#!/usr/bin/env python3
"""Verify PyInstaller bundle TOC chua du app assets (app/static, app/templates).

Dung boi build_windows.ps1 (buoc 3.5/6) de bat loi bundle NGAY tai build:
  python tools/verify_bundle.py
Exit code 0 = OK, 1 = thieu asset.

Ly do ton tai: da gap 2 lan exe crash 'Directory ...\\app\\static does not exist'
vi chay pyinstaller tu noi khac -> datas relative khong resolve -> bo qua am tham.
"""
import glob
import os
import re
import sys

REQUIRED = ["app/static", "app/templates"]
# F4: bridge sidecar phai co truoc khi tauri build (externalBin). Kiem tra tai
# day de build fail SOM nhat (build_windows.ps1 goi verify nay truoc tauri build).
BRIDGE_SIDECAR = os.path.join(
    "src-tauri", "binaries", "daw_vst_bridge-x86_64-pc-windows-msvc.exe"
)


def find_toc(build_dir: str) -> str:
    # PyInstaller 6.x: build/engine/Analysis-00.toc (hoac *-00.toc khac)
    for pattern in (
        os.path.join(build_dir, "engine", "Analysis-00.toc"),
        os.path.join(build_dir, "engine", "*-00.toc"),
        os.path.join(build_dir, "**", "Analysis-00.toc"),
        os.path.join(build_dir, "**", "*-00.toc"),
    ):
        hits = glob.glob(pattern, recursive=True)
        if hits:
            return hits[0]
    return ""


def main() -> int:
    check_bridge = "--check-bridge" in sys.argv
    build_dir = os.path.abspath(os.path.join(os.path.dirname(__file__), "..", "build"))
    toc = find_toc(build_dir)
    if not toc:
        print(f"WARN: khong tim thay TOC trong {build_dir} - bo qua verify (tiep tuc build)")
        return 0
    print(f"Verify TOC: {toc}")
    with open(toc, "r", encoding="utf-8", errors="replace") as f:
        raw = f.read()
    # TOC Windows co the dung backslash (app\\static) — normalize het ve forward
    # slash de kiem tra khong bi false positive. TOC la Python literal nen
    # backslash bi DOUBLE-escape ('app\\\\static') — thay 2 lan (\\\\ truoc,
    # roi \\) de ca 2 dang deu ve '/'.
    text = raw.replace("\\\\", "/").replace("\\", "/")
    missing = []
    for req in REQUIRED:
        # Tim theo prefix thuc su trong TOC (vd 'app/static/js/...' hoac
        # string repr 'app/static/...' trong tuple DATA entry).
        if not re.search(re.escape(req) + r"(?=[/'\"]|$)", text):
            missing.append(req)
    if missing:
        print(f"ERROR: Bundle thieu: {', '.join(missing)}. Kiem tra engine.spec datas!")
        return 1
    print("OK: app/static + app/templates co trong bundle.")
    # F4: bridge sidecar (externalBin) — kiem tra o repo root (khong phai trong
    # PyInstaller bundle): thieu -> tauri build se im lang bo qua bridge.
    # Chi chay khi --check-bridge (goi o buoc [7/7] build_windows.ps1 — sau
    # khi da build bridge o buoc [5/7]).
    if check_bridge:
        repo_root = os.path.abspath(os.path.join(os.path.dirname(__file__), ".."))
        sidecar = os.path.join(repo_root, BRIDGE_SIDECAR)
        if not os.path.exists(sidecar):
            print(f"ERROR: Thieu bridge sidecar: {sidecar}")
            print("       Chay build/scripts/build_native_bridge.ps1 truoc, hoac")
            print("       build_windows.ps1 buoc [5/7] se build tu dong.")
            return 1
        print(f"OK: bridge sidecar co mat ({BRIDGE_SIDECAR}).")
    return 0


if __name__ == "__main__":
    sys.exit(main())