inputGeoPackage: inputGeoPackage,
          outputGeoPackage: outputGeoPackage,
        };
      });
    })
    .then(function(options) {
      const outputGeoPackage = options.outputGeoPackage;
      const inputGeoPackage = options.inputGeoPackage;

      console.log('Writing mobile optimized GeoPackage to %s', outputGeoPackageFile);
      return GeoPackageOptimizer.optimize({
        inputGeoPackage: inputGeoPackage,
        outputGeoPackage: outputGeoPackage,
        same: same,
        progress: function(progress) {
          console.log(progress)
          if (progress.description) {
            console.log('Processing %s: %s', progress.layer, progress.description);
          } else {
            console.log('Processing %s: %s of %s tiles complete.', progress.layer, progress.count, progress.totalCount);
          }
        },
      }).then(function() {
        console.log('Optimization Complete, optimized file: %s', outputGeoPackageFile);
        process.exit(0);
      });
    });
});