#!/usr/bin/env python3
""" A simple script which updates paths for .coverage executed
in another directory. This is particularly useful for fixing
.coverage files received via ./cache/.coverage after Docker runs.

Copyright (C) 2021 aurweb Development
All Rights Reserved.
"""
import os
import re
import sqlite3
import sys
import traceback

import aurweb.config


def eprint(*args, **kwargs):
    print(*args, **kwargs, file=sys.stderr)


def main():
    if len(sys.argv) == 1:
        print(f"usage: {sys.argv[0]} .coverage")
        return 1

    coverage_db = sys.argv[1]
    if not os.path.exists(coverage_db):
        eprint("error: coverage file not found")
        return 2

    aurwebdir = aurweb.config.get("options", "aurwebdir")
    new_coverage_db = os.path.join(aurwebdir, ".coverage")
    with open(coverage_db, "rb") as i:
        with open(new_coverage_db, "wb") as f:
            f.write(i.read())
        print(f"Copied coverage db to {new_coverage_db}.")
    coverage_db = new_coverage_db

    sqlite3.paramstyle = "format"
    db = sqlite3.connect(coverage_db)

    cursor = db.cursor()
    results = cursor.execute("SELECT * FROM file")

    files = dict()
    for i, path in results:
        files[i] = path

    for _, i in enumerate(files.keys()):
        new_path = re.sub(r"^/aurweb", aurwebdir, files[i])
        cursor.execute("UPDATE file SET path = ? WHERE id = ?", (new_path, i))

    db.commit()
    db.close()

    return 0


if __name__ == "__main__":
    e = 1
    try:
        e = main()
    except Exception:
        traceback.print_exc()
        e = 1
    sys.exit(e)