#!/usr/bin/env bash
# schema_harvest.sh — extract Perspective component prop schemas from the running
# gateway's Perspective module into per-component JSON Schema files.
#
# Sources (verified on 8.3.7): perspective-common-<ver>.jar inside
# Perspective-module.modl carries ia.components.json (70 core components),
# perspective-amcharts.components.json (ia.chart.xy/pie/gauge/simple-gauge),
# perspective-timeseries.components.json, plus schemas/*.json (binding,
# transform, style, view-props, session-props schemas).
#
# Output layout:
#   <out>/components/<component-id>.schema.json   (the component's props JSON Schema)
#   <out>/schemas/<name>.json                     (binding/transform/etc. schemas)
#
# Usage: tools/schema_harvest.sh [output_dir]   (default: .schemas/)
set -euo pipefail
OUT="${1:-.schemas}"
TMP="$(mktemp -d)"
trap 'rm -rf "$TMP"' EXIT

docker cp buildathon-ignition:"/usr/local/bin/ignition/user-lib/modules/Perspective-module.modl" "$TMP/perspective.modl"

python3 - "$TMP" "$OUT" <<'EOF'
import json, os, sys, zipfile
tmp, out = sys.argv[1], sys.argv[2]
comp_dir = os.path.join(out, "components")
misc_dir = os.path.join(out, "schemas")
os.makedirs(comp_dir, exist_ok=True)
os.makedirs(misc_dir, exist_ok=True)

modl = zipfile.ZipFile(os.path.join(tmp, "perspective.modl"))
total = 0
for jar in [n for n in modl.namelist() if n.endswith(".jar")]:
    jp = os.path.join(tmp, os.path.basename(jar))
    open(jp, "wb").write(modl.read(jar))
    try:
        z = zipfile.ZipFile(jp)
    except zipfile.BadZipFile:
        continue
    for entry in z.namelist():
        if entry.endswith(".components.json") or entry == "ia.components.json":
            data = json.loads(z.read(entry))
            for comp in data.get("components", []):
                cid = comp.get("id")
                if not cid:
                    continue
                with open(os.path.join(comp_dir, cid + ".schema.json"), "w") as f:
                    json.dump(comp.get("schema", {}), f, indent=1)
                total += 1
        elif entry.startswith("schemas/") and entry.endswith(".json"):
            with open(os.path.join(misc_dir, os.path.basename(entry)), "wb") as f:
                f.write(z.read(entry))
print("extracted %d component schemas -> %s" % (total, comp_dir))
EOF
ls "$OUT/components" | wc -l