import json
from datetime import datetime
from pathlib import Path

from config.settings import settings
from models.bible import Character, Event, Location, StoryBible, StoryThread

from services.project_service import project_service


class BibleService:
    def __init__(self):
        from config.settings import settings

        self.data_dir = Path(settings.DATA_DIR)
        self.project_service = project_service

    def _get_bible_file(self, project_id: str, user_id: str) -> Path:
        """Получить путь к файлу Story Bible проекта"""
        project_dir = self.project_service.get_project_dir(project_id, user_id)
        return project_dir / "story_bible.json"

    def _load_bible(self, project_id: str, user_id: str) -> StoryBible:
        """Загрузить Story Bible проекта"""
        bible_file = self._get_bible_file(project_id, user_id)
        if bible_file.exists():
            with open(bible_file, "r", encoding="utf-8") as f:
                data = json.load(f)
                return StoryBible(**data)
        else:
            # Инициализация с примером данных
            return self._create_sample_bible()

    def _create_sample_bible(self) -> StoryBible:
        """Создать пример Story Bible для тестирования"""
        return StoryBible(
            characters=[
                Character(
                    name="Алекс",
                    description="Главный герой, бывший архитектор",
                    traits=["Циничный", "Справедливый", "Наблюдательный"],
                    appearance="Высокий, темные волосы, шрам на левой руке",
                    role="protagonist",
                ),
                Character(
                    name="Лира",
                    description="Таинственная проводница",
                    traits=["Загадочная", "Решительная"],
                    appearance="Носит красный плащ, зеленые глаза",
                    role="supporting",
                ),
            ],
            locations=[
                Location(
                    name="Нижний Город",
                    description="Старая часть города с узкими улочками",
                    atmosphere="Вечный туман, запах озона и мокрого камня",
                    type="city",
                )
            ],
            events=[
                Event(
                    title="Встреча с Лирой",
                    description="Алекс встречает Лиру в тумане Нижнего Города",
                    chapter="Глава 1",
                    importance="major",
                )
            ],
            threads=[
                StoryThread(
                    title="Тайна хранилища",
                    description="Поиск древнего хранилища знаний",
                    status="active",
                    related_characters=[],
                    related_events=[],
                )
            ],
            last_updated=datetime.now().isoformat(),
        )

    def _save_bible(self, project_id: str, bible: StoryBible, user_id: str):
        """Сохранить Story Bible проекта"""
        bible_file = self._get_bible_file(project_id, user_id)
        bible.last_updated = datetime.now().isoformat()
        with open(bible_file, "w", encoding="utf-8") as f:
            json.dump(bible.model_dump(), f, ensure_ascii=False, indent=2)

    def get_bible(self, project_id: str, user_id: str) -> StoryBible:
        """Получить Story Bible проекта"""
        return self._load_bible(project_id, user_id)

    def update_bible(
        self, project_id: str, new_bible: StoryBible, user_id: str
    ) -> StoryBible:
        """Обновить Story Bible проекта"""
        self._save_bible(project_id, new_bible, user_id)
        return new_bible

    def add_character(
        self, project_id: str, character: Character, user_id: str
    ) -> Character:
        """Добавить персонажа в проект"""
        bible = self._load_bible(project_id, user_id)
        bible.characters.append(character)
        self._save_bible(project_id, bible, user_id)
        return character

    def add_location(
        self, project_id: str, location: Location, user_id: str
    ) -> Location:
        """Добавить локацию в проект"""
        bible = self._load_bible(project_id, user_id)
        bible.locations.append(location)
        self._save_bible(project_id, bible, user_id)
        return location

    def add_event(self, project_id: str, event: Event, user_id: str) -> Event:
        """Добавить событие в проект"""
        bible = self._load_bible(project_id, user_id)
        bible.events.append(event)
        self._save_bible(project_id, bible, user_id)
        return event

    def add_thread(
        self, project_id: str, thread: StoryThread, user_id: str
    ) -> StoryThread:
        """Добавить сюжетную нить в проект"""
        bible = self._load_bible(project_id, user_id)
        bible.threads.append(thread)
        self._save_bible(project_id, bible, user_id)
        return thread


# Singleton instance
bible_service = BibleService()