import os
import json
import zipfile
import datetime


def get_revenue_stats():
    """
    Returns a list of revenue and usage metrics for the past 7 days.
    Each entry includes date, revenue_usd, active_users, and subscriptions.
    """
    today = datetime.date.today()
    stats = []
    for i in range(7):
        dt = today - datetime.timedelta(days=i)
        stats.append({
            "date": dt.isoformat(),
            "revenue_usd": round(100 + i * 10, 2),
            "active_users": 50 + i * 5,
            "subscriptions": 10 + i
        })
    return stats


def package_artifacts(assets):
    """
    Packages generated app assets (blueprint and code files) into a zip archive
    stored under the persistent /data directory so artifacts appear in the Space UI.
    Returns the path to the zip file.
    """
    # Timestamped directory under persistent storage (/data)
    timestamp = datetime.datetime.now().strftime("%Y%m%d%H%M%S")
    base_dir = f"/data/artifacts_{timestamp}"
    os.makedirs(base_dir, exist_ok=True)

    # Save blueprint as JSON
    blueprint = assets.get("blueprint", {})
    bp_path = os.path.join(base_dir, "blueprint.json")
    with open(bp_path, "w") as f:
        json.dump(blueprint, f, indent=2)

    # Save each generated code file
    code_files = assets.get("code", {})
    for fname, content in code_files.items():
        file_path = os.path.join(base_dir, fname)
        os.makedirs(os.path.dirname(file_path), exist_ok=True)
        with open(file_path, "w") as f:
            f.write(content)

    # Create zip archive alongside the directory
    zip_path = f"{base_dir}.zip"
    with zipfile.ZipFile(zip_path, "w", zipfile.ZIP_DEFLATED) as zipf:
        for root, _, files in os.walk(base_dir):
            for file in files:
                full_path = os.path.join(root, file)
                rel_path = os.path.relpath(full_path, base_dir)
                zipf.write(full_path, arcname=rel_path)

    return zip_path