from django.db import models
from django.conf import settings
from simple_history.models import HistoricalRecords


class ScraperConfig(models.Model):
    """
    Configuration for a sport's scraper.
    """
    sport = models.ForeignKey(
        'core.Sport',
        on_delete=models.CASCADE,
        related_name='scraper_configs'
    )
    season = models.PositiveSmallIntegerField(
        help_text='Season to scrape (e.g., 2025 for 2025-26 season)'
    )
    is_enabled = models.BooleanField(
        default=True,
        help_text='Whether this scraper is enabled for scheduling'
    )

    # Source configuration
    sources = models.JSONField(
        default=list,
        help_text='Ordered list of sources to try (e.g., ["basketball_reference", "espn"])'
    )
    primary_source = models.CharField(
        max_length=100,
        blank=True,
        help_text='Primary source for this scraper'
    )

    # Rate limiting
    request_delay = models.FloatField(
        default=settings.SCRAPER_REQUEST_DELAY,
        help_text='Seconds between requests'
    )
    max_retries = models.PositiveSmallIntegerField(
        default=settings.SCRAPER_MAX_RETRIES,
        help_text='Maximum retry attempts'
    )

    # Fuzzy matching
    fuzzy_threshold = models.PositiveSmallIntegerField(
        default=settings.SCRAPER_FUZZY_THRESHOLD,
        help_text='Minimum fuzzy match confidence (0-100)'
    )

    # Scheduling
    last_run = models.DateTimeField(
        null=True,
        blank=True,
        help_text='Last successful run timestamp'
    )
    last_run_status = models.CharField(
        max_length=20,
        blank=True,
        help_text='Status of last run'
    )
    last_run_games = models.PositiveIntegerField(
        default=0,
        help_text='Games found in last run'
    )

    # Notes
    notes = models.TextField(
        blank=True,
        help_text='Configuration notes'
    )

    # Metadata
    created_at = models.DateTimeField(auto_now_add=True)
    updated_at = models.DateTimeField(auto_now=True)

    # Audit trail
    history = HistoricalRecords()

    class Meta:
        ordering = ['sport', 'season']
        unique_together = ['sport', 'season']
        verbose_name = 'Scraper Configuration'
        verbose_name_plural = 'Scraper Configurations'

    def __str__(self):
        return f"{self.sport.short_name} {self.sport.get_season_display(self.season)}"

    def get_sources_list(self):
        """Return sources as list, using defaults if empty."""
        if self.sources:
            return self.sources
        # Default sources per sport
        defaults = {
            'nba': ['basketball_reference', 'espn'],
            'mlb': ['baseball_reference', 'mlb_api', 'espn'],
            'nfl': ['espn', 'pro_football_reference'],
            'nhl': ['hockey_reference', 'nhl_api', 'espn'],
            'mls': ['espn'],
            'wnba': ['espn'],
            'nwsl': ['espn'],
        }
        return defaults.get(self.sport.code, ['espn'])