from django.db import models

from infrasynth.tenancy.mixins import TenantOwnedModel


class OutboundEndpoint(TenantOwnedModel):
    name = models.CharField(max_length=255)
    url = models.URLField(max_length=1000)
    secret = models.CharField(max_length=500)
    is_active = models.BooleanField(default=True)
    retry_policy = models.JSONField(default=dict, blank=True)
    headers = models.JSONField(default=dict, blank=True)
    timeout_seconds = models.PositiveIntegerField(default=30)
    created_at = models.DateTimeField(auto_now_add=True)
    updated_at = models.DateTimeField(auto_now=True)

    class Meta:
        db_table = "webhooks_outbound_endpoint"
        indexes = [models.Index(fields=["tenant_id", "is_active"])]

    def __str__(self):
        return self.name


class OutboundSubscription(TenantOwnedModel):
    endpoint = models.ForeignKey(OutboundEndpoint, on_delete=models.CASCADE, related_name="subscriptions")
    event_name = models.CharField(max_length=255, db_index=True)
    is_active = models.BooleanField(default=True)
    payload_template = models.TextField(blank=True)
    created_at = models.DateTimeField(auto_now_add=True)
    updated_at = models.DateTimeField(auto_now=True)

    class Meta:
        db_table = "webhooks_outbound_subscription"
        constraints = [
            models.UniqueConstraint(fields=["endpoint", "event_name"], name="uniq_subscription_event_per_endpoint"),
        ]

    def __str__(self):
        return f"{self.endpoint.name} / {self.event_name}"


class OutboundDelivery(TenantOwnedModel):
    class Status(models.TextChoices):
        SUCCESS = "success", "Success"
        FAILED = "failed", "Failed"
        RETRYING = "retrying", "Retrying"

    subscription = models.ForeignKey(OutboundSubscription, on_delete=models.CASCADE, related_name="deliveries")
    payload = models.JSONField()
    response_status = models.PositiveSmallIntegerField(null=True, blank=True)
    response_body = models.TextField(blank=True)
    attempt = models.PositiveIntegerField(default=0)
    status = models.CharField(max_length=20, choices=Status.choices, default=Status.RETRYING)
    next_retry_at = models.DateTimeField(null=True, blank=True)
    created_at = models.DateTimeField(auto_now_add=True)
    completed_at = models.DateTimeField(null=True, blank=True)

    class Meta:
        db_table = "webhooks_outbound_delivery"
        indexes = [models.Index(fields=["tenant_id", "status"])]

    def __str__(self):
        return f"Delivery {self.id} — {self.status}"


class InboundEndpoint(TenantOwnedModel):
    class Source(models.TextChoices):
        STRIPE = "stripe", "Stripe"
        GITHUB = "github", "GitHub"
        MERCADOPAGO = "mercadopago", "Mercado Pago"
        CUSTOM = "custom", "Custom"

    name = models.CharField(max_length=255)
    slug = models.SlugField()
    source = models.CharField(max_length=50, choices=Source.choices)
    secret = models.CharField(max_length=500)
    handler = models.CharField(max_length=500)
    is_active = models.BooleanField(default=True)
    created_at = models.DateTimeField(auto_now_add=True)
    updated_at = models.DateTimeField(auto_now=True)

    class Meta:
        db_table = "webhooks_inbound_endpoint"
        constraints = [
            models.UniqueConstraint(fields=["tenant", "slug"], name="uniq_inbound_endpoint_slug_per_tenant"),
        ]

    def __str__(self):
        return self.name


class InboundEvent(TenantOwnedModel):
    endpoint = models.ForeignKey(InboundEndpoint, on_delete=models.CASCADE, related_name="events")
    event_type = models.CharField(max_length=255)
    external_id = models.CharField(
        max_length=255,
        blank=True,
        default="",
        help_text="Provider event id, used for idempotent re-delivery handling.",
    )
    raw_payload = models.JSONField()
    result = models.JSONField(default=dict, blank=True)
    is_verified = models.BooleanField(default=False)
    is_processed = models.BooleanField(default=False)
    error = models.TextField(blank=True)
    received_at = models.DateTimeField(auto_now_add=True)
    processed_at = models.DateTimeField(null=True, blank=True)

    class Meta:
        db_table = "webhooks_inbound_event"
        indexes = [models.Index(fields=["tenant_id", "is_processed"])]
        constraints = [
            models.UniqueConstraint(
                fields=["endpoint", "external_id"],
                condition=~models.Q(external_id=""),
                name="uniq_inbound_event_external_id_per_endpoint",
            ),
        ]

    def __str__(self):
        return f"{self.endpoint.slug} / {self.event_type}"