from __future__ import annotations

from django.db import models
from django.utils import timezone

from apps.core.models import TimeStampedModel


class DigestOutbox(TimeStampedModel):
    class Status(models.TextChoices):
        PENDING = "pending", "Klaar"
        SENT = "sent", "Verzonden"
        FAILED = "failed", "Mislukt"
        SKIPPED = "skipped", "Overgeslagen"

    profile = models.ForeignKey(
        "profiles.SearchProfile", on_delete=models.CASCADE, related_name="digests"
    )
    dedupe_key = models.CharField(max_length=200, unique=True)
    scheduled_for = models.DateTimeField(db_index=True)
    recipient = models.EmailField(blank=True)
    subject = models.CharField(max_length=300)
    payload = models.JSONField(default=dict)
    status = models.CharField(max_length=16, choices=Status.choices, default=Status.PENDING)
    sent_at = models.DateTimeField(null=True, blank=True)
    error_message = models.CharField(max_length=1000, blank=True)

    class Meta:
        ordering = ["-scheduled_for"]

    def mark_sent(self) -> None:
        self.status = self.Status.SENT
        self.sent_at = timezone.now()
        self.error_message = ""
        self.save(update_fields=["status", "sent_at", "error_message", "updated_at"])

    def mark_failed(self, message: str) -> None:
        self.status = self.Status.FAILED
        self.error_message = message[:1000]
        self.save(update_fields=["status", "error_message", "updated_at"])

    def mark_skipped(self, reason: str) -> None:
        self.status = self.Status.SKIPPED
        self.error_message = reason[:1000]
        self.save(update_fields=["status", "error_message", "updated_at"])


class ReminderOutbox(TimeStampedModel):
    class ReminderType(models.TextChoices):
        CLOSING = "closing", "Sluitingsherinnering"
        FOLLOW_UP = "follow_up", "Opvolgherinnering"
        TOP_MATCH = "top_match", "Topmatch"

    class Status(models.TextChoices):
        PENDING = "pending", "Klaar"
        SENT = "sent", "Verzonden"
        FAILED = "failed", "Mislukt"
        SKIPPED = "skipped", "Overgeslagen"

    profile = models.ForeignKey(
        "profiles.SearchProfile", on_delete=models.CASCADE, related_name="reminders"
    )
    reminder_type = models.CharField(max_length=16, choices=ReminderType.choices)
    dedupe_key = models.CharField(max_length=255, unique=True)
    scheduled_for = models.DateTimeField(db_index=True)
    recipient = models.EmailField(blank=True)
    subject = models.CharField(max_length=300)
    payload = models.JSONField(default=dict)
    status = models.CharField(max_length=16, choices=Status.choices, default=Status.PENDING)
    job = models.ForeignKey(
        "jobs.JobPosting",
        on_delete=models.SET_NULL,
        null=True,
        blank=True,
        related_name="reminders",
    )
    application = models.ForeignKey(
        "jobs.Application",
        on_delete=models.SET_NULL,
        null=True,
        blank=True,
        related_name="reminders",
    )
    score_run = models.ForeignKey(
        "jobs.ScoreRun", on_delete=models.SET_NULL, null=True, blank=True, related_name="reminders"
    )
    sent_at = models.DateTimeField(null=True, blank=True)
    error_message = models.CharField(max_length=1000, blank=True)

    class Meta:
        ordering = ["-scheduled_for"]

    def mark_sent(self) -> None:
        self.status = self.Status.SENT
        self.sent_at = timezone.now()
        self.error_message = ""
        self.save(update_fields=["status", "sent_at", "error_message", "updated_at"])

    def mark_failed(self, message: str) -> None:
        self.status = self.Status.FAILED
        self.error_message = message[:1000]
        self.save(update_fields=["status", "error_message", "updated_at"])

    def mark_skipped(self, reason: str) -> None:
        self.status = self.Status.SKIPPED
        self.error_message = reason[:1000]
        self.save(update_fields=["status", "error_message", "updated_at"])