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

cd "$(dirname "$0")"

# LinuxCNC source basis: this guard ties browser OPFS parameter persistence to
# interp_internal.hh defaults and rs274ngc_pre.cc restore_parameters() /
# save_parameters() file semantics. It validates bridge policy only; it does not
# add CNC behavior or expand smoke parsing.
linuxcnc_root=${LINUXCNC_ROOT:-../linuxcnc}
linuxcnc_root=$(cd "$linuxcnc_root" && pwd)

grep -F '#define RS274NGC_PARAMETER_FILE_NAME_DEFAULT "rs274ngc.var"' \
    "$linuxcnc_root/src/emc/rs274ngc/interp_internal.hh" >/dev/null
grep -F '#define RS274NGC_PARAMETER_FILE_BACKUP_SUFFIX ".bak"' \
    "$linuxcnc_root/src/emc/rs274ngc/interp_internal.hh" >/dev/null
grep -F 'int Interp::restore_parameters(const char *filename)' \
    "$linuxcnc_root/src/emc/rs274ngc/rs274ngc_pre.cc" >/dev/null
grep -F 'int Interp::save_parameters(const char *filename,' \
    "$linuxcnc_root/src/emc/rs274ngc/rs274ngc_pre.cc" >/dev/null
grep -F 'std::string tempfile = std::string(filename) + ".new";' \
    "$linuxcnc_root/src/emc/rs274ngc/rs274ngc_pre.cc" >/dev/null
grep -F '+ RS274NGC_PARAMETER_FILE_BACKUP_SUFFIX;' \
    "$linuxcnc_root/src/emc/rs274ngc/rs274ngc_pre.cc" >/dev/null
grep -F 'unlink(bakfile.c_str());' \
    "$linuxcnc_root/src/emc/rs274ngc/rs274ngc_pre.cc" >/dev/null
grep -F 'if(link(filename, bakfile.c_str()) < 0)' \
    "$linuxcnc_root/src/emc/rs274ngc/rs274ngc_pre.cc" >/dev/null
grep -F 'if(rename(tempfile.c_str(), filename) < 0)' \
    "$linuxcnc_root/src/emc/rs274ngc/rs274ngc_pre.cc" >/dev/null

grep -F 'RS274NGC_PARAMETER_FILE_NAME_DEFAULT` as `rs274ngc.var`' \
    docs/linuxcnc-opfs-source-map.md >/dev/null
grep -F 'RS274NGC_PARAMETER_FILE_BACKUP_SUFFIX` as `.bak`' \
    docs/linuxcnc-opfs-source-map.md >/dev/null
grep -F '`Interp::restore_parameters()` for parameter-file reads' \
    docs/linuxcnc-opfs-source-map.md >/dev/null
grep -F '`Interp::save_parameters()` for `filename + ".new"`' \
    docs/linuxcnc-opfs-source-map.md >/dev/null
grep -F 'unlinks `filename + ".bak"`, links the' \
    docs/linuxcnc-opfs-source-map.md >/dev/null
grep -F 'must not add independent filesystem behavior or expand the temporary smoke parser' \
    docs/linuxcnc-opfs-source-map.md >/dev/null
grep -F 'parseFileWithParameterFile()' docs/linuxcnc-opfs-source-map.md >/dev/null
grep -F 'OPFS Coverage' docs/linuxcnc-opfs-source-map.md >/dev/null
grep -F '| `web/src/wasm-core.js` |' docs/linuxcnc-opfs-source-map.md >/dev/null
grep -F '| `web/src/wasm-core.d.ts` |' docs/linuxcnc-opfs-source-map.md >/dev/null
grep -F '| `web/src/app.js` |' docs/linuxcnc-opfs-source-map.md >/dev/null
grep -F '| `web/test-browser-wasm-smoke-opfs-basic-sections.js` |' docs/linuxcnc-opfs-source-map.md >/dev/null
grep -F '| `web/test-browser-wasm-smoke-opfs-parameter-sections.js` |' docs/linuxcnc-opfs-source-map.md >/dev/null
grep -F '| `web/test-browser-wasm-smoke-opfs-workspace-sections.js` |' docs/linuxcnc-opfs-source-map.md >/dev/null
grep -F '| `web/test-browser-wasm-smoke-opfs-mirror-sections.js` |' docs/linuxcnc-opfs-source-map.md >/dev/null
grep -F '| `web/test-browser-wasm-smoke-opfs-directory-sections.js` |' docs/linuxcnc-opfs-source-map.md >/dev/null
grep -F '| `web/test-browser-wasm-smoke-opfs-policy-sections.js` |' docs/linuxcnc-opfs-source-map.md >/dev/null
grep -F '| `web/test-browser-wasm-smoke-app-sections.js` |' docs/linuxcnc-opfs-source-map.md >/dev/null

grep -F 'const LINUXCNC_DEFAULT_PARAMETER_FILE = "rs274ngc.var";' web/src/wasm-core.js >/dev/null
grep -F '`${LINUXCNC_DEFAULT_PARAMETER_FILE}.new`' web/src/wasm-core.js >/dev/null
grep -F '`${LINUXCNC_DEFAULT_PARAMETER_FILE}.bak`' web/src/wasm-core.js >/dev/null
grep -F 'LinuxCNC source basis: rs274ngc_pre.cc restore_parameters() reads the' web/src/wasm-core.js >/dev/null
grep -F 'before replacing the main file and managing filename + ".bak".' web/src/wasm-core.js >/dev/null
grep -F 'app frame did not clean up LinuxCNC temporary parameter file in OPFS' \
    web/test-browser-wasm-smoke-app-sections.js >/dev/null
grep -F 'OPFS cannot be disabled in browser contexts with OPFS support' web/src/wasm-core.js >/dev/null
grep -F 'OPFS path must stay inside the CNC workspace' web/src/wasm-core.js >/dev/null
grep -F 'OPFS mount point must stay inside the Emscripten filesystem' web/src/wasm-core.js >/dev/null
grep -F 'async persistDirectory(path)' web/src/wasm-core.js >/dev/null
grep -F 'async readDirectory(path)' web/src/wasm-core.js >/dev/null
grep -F 'export type WasmOpfsWorkspace = {' web/src/wasm-core.d.ts >/dev/null
grep -F 'readDirectory(path: string): Promise<string[]>;' web/src/wasm-core.d.ts >/dev/null
grep -F 'persistDirectory(path: string): Promise<string[]>;' web/src/wasm-core.d.ts >/dev/null
grep -F 'loadParameterFile(path: string): Promise<Uint8Array | null>;' web/src/wasm-core.d.ts >/dev/null
grep -F 'persistParameterFile(path: string): Promise<Uint8Array>;' web/src/wasm-core.d.ts >/dev/null
grep -F 'opfs?: false | {' web/src/wasm-core.d.ts >/dev/null
grep -F 'mountPoint?: string;' web/src/wasm-core.d.ts >/dev/null
grep -F 'workspacePath?: string;' web/src/wasm-core.d.ts >/dev/null
grep -F 'const events = await simulator.parseFileWithParameterFile(programPath, parameterPath, "linuxcnc", parseOptions);' \
    web/src/app.js >/dev/null
grep -F 'OPFS workspace is required for browser program parsing' web/src/app.js >/dev/null
grep -F 'runBrowserOpfsBasicSections(context, simulator)' \
    web/test-browser-wasm-smoke-opfs-workspace-sections.js >/dev/null
grep -F 'runBrowserOpfsParameterSections(context, simulator)' \
    web/test-browser-wasm-smoke-opfs-workspace-sections.js >/dev/null
grep -F 'runBrowserOpfsMirrorSections(context, simulator)' \
    web/test-browser-wasm-smoke-opfs-workspace-sections.js >/dev/null
grep -F 'runBrowserOpfsDirectorySections(context, simulator)' \
    web/test-browser-wasm-smoke-opfs-workspace-sections.js >/dev/null
grep -F 'runBrowserOpfsPolicySections(context)' web/test-browser-wasm-smoke-sections.js >/dev/null
grep -F 'runSection("opfs directory persist and load"' \
    web/test-browser-wasm-smoke-opfs-directory-sections.js >/dev/null
grep -F 'runSection("opfs metadata queries avoid wasm mirror pollution"' \
    web/test-browser-wasm-smoke-opfs-directory-sections.js >/dev/null
grep -F 'runSection("browser opfs policy"' \
    web/test-browser-wasm-smoke-opfs-policy-sections.js >/dev/null
grep -F 'runSection("opfs parameter restore in new instance"' test-web-wasm-browser-smoke.sh >/dev/null
grep -F 'runSection("opfs invalid parameter restore failures"' test-web-wasm-browser-smoke.sh >/dev/null
grep -F 'runSection("opfs stale parameter state cleanup"' test-web-wasm-browser-smoke.sh >/dev/null
grep -F 'runSection("opfs program parse and restore"' test-web-wasm-browser-smoke.sh >/dev/null
grep -F 'runSection("browser app opfs restore"' test-web-wasm-browser-smoke.sh >/dev/null

if grep -R -n -E 'localStorage|sessionStorage|indexedDB|showOpenFilePicker|showSaveFilePicker|showDirectoryPicker|webkitRequestFileSystem|FileReader' web/src; then
    echo "browser app/wasm code must not add filesystem persistence outside OPFS" >&2
    exit 1
fi

python3 - <<'PY'
from pathlib import Path

source_map = Path("docs/linuxcnc-opfs-source-map.md").read_text(encoding="utf-8")
coverage_entries = [
    "web/src/wasm-core.js",
    "web/src/wasm-core.d.ts",
    "web/src/app.js",
    "web/test-browser-wasm-smoke-opfs-basic-sections.js",
    "web/test-browser-wasm-smoke-opfs-parameter-sections.js",
    "web/test-browser-wasm-smoke-opfs-workspace-sections.js",
    "web/test-browser-wasm-smoke-opfs-mirror-sections.js",
    "web/test-browser-wasm-smoke-opfs-directory-sections.js",
    "web/test-browser-wasm-smoke-opfs-policy-sections.js",
    "web/test-browser-wasm-smoke-app-sections.js",
]
for entry in coverage_entries:
    if f"| `{entry}` |" not in source_map:
        raise SystemExit(f"docs/linuxcnc-opfs-source-map.md missing OPFS coverage entry: {entry}")

required_phrases = [
    "programs/current.ngc",
    "parameters/rs274ngc.var",
    "LinuxCNC `read_text()`",
    "`.new`, `.bak`, failure, and stale-state semantics",
    'unlinks `filename + ".bak"`',
    "OPFS/WASM mirror persistence",
    "OPFS directory persistence and WASM mirror refresh",
    "OPFS workspace and mount policy",
    "OPFS-backed workspace, directory, parameter-file, and mount/workspace option types",
    "app-level OPFS program, parameter, backup, and reload behavior",
]
for phrase in required_phrases:
    if phrase not in source_map:
        raise SystemExit(f"docs/linuxcnc-opfs-source-map.md missing OPFS coverage phrase: {phrase}")
PY