# WJ classic-ASP import loader (reference implementation)

This is **site-specific reference glue**, not product code. It maps West
Jefferson's classic-ASP `shopdb` / `cmmc_usb` / `wjf_employees` schema onto the
maintained, schema-agnostic import contract in `docs/IMPORT-API.md`.

**Every adopting site has its own source database.** Nobody else runs this
loader. Instead, copy the pattern:

1. Point the harness at your source DB(s) (edit `harness.Source`).
2. Write per-entity stages that read your tables and POST to the same
   `docs/IMPORT-API.md` endpoints with `Authorization: Bearer <admin PAT>` and
   `X-Import-Mode: true`.
3. Persist legacy-id -> new-id crosswalks (see `harness.IdMap`) so later stages
   resolve foreign keys and a crashed run resumes.

The import API is the stable contract; loaders are per-site. The mapping itself
is the bulk of the work: enumerate the source tables against this contract and
write one stage per entity (this loader is the worked example).

## Running (against a THROWAWAY import database)

```bash
DATABASE_URL='mysql+pymysql://root:PW@127.0.0.1:3306/shopdb_flask_import?charset=utf8mb4' \
  venv/bin/python -m scripts.site_imports.wjf.run --stages reference,employees
```

Prereqs: a fresh target DB built with `flask db upgrade` + `flask plugin
upgrade-all` + `flask seed permissions/settings/reference-data`, and the three
source dumps loaded into scratch DBs (`shopdb_src`, `cmmc_usb_src`,
`wjf_employees_src`). See `scratchpad/IMPORT-PLAN.md` for the full mapping,
resolved decisions, and remaining stages.

## Status

Complete - all 15 stages built and verified end-to-end against a fresh scratch
target (zero endpoint errors): `reference`, `employees`, `catalog`, `assets`
(the hub + machineid->assetid crosswalk), `locations`, `printers`,
`communications`, `applications` (+ installs), `warranties`, `notifications`,
`knowledgebase`, `relationships`, `subnets`, `usb`, `verify`.

Last full run: 983 assets (computer 663, machine 76, network 58, measuring-tool
136, printer 50), 24 locations, 415 employees, 850 installs, 461 primary IPs,
464 warranties, 261 notifications, 341 KB, 93 relationships, 37 subnets, 18 USB
devices + 232 events. UI spot-check passed (computer list + shop-floor map).

Known follow-ups: general asset `locationid` is null (no source column outside
printers); the ~146 duplicate machinenumbers are first-wins-skipped by decision.
