import os
from dataclasses import dataclass, field

from dotenv import load_dotenv

load_dotenv()


@dataclass(slots=True)
class FingerprintConfig:
    # Браузерный отпечаток.
    user_agent: str = (
        "Mozilla/5.0 (Windows NT 10.0; Win64; x64) "
        "AppleWebKit/537.36 (KHTML, like Gecko) "
        "Chrome/135.0.0.0 Safari/537.36"
    )
    viewport_presets: tuple[dict[str, int], ...] = (
        {"width": 1920, "height": 1080},
        {"width": 1600, "height": 900},
        {"width": 1536, "height": 864},
        {"width": 1440, "height": 900},
        {"width": 1366, "height": 768},
    )
    timezone_candidates: tuple[str, ...] = (
        "America/New_York",
        "America/Chicago",
        "America/Los_Angeles",
    )
    locale: str = "en-US"
    sec_ch_ua: str = '"Google Chrome";v="135", "Chromium";v="135", "Not.A/Brand";v="24"'


@dataclass(slots=True)
class CaptureConfig:
    # Параметры capture.
    capture_same_origin_only: bool = os.getenv("IAAI_CAPTURE_SAME_ORIGIN_ONLY", "true").strip().lower() in {"1", "true", "yes", "on"}
    max_requests: int = int(os.getenv("IAAI_MAX_CAPTURED_REQUESTS", "40"))
    max_json_responses: int = int(os.getenv("IAAI_MAX_CAPTURED_JSON_RESPONSES", "30"))


@dataclass(slots=True)
class HumanPaceConfig:
    # Паузы между действиями.
    enabled: bool = os.getenv("IAAI_HUMAN_PACE_ENABLED", "true").strip().lower() in {"1", "true", "yes", "on"}
    after_listing_open_min_s: float = float(os.getenv("IAAI_AFTER_LISTING_OPEN_MIN_S", "2.5"))
    after_listing_open_max_s: float = float(os.getenv("IAAI_AFTER_LISTING_OPEN_MAX_S", "4.5"))
    after_filter_action_min_s: float = float(os.getenv("IAAI_AFTER_FILTER_ACTION_MIN_S", "2.0"))
    after_filter_action_max_s: float = float(os.getenv("IAAI_AFTER_FILTER_ACTION_MAX_S", "4.0"))
    before_vehicle_open_min_s: float = float(os.getenv("IAAI_BEFORE_VEHICLE_OPEN_MIN_S", "0.5"))
    before_vehicle_open_max_s: float = float(os.getenv("IAAI_BEFORE_VEHICLE_OPEN_MAX_S", "1.5"))
    after_vehicle_open_min_s: float = float(os.getenv("IAAI_AFTER_VEHICLE_OPEN_MIN_S", "0.3"))
    after_vehicle_open_max_s: float = float(os.getenv("IAAI_AFTER_VEHICLE_OPEN_MAX_S", "1.0"))
    between_vehicles_min_s: float = float(os.getenv("IAAI_BETWEEN_VEHICLES_MIN_S", "0.5"))
    between_vehicles_max_s: float = float(os.getenv("IAAI_BETWEEN_VEHICLES_MAX_S", "1.5"))
    after_page_change_min_s: float = float(os.getenv("IAAI_AFTER_PAGE_CHANGE_MIN_S", "3.0"))
    after_page_change_max_s: float = float(os.getenv("IAAI_AFTER_PAGE_CHANGE_MAX_S", "6.0"))


@dataclass(slots=True)
class ListingConfig:
    # Лимиты листинга.
    cars_url: str = os.getenv("IAAI_CARS_LISTING_URL", "https://www.iaai.com/Vehiclelisting/Cars")
    max_pages_per_run: int = int(os.getenv("IAAI_MAX_PAGES_PER_RUN", "5"))
    max_vehicles_per_run: int = int(os.getenv("IAAI_MAX_VEHICLES_PER_RUN", "100"))
    page_link_limit: int = int(os.getenv("IAAI_PAGE_LINK_LIMIT", "200"))
    include_pagination: bool = os.getenv("IAAI_INCLUDE_PAGINATION", "true").strip().lower() in {"1", "true", "yes", "on"}
    collect_current_page_only: bool = os.getenv("IAAI_COLLECT_CURRENT_PAGE_ONLY", "false").strip().lower() in {"1", "true", "yes", "on"}


@dataclass(slots=True)
class DatabaseConfig:
    # Подключение к БД.
    url: str = os.getenv("IAAI_DATABASE_URL", "postgresql+psycopg2://iaai:iaai@localhost:5432/iaai_scraper")
    echo: bool = os.getenv("IAAI_DATABASE_ECHO", "false").strip().lower() in {"1", "true", "yes", "on"}
    pool_size: int = int(os.getenv("IAAI_DATABASE_POOL_SIZE", "5"))
    max_overflow: int = int(os.getenv("IAAI_DATABASE_MAX_OVERFLOW", "10"))


@dataclass(slots=True)
class RedisConfig:
    # Подключение к Redis.
    url: str = os.getenv("IAAI_REDIS_URL", "redis://localhost:6379/0")


@dataclass(slots=True)
class CeleryConfig:
    # Настройки Celery.
    broker_url: str = os.getenv("CELERY_BROKER_URL", "") or ""
    result_backend: str = os.getenv("CELERY_RESULT_BACKEND", "") or ""
    task_soft_time_limit: int = int(os.getenv("CELERY_TASK_SOFT_TIME_LIMIT", "600"))
    task_time_limit: int = int(os.getenv("CELERY_TASK_TIME_LIMIT", "900"))
    worker_concurrency: int = int(os.getenv("CELERY_WORKER_CONCURRENCY", "1"))
    beat_sync_interval_minutes: int = int(os.getenv("CELERY_BEAT_SYNC_INTERVAL_MINUTES", "60"))
    beat_sync_limit: int = int(os.getenv("CELERY_BEAT_SYNC_LIMIT", "26"))


@dataclass(slots=True)
class ProxyConfig:
    # Настройки прокси.
    server: str | None = (os.getenv("IAAI_PROXY_SERVER") or "").strip() or None
    username: str | None = (os.getenv("IAAI_PROXY_USERNAME") or "").strip() or None
    password: str | None = (os.getenv("IAAI_PROXY_PASSWORD") or "").strip() or None

    @property
    def enabled(self) -> bool:
        return bool(self.server)

    def to_playwright_dict(self) -> dict[str, str] | None:
        # Формат для Playwright.
        if not self.server:
            return None
        result: dict[str, str] = {"server": self.server}
        if self.username:
            result["username"] = self.username
        if self.password:
            result["password"] = self.password
        return result


@dataclass(slots=True)
class Settings:
    # Общие настройки.
    home_url: str = "https://www.iaai.com/"
    default_timeout_ms: int = int(os.getenv("IAAI_TIMEOUT_MS", "45000"))
    network_settle_ms: int = int(os.getenv("IAAI_NETWORK_SETTLE_MS", "800"))
    max_retries: int = int(os.getenv("IAAI_MAX_RETRIES", "3"))
    retry_delay_seconds: float = float(os.getenv("IAAI_RETRY_DELAY_SECONDS", "2.5"))
    retry_backoff_multiplier: float = float(os.getenv("IAAI_RETRY_BACKOFF_MULTIPLIER", "2.0"))
    retry_jitter_seconds: float = float(os.getenv("IAAI_RETRY_JITTER_SECONDS", "0.25"))
    headless: bool = os.getenv("IAAI_HEADLESS", "true").strip().lower() in {"1", "true", "yes", "on"}
    log_level: str = os.getenv("IAAI_LOG_LEVEL", "INFO")
    log_file: str | None = os.getenv("IAAI_LOG_FILE") or None
    enable_trace_id_logs: bool = os.getenv("IAAI_ENABLE_TRACE_ID_LOGS", "true").strip().lower() in {"1", "true", "yes", "on"}
    sync_only_new: bool = os.getenv("IAAI_SYNC_ONLY_NEW", "true").strip().lower() in {"1", "true", "yes", "on"}
    raw_output_json: str | None = os.getenv("IAAI_RAW_OUTPUT_JSON") or None
    scheduler_interval_minutes: int = int(os.getenv("IAAI_SCHEDULER_INTERVAL_MINUTES", "60"))
    fingerprint: FingerprintConfig = field(default_factory=FingerprintConfig)
    capture: CaptureConfig = field(default_factory=CaptureConfig)
    pace: HumanPaceConfig = field(default_factory=HumanPaceConfig)
    listing: ListingConfig = field(default_factory=ListingConfig)
    database: DatabaseConfig = field(default_factory=DatabaseConfig)
    redis: RedisConfig = field(default_factory=RedisConfig)
    celery: CeleryConfig = field(default_factory=CeleryConfig)
    proxy: ProxyConfig = field(default_factory=ProxyConfig)


# Настройки по умолчанию.
settings = Settings()