"""
Scraper models for tracking scraping jobs and manual reviews.
"""
from django.db import models
from simple_history.models import HistoricalRecords


class ScraperConfig(models.Model):
    """
    Configuration for a sport scraper per season.
    """
    sport = models.ForeignKey(
        'core.Sport',
        on_delete=models.CASCADE,
        related_name='scraper_configs'
    )
    season = models.PositiveSmallIntegerField(
        help_text='Season year (start year for split seasons)'
    )
    is_active = models.BooleanField(
        default=True,
        help_text='Whether this config is actively scraping'
    )
    schedule_url = models.URLField(
        blank=True,
        help_text='Base URL for schedule scraping'
    )
    scrape_interval_hours = models.PositiveSmallIntegerField(
        default=24,
        help_text='How often to run the scraper (hours)'
    )
    last_scrape_at = models.DateTimeField(
        null=True,
        blank=True,
        help_text='When the last scrape completed'
    )
    next_scrape_at = models.DateTimeField(
        null=True,
        blank=True,
        help_text='When the next scrape is scheduled'
    )

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

    # Audit trail
    history = HistoricalRecords()

    class Meta:
        ordering = ['-season', 'sport']
        unique_together = ['sport', 'season']
        verbose_name = 'Scraper Config'
        verbose_name_plural = 'Scraper Configs'

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


class ScrapeJob(models.Model):
    """
    Record of a scraping job execution.
    """
    STATUS_CHOICES = [
        ('pending', 'Pending'),
        ('running', 'Running'),
        ('completed', 'Completed'),
        ('failed', 'Failed'),
        ('cancelled', 'Cancelled'),
    ]

    config = models.ForeignKey(
        ScraperConfig,
        on_delete=models.CASCADE,
        related_name='jobs'
    )
    status = models.CharField(
        max_length=20,
        choices=STATUS_CHOICES,
        default='pending'
    )
    started_at = models.DateTimeField(
        null=True,
        blank=True
    )
    completed_at = models.DateTimeField(
        null=True,
        blank=True
    )
    games_found = models.PositiveIntegerField(default=0)
    games_created = models.PositiveIntegerField(default=0)
    games_updated = models.PositiveIntegerField(default=0)
    errors = models.TextField(blank=True)
    log_output = models.TextField(blank=True)

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

    class Meta:
        ordering = ['-created_at']
        verbose_name = 'Scrape Job'
        verbose_name_plural = 'Scrape Jobs'

    def __str__(self):
        return f"{self.config} - {self.status} ({self.created_at.strftime('%Y-%m-%d %H:%M')})"

    @property
    def duration(self):
        """Return job duration in seconds."""
        if self.started_at and self.completed_at:
            return (self.completed_at - self.started_at).total_seconds()
        return None


class ManualReviewItem(models.Model):
    """
    Items flagged for manual review (fuzzy matches, conflicts, etc).
    """
    STATUS_CHOICES = [
        ('pending', 'Pending Review'),
        ('approved', 'Approved'),
        ('rejected', 'Rejected'),
        ('resolved', 'Resolved'),
    ]

    ITEM_TYPE_CHOICES = [
        ('team', 'Team Match'),
        ('stadium', 'Stadium Match'),
        ('game', 'Game Conflict'),
        ('alias', 'New Alias'),
    ]

    sport = models.ForeignKey(
        'core.Sport',
        on_delete=models.CASCADE,
        related_name='review_items'
    )
    job = models.ForeignKey(
        ScrapeJob,
        on_delete=models.SET_NULL,
        null=True,
        blank=True,
        related_name='review_items'
    )
    item_type = models.CharField(
        max_length=20,
        choices=ITEM_TYPE_CHOICES
    )
    status = models.CharField(
        max_length=20,
        choices=STATUS_CHOICES,
        default='pending'
    )
    raw_value = models.CharField(
        max_length=500,
        help_text='The raw scraped value'
    )
    matched_value = models.CharField(
        max_length=500,
        blank=True,
        help_text='The matched canonical value (if any)'
    )
    confidence = models.PositiveSmallIntegerField(
        default=0,
        help_text='Match confidence score (0-100)'
    )
    context = models.JSONField(
        default=dict,
        blank=True,
        help_text='Additional context (game date, opposing team, etc)'
    )
    resolution_notes = models.TextField(
        blank=True,
        help_text='Notes about the resolution'
    )
    resolved_at = models.DateTimeField(
        null=True,
        blank=True
    )
    resolved_by = models.ForeignKey(
        'auth.User',
        on_delete=models.SET_NULL,
        null=True,
        blank=True,
        related_name='resolved_reviews'
    )

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

    class Meta:
        ordering = ['-confidence', '-created_at']
        verbose_name = 'Manual Review Item'
        verbose_name_plural = 'Manual Review Items'

    def __str__(self):
        return f"{self.item_type}: {self.raw_value} ({self.confidence}%)"