"""Build script: compile PaperDash server to a standalone .exe with system tray.

Usage:
    python build_exe.py          # Build in release mode
    python build_exe.py --debug  # Build in debug mode (with console)

Output: server/dist/PaperDash.exe
"""

from __future__ import annotations

import argparse
import os
import subprocess
import sys

SCRIPT_DIR = os.path.dirname(os.path.abspath(__file__))
DIST_DIR = os.path.join(SCRIPT_DIR, "dist")


def build(debug: bool = False) -> None:
    """Compile the server to an .exe using PyInstaller."""
    os.makedirs(DIST_DIR, exist_ok=True)

    # PyInstaller spec content — wraps the server with system tray
    spec_content = f'''
# -*- mode: python ; coding: utf-8 -*-
"""PyInstaller spec for PaperDash with system tray."""

import os
from pathlib import Path

block_cipher = None

a = Analysis(
    ["tray_wrapper.py"],
    pathex=[],
    binaries=[],
    datas=[
        ("settings.html", "."),
        ("settings.css", "."),
    ],
    hiddenimports=[
        "fastapi",
        "uvicorn",
        "pydantic",
        "pystray",
        "PIL",
        "audio_mixer",
        "media",
        "notifications",
        "telemetry",
        "main",
        "yaml",
    ],
    hookspath=[],
    hooksconfig={{}},
    runtime_hooks=[],
    excludes=[],
    win_no_prefer_redirects=False,
    win_private_assemblies=False,
    cipher=block_cipher,
    noarchive=False,
)

pyz = PYZ(a.pure, a.zipped_data, cipher=block_cipher)

exe = EXE(
    pyz,
    a.scripts,
    a.binaries,
    a.datas,
    [],
    name="PaperDash",
    debug={"True": True, "False": False}[str(debug)],
    bootloader_ignore_signals=False,
    strip=False,
    upx=True,
    upx_exclude=[],
    runtime_tmpdir=None,
    console=False if not debug else True,
    disable_windowed_traceback=False,
    argv_emulation=False,
    target_arch=None,
    codesign_identity=None,
    entitlements_file=None,
    icon=None,
    onefile=True,
)
'''

    spec_path = os.path.join(SCRIPT_DIR, "PaperDash.spec")
    with open(spec_path, "w") as f:
        f.write(spec_content)

    try:
        cmd = [
            sys.executable,
            "-m",
            "PyInstaller",
            spec_path,
            "--clean",
        ]
        if debug:
            cmd.append("--debug=all")

        print(f"Building PaperDash.exe (debug={debug})...")
        print(f"  Spec: {spec_path}")
        print(f"  Output: {DIST_DIR}/PaperDash.exe")
        print()

        subprocess.run(cmd, check=True)

        exe_path = os.path.join(DIST_DIR, "PaperDash.exe")
        if os.path.exists(exe_path):
            size_mb = os.path.getsize(exe_path) / (1024 * 1024)
            print(f"\nBuild complete: {exe_path} ({size_mb:.1f} MB)")
        else:
            print("\nBuild completed but .exe not found in dist/")

    except subprocess.CalledProcessError as e:
        print(f"\nBuild failed: {e}", file=sys.stderr)
        sys.exit(1)
    finally:
        # Clean up spec file
        if os.path.exists(spec_path):
            os.remove(spec_path)


if __name__ == "__main__":
    parser = argparse.ArgumentParser(description="Build PaperDash .exe")
    parser.add_argument("--debug", action="store_true", help="Build with debug console")
    args = parser.parse_args()
    build(debug=args.debug)