"""Module to cache data to MariaDB."""

import os
import yaml
import mysql.connector
from mysql.connector import Error


def get_db_config():
    """Get the database configuration for MariaDB."""
    with open(
        os.path.join(os.getcwd(), "configs", "config.yaml"), "r", encoding="utf-8"
    ) as file:
        config = yaml.safe_load(file)
    db_config = {
        "host": f'{config["mariadb"]["host"]}',
        "user": f'{config["mariadb"]["user"]}',
        "password": f'{config["mariadb"]["password"]}',
        "database": f'{config["mariadb"]["database"]}',
    }
    return db_config


def create_database():
    """Create the database for MariaDB."""
    try:
        with mysql.connector.connect(**get_db_config()) as conn:
            cursor = conn.cursor()
            cursor.execute(
                """
            CREATE TABLE IF NOT EXISTS licenses (
                SERVICE VARCHAR(255),
                PSSH TEXT,
                KID VARCHAR(255) PRIMARY KEY,
                `Key` TEXT,
                License_URL TEXT,
                Headers TEXT,
                Cookies TEXT,
                Data BLOB
            )
            """
            )
            conn.commit()
    except Error as e:
        print(f"Error: {e}")


def cache_to_db(
    service: str = "",
    pssh: str = "",
    kid: str = "",
    key: str = "",
    license_url: str = "",
    headers: str = "",
    cookies: str = "",
    data: str = "",
):
    """Cache data to the database for MariaDB."""
    try:
        with mysql.connector.connect(**get_db_config()) as conn:
            cursor = conn.cursor()

            cursor.execute("SELECT 1 FROM licenses WHERE KID = %s", (kid,))
            existing_record = cursor.fetchone()

            cursor.execute(
                """
            INSERT INTO licenses (SERVICE, PSSH, KID, `Key`, License_URL, Headers, Cookies, Data)
            VALUES (%s, %s, %s, %s, %s, %s, %s, %s)
            ON DUPLICATE KEY UPDATE
                SERVICE = VALUES(SERVICE),
                PSSH = VALUES(PSSH),
                `Key` = VALUES(`Key`),
                License_URL = VALUES(License_URL),
                Headers = VALUES(Headers),
                Cookies = VALUES(Cookies),
                Data = VALUES(Data)
            """,
                (service, pssh, kid, key, license_url, headers, cookies, data),
            )
            conn.commit()

            return True if existing_record else False
    except Error as e:
        print(f"Error: {e}")
        return False


def search_by_pssh_or_kid(search_filter):
    """Search the database by PSSH or KID for MariaDB."""
    results = set()
    try:
        with mysql.connector.connect(**get_db_config()) as conn:
            cursor = conn.cursor()
            like_filter = f"%{search_filter}%"

            cursor.execute(
                "SELECT PSSH, KID, `Key` FROM licenses WHERE PSSH LIKE %s",
                (like_filter,),
            )
            results.update(cursor.fetchall())

            cursor.execute(
                "SELECT PSSH, KID, `Key` FROM licenses WHERE KID LIKE %s",
                (like_filter,),
            )
            results.update(cursor.fetchall())

        final_results = [
            {"PSSH": row[0], "KID": row[1], "Key": row[2]} for row in results
        ]
        return final_results[:20]
    except Error as e:
        print(f"Error: {e}")
        return []


def get_key_by_kid_and_service(kid, service):
    """Get the key by KID and service for MariaDB."""
    try:
        with mysql.connector.connect(**get_db_config()) as conn:
            cursor = conn.cursor()
            cursor.execute(
                "SELECT `Key` FROM licenses WHERE KID = %s AND SERVICE = %s",
                (kid, service),
            )
            result = cursor.fetchone()
            return result[0] if result else None
    except Error as e:
        print(f"Error: {e}")
        return None


def get_kid_key_dict(service_name):
    """Get the KID and key dictionary for MariaDB."""
    try:
        with mysql.connector.connect(**get_db_config()) as conn:
            cursor = conn.cursor()
            cursor.execute(
                "SELECT KID, `Key` FROM licenses WHERE SERVICE = %s", (service_name,)
            )
            return {row[0]: row[1] for row in cursor.fetchall()}
    except Error as e:
        print(f"Error: {e}")
        return {}


def get_unique_services():
    """Get the unique services for MariaDB."""
    try:
        with mysql.connector.connect(**get_db_config()) as conn:
            cursor = conn.cursor()
            cursor.execute("SELECT DISTINCT SERVICE FROM licenses")
            return [row[0] for row in cursor.fetchall()]
    except Error as e:
        print(f"Error: {e}")
        return []


def key_count():
    """Get the key count for MariaDB."""
    try:
        with mysql.connector.connect(**get_db_config()) as conn:
            cursor = conn.cursor()
            cursor.execute("SELECT COUNT(KID) FROM licenses")
            return cursor.fetchone()[0]
    except Error as e:
        print(f"Error: {e}")
        return 0