"""Response serializers for the Mail plugin ORM models.

Extracted from services.py as part of the God-object split (BUG-018 pilot).
Re-exported by ``app.plugins.builtins.mail.services``.

account_to_response NEVER includes passwords — security-critical contract.
"""

from __future__ import annotations

import json

from app.plugins.builtins.mail.models import (
    Mail,
    MailAccount,
    MailAttachment,
    MailFolder,
    MailLabel,
    MailRule,
    MailSignature,
    MailTemplate,
)
from app.plugins.builtins.mail.text_utils import (
    extract_email_addresses,  # noqa: F401 — re-exported for backwards compat
)


def attachment_to_response(att: MailAttachment) -> dict:
    """Convert a MailAttachment ORM object to a response dict."""
    return {
        "id": str(att.id),
        "mail_id": str(att.mail_id),
        "filename": att.filename,
        "mime_type": att.mime_type,
        "size_bytes": att.size_bytes,
        "size": att.size_bytes,  # alias for frontend compatibility
        "content_id": att.content_id,
        "is_inline": bool(att.content_id),
        "dms_file_id": str(att.dms_file_id) if att.dms_file_id else None,
    }


def account_to_response(account: MailAccount) -> dict:
    """Convert MailAccount to response dict, NEVER including password."""
    return {
        "id": str(account.id),
        "email": account.email_address,
        "email_address": account.email_address,
        "display_name": account.display_name,
        "imap_host": account.imap_host,
        "imap_port": account.imap_port,
        "imap_ssl": account.imap_ssl,
        "smtp_host": account.smtp_host,
        "smtp_port": account.smtp_port,
        "smtp_tls": account.smtp_tls,
        "username": account.username,
        "is_shared": account.is_shared,
        "is_active": account.is_active,
        "sent_folder_imap_name": account.sent_folder_imap_name,
        "drafts_folder_imap_name": account.drafts_folder_imap_name,
        "spam_folder_imap_name": account.spam_folder_imap_name,
        "trash_folder_imap_name": account.trash_folder_imap_name,
        "created_at": account.created_at,
        "updated_at": account.updated_at,
    }


def mail_to_response(
    mail: Mail,
    attachments: list[MailAttachment] | None = None,
    labels: list[MailLabel] | None = None,
) -> dict:
    """Convert a Mail ORM object to a response dict."""
    resp = {
        "id": str(mail.id),
        "account_id": str(mail.account_id),
        "folder_id": str(mail.folder_id),
        "message_id": mail.message_id,
        "thread_id": mail.thread_id,
        "in_reply_to": mail.in_reply_to,
        "subject": mail.subject,
        "from_address": mail.from_address,
        "from_name": mail.from_address.split("<")[0].strip().strip('"') if "<" in mail.from_address else mail.from_address,
        "to_addresses": extract_email_addresses(mail.to_addresses) if mail.to_addresses else [],
        "cc_addresses": extract_email_addresses(mail.cc_addresses) if mail.cc_addresses else [],
        "bcc_addresses": extract_email_addresses(mail.bcc_addresses) if mail.bcc_addresses else [],
        "body_text": mail.body_text,
        "body_html": mail.body_html if mail.body_html else None,
        "body_html_sanitized": mail.body_html_sanitized,
        "sanitized_html": mail.body_html_sanitized,
        "date": mail.received_at.isoformat() if mail.received_at else (mail.sent_at.isoformat() if mail.sent_at else None),
        "is_seen": mail.is_seen,
        "is_flagged": mail.is_flagged,
        "flag_type": getattr(mail, 'flag_type', None),
        "is_draft": mail.is_draft,
        "is_answered": mail.is_answered,
        "is_forwarded": mail.is_forwarded,
        "has_attachments": mail.has_attachments,
        "size_bytes": mail.size_bytes,
        "received_at": mail.received_at,
        "sent_at": mail.sent_at,
        "contact_id": str(mail.contact_id) if mail.contact_id else None,
        "attachments": [],
        "labels": [],
    }
    if attachments:
        resp["attachments"] = [attachment_to_response(a) for a in attachments]
    if labels:
        resp["labels"] = [
            {"id": str(lbl.id), "name": lbl.name, "color": lbl.color} for lbl in labels
        ]
    return resp


def folder_to_response(folder: MailFolder) -> dict:
    """Convert MailFolder to response dict."""
    return {
        "id": str(folder.id),
        "account_id": str(folder.account_id),
        "name": folder.name,
        "imap_name": folder.imap_name,
        "parent_id": str(folder.parent_id) if folder.parent_id else None,
        "is_standard": folder.is_standard,
        "unread_count": folder.unread_count,
        "total_count": folder.total_count,
    }


def rule_to_response(rule: MailRule) -> dict:
    """Convert MailRule to response dict."""
    return {
        "id": str(rule.id),
        "name": rule.name,
        "account_id": str(rule.account_id) if rule.account_id else None,
        "priority": rule.priority,
        "is_active": rule.is_active,
        "conditions": json.loads(rule.conditions) if rule.conditions else {},
        "actions": json.loads(rule.actions) if rule.actions else {},
    }


def template_to_response(template: MailTemplate) -> dict:
    """Convert MailTemplate to response dict."""
    return {
        "id": str(template.id),
        "name": template.name,
        "subject": template.subject,
        "body_html": template.body_html,
    }


def signature_to_response(sig: MailSignature) -> dict:
    """Convert MailSignature to response dict."""
    return {
        "id": str(sig.id),
        "name": sig.name,
        "body_html": sig.body_html,
        "account_id": str(sig.account_id) if sig.account_id else None,
        "is_default": sig.is_default,
    }


def label_to_response(label: MailLabel) -> dict:
    """Convert MailLabel to response dict."""
    return {
        "id": str(label.id),
        "name": label.name,
        "color": label.color,
    }