SDE Market Group Tree

Needs local SDE data

Walks the market group hierarchy recursively to display the full market category tree, optionally listing types in each leaf group.

Run it

git clone https://github.com/lgriffin/ESI.ts.git && cd ESI.ts
npm ci
npx ts-node scripts/sde/sde-ingest.ts --output sde-data
npm run example:sde-market-tree

examples/sde-market-tree.ts on GitHub. The imports below are written as a consumer of the package writes them; the file in the repository imports from ../src.

Source

import { SdeDataProvider } from '@lgriffin/esi.ts/sde';
import type { MarketGroup } from '@lgriffin/esi.ts/sde';
import { createConsoleLogger } from '@lgriffin/esi.ts';

// The program's own output. The client logs through the same console sink
// at ESI_LOG_LEVEL (default warn), so its diagnostics stay out of the way.
const log = createConsoleLogger('info');
const esiLog = createConsoleLogger();

function printTree(
  sde: ReturnType<typeof SdeDataProvider.fromDirectory>,
  group: MarketGroup,
  depth: number = 0,
  maxDepth: number = 3,
) {
  const indent = '  '.repeat(depth);
  const typeCount = group.hasTypes
    ? ` [${sde.getTypesByMarketGroup(group.marketGroupId).length} types]`
    : '';
  log.info(`${indent}- ${group.name} (${group.marketGroupId})${typeCount}`);

  if (depth >= maxDepth) return;

  const children = sde.getMarketGroupsByParent(group.marketGroupId);
  for (const child of children) {
    printTree(sde, child, depth + 1, maxDepth);
  }
}

function main() {
  const sde = SdeDataProvider.fromDirectory(
    process.env.SDE_DATA_PATH || './sde-data',
  );

  try {
    const roots = sde.getRootMarketGroups();
    log.info(`=== Market Group Tree (${roots.length} root categories) ===\n`);

    for (const root of roots) {
      printTree(sde, root);
    }

    // Search example
    log.info('\n--- Search: "Drone" market groups ---');
    const droneGroups = sde.searchMarketGroupsByName('Drone', 10);
    for (const g of droneGroups) {
      const parent = g.parentGroupId
        ? sde.getMarketGroup(g.parentGroupId)
        : null;
      log.info(`  ${g.name} (parent: ${parent?.name ?? 'root'})`);
    }
  } finally {
    sde.close();
  }
}

main();