"""Upload a MoonWell Launcher installer to S3-compatible storage.

Release metadata is supplied by ``deploy_launcher.ps1`` through environment
variables. A real Python file avoids Windows PowerShell quoting problems that
occur when a multiline program is passed to ``python -c``.
"""

from __future__ import annotations

import os
from pathlib import Path

import boto3
from botocore.config import Config


def required_environment_value(name: str) -> str:
    value = os.environ.get(name, "").strip()
    if not value:
        raise RuntimeError(f"Required environment variable is missing: {name}")
    return value


release_file = Path(required_environment_value("MOONWELL_RELEASE_FILE"))
endpoint = required_environment_value("MOONWELL_RELEASE_ENDPOINT")
bucket = required_environment_value("MOONWELL_RELEASE_BUCKET")
object_key = required_environment_value("MOONWELL_RELEASE_KEY")
version = required_environment_value("MOONWELL_RELEASE_VERSION")
sha256 = required_environment_value("MOONWELL_RELEASE_SHA256")

if not release_file.is_file():
    raise FileNotFoundError(f"Installer does not exist: {release_file}")

path_style = os.getenv("AWS_USE_PATH_STYLE_ENDPOINT", "true").lower()
addressing_style = (
    "path" if path_style in ("1", "true", "yes") else "virtual"
)
s3 = boto3.client(
    "s3",
    endpoint_url=endpoint,
    region_name=os.getenv("AWS_DEFAULT_REGION", "ru-central1"),
    config=Config(s3={"addressing_style": addressing_style}),
)

s3.upload_file(
    str(release_file),
    bucket,
    object_key,
    ExtraArgs={
        "ACL": "public-read",
        "ContentType": "application/x-msdownload",
        "CacheControl": "no-cache, max-age=0",
        "Metadata": {
            "launcher-version": version,
            "sha256": sha256,
        },
    },
)

response = s3.head_object(Bucket=bucket, Key=object_key)
local_size = release_file.stat().st_size
remote_size = int(response["ContentLength"])
if remote_size != local_size:
    raise RuntimeError(
        f"Uploaded object size mismatch: local={local_size}, "
        f"remote={remote_size}"
    )

print("S3_VERSION_ID=" + str(response.get("VersionId", "")))
print("S3_CONTENT_LENGTH=" + str(remote_size))