import json
import os
from abc import ABC, abstractmethod

import config


class Connector(ABC):
    def __init__(self):
        pass

    @abstractmethod
    def get_all(self) -> list:
        pass

    @abstractmethod
    def get_by_id(self, record_id: int) -> dict:
        pass

    @abstractmethod
    def delete_by_id(self, record_id: int):
        pass

    @abstractmethod
    def update_record(self, updated_record: dict):
        pass

    @abstractmethod
    def create_new(self, values: dict) -> int:
        pass


class JSONConnector(Connector):
    def __init__(self):
        super().__init__()
        self.config = config.Config()
        self.json_path = self.config.get("json", "path")
        self.json_file = os.path.join(self.json_path, "brovski-adress-etiketten-verwaltung.json")

    def get_all(self) -> list:
        with open(self.json_file, "r") as f:
            return json.load(f)

    def get_by_id(self, record_id: int) -> dict:
        data = self.get_all()
        for record in data:
            if record["record_id"] == record_id:
                return record

    def delete_by_id(self, record_id: int):
        data = self.get_all()
        for idx, record in enumerate(data):
            if record["record_id"] == record_id:
                del data[idx]
        self._write_to_file(data)

    def update_record(self, new_record: dict):
        data = self.get_all()
        for idx, record in enumerate(data):
            if record["record_id"] == new_record["record_id"]:
                data[idx] = new_record
        self._write_to_file(data)

    def create_new(self, record: dict) -> int:
        data = self.get_all()
        if len(data) == 0:
            next_id = 0
        else:
            next_id = max(data, key=lambda x: x["record_id"])["record_id"] + 1
        record["record_id"] = next_id
        data.append(record)
        self._write_to_file(data)
        return next_id

    def _write_to_file(self, data):
        with open(self.json_file, "w") as f:
            json.dump(data, f, indent=4)