#!/usr/bin/env bash
set -euo pipefail

cd "$(dirname "$0")"

# LinuxCNC source basis: this guard keeps the local source map aligned with the
# LinuxCNC-root relative rs274 manifests that drive native and WASM source-link
# probes. It validates documentation/manifest drift only; it does not interpret
# CNC behavior.
python3 - <<'PY'
from pathlib import Path

source_map = Path("docs/linuxcnc-rs274-source-map.md").read_text(encoding="utf-8")
native_manifest = Path("linuxcnc-rs274-source-files.txt").read_text(encoding="utf-8").splitlines()
wasm_manifest = Path("linuxcnc-rs274-wasm-source-files.txt").read_text(encoding="utf-8").splitlines()

expected = {
    "### Interpreter core": [
        Path(line.split(":", 2)[1]).name
        for line in native_manifest
        if line.startswith("core:")
    ],
    "### Python binding modules": [
        Path(line.split(":", 2)[1]).name
        for line in native_manifest
        if line.startswith("binding:")
    ],
    "### WASM-safe source core": [
        line.split(":", 2)[1]
        for line in wasm_manifest
        if line.startswith("core:")
    ],
    "### WASM-blocked sources": [
        line.split(":", 2)[1]
        for line in wasm_manifest
        if line.startswith("blocked:")
    ],
    "### WASM-tracked headers": [
        line.split(":", 2)[1]
        for line in wasm_manifest
        if line.startswith("header:")
    ],
    "### WASM-blocked headers": [
        line.split(":", 2)[1]
        for line in wasm_manifest
        if line.startswith("blocked-header:")
    ],
    "### WASM metadata sources": [
        line.split(":", 2)[1]
        for line in wasm_manifest
        if line.startswith("metadata:")
    ],
}

actual = {section: [] for section in expected}
active_section = None
for line in source_map.splitlines():
    if line in expected:
        active_section = line
        continue
    if active_section and line.startswith("### "):
        active_section = None
    if active_section and line.startswith("- `"):
        actual[active_section].append(line.split("`", 2)[1])

labels = {
    "### Interpreter core": "interpreter core",
    "### Python binding modules": "Python binding module",
    "### WASM-safe source core": "WASM-safe source core",
    "### WASM-blocked sources": "WASM-blocked source",
    "### WASM-tracked headers": "WASM-tracked header",
    "### WASM-blocked headers": "WASM-blocked header",
    "### WASM metadata sources": "WASM metadata source",
}
for section, expected_entries in expected.items():
    if actual[section] != expected_entries:
        raise SystemExit(
            f"docs/linuxcnc-rs274-source-map.md {labels[section]} list no longer matches source manifest"
        )
PY