"""Initial han_app schema, seed and CRM sync triggers.

Revision ID: 0001_initial
Revises:
Create Date: 2026-07-10
"""

from collections.abc import Sequence

import sqlalchemy as sa
from alembic import op
from app.db import Base

revision: str = "0001_initial"
down_revision: str | None = None
branch_labels: str | Sequence[str] | None = None
depends_on: str | Sequence[str] | None = None


SEED = {
    "auth.phone.enabled": ("true", "boolean", True),
    "auth.password.enabled": ("false", "boolean", True),
    "otp.phone.max_send_attempts_per_24h": ("3", "integer", False),
    "otp.phone.min_seconds_between_attempts": ("30", "integer", False),
    "operator.call.phone": ("+74999591007", "string", True),
    "consent.personal_data.required": ("true", "boolean", True),
    "consent.personal_data.document_url": (
        "https://www.han0107.ru/privacy/persdata-agree-mobile",
        "string",
        True,
    ),
    "consent.personal_data.version": ("2026-06-10", "string", True),
    "consent.user_agreement.required": ("true", "boolean", True),
    "consent.user_agreement.document_url": (
        "https://www.han0107.ru/user-agreement",
        "string",
        True,
    ),
    "consent.user_agreement.version": ("2026-06-10", "string", True),
    "consent.marketing.required": ("false", "boolean", True),
    "consent.marketing.version": ("2026-06-10", "string", True),
    "chat.attachments.allowed_extensions": (
        "jpg,jpeg,png,webp,heic,heif,pdf",
        "string_list",
        True,
    ),
    "chat.attachments.allowed_mime_types": (
        "image/jpeg,image/png,image/webp,image/heic,image/heif,application/pdf",
        "string_list",
        True,
    ),
    "chat.attachments.disallowed_extensions": ("svg,doc,docx,xls,xlsx,csv", "string_list", False),
    "chat.attachments.max_size_mb": ("5", "integer", True),
    "chat.attachments.storage": ("selectel_s3", "string", False),
    "chat.attachments.upload_mode": ("presigned_put", "string", False),
    "chat.attachments.safety_scan_required": ("true", "boolean", False),
    "chat.attachments.presigned_upload_ttl_seconds": ("600", "integer", False),
    "rate_limit.message_send.per_user": ("30/minute", "string", False),
    "rate_limit.message_send.per_dialog": ("20/minute", "string", False),
    "rate_limit.download_url.per_user": ("60/hour", "string", False),
    "rate_limit.public_endpoints.per_ip": ("60/minute", "string", False),
    "rate_limit.login.per_ip": ("10/minute", "string", False),
    "ux.session.idle_timeout_minutes": ("30", "integer", True),
    "security.cors.allowed_origins": ("https://tohin.ru", "string_list", False),
    "security.public_cache.max_age_seconds": ("3600", "integer", False),
}


def upgrade() -> None:
    bind = op.get_bind()
    op.execute("CREATE EXTENSION IF NOT EXISTS pgcrypto")
    op.execute("CREATE SCHEMA IF NOT EXISTS han_app")
    Base.metadata.create_all(bind=bind, checkfirst=True)
    op.execute(
        """
        CREATE UNIQUE INDEX IF NOT EXISTS uq_dialog_one_active_per_user
        ON han_app.dialogs(user_id)
        WHERE record_status='A'
          AND status IN ('open','waiting_for_company','waiting_for_client')
        """
    )
    op.execute(
        """
        CREATE UNIQUE INDEX IF NOT EXISTS uq_profiles_active_bitrix_contact
        ON han_app.client_profiles(bitrix_contact_id)
        WHERE bitrix_contact_id IS NOT NULL AND record_status='A'
        """
    )
    op.execute(
        """
        CREATE OR REPLACE FUNCTION han_app.enqueue_contact_sync()
        RETURNS trigger
        LANGUAGE plpgsql
        SECURITY INVOKER
        SET search_path = han_app, pg_temp
        AS $$
        DECLARE
            v_entity_id uuid;
            v_task_type text;
            v_dedup text;
        BEGIN
            IF current_setting('han.sync_suppress', true) = 'true' THEN
                RETURN NEW;
            END IF;
            IF TG_TABLE_NAME = 'user_identities' THEN
                v_entity_id := NEW.id;
                v_task_type := CASE WHEN TG_OP = 'INSERT'
                    THEN 'contact.map_or_create' ELSE 'contact.update' END;
            ELSE
                v_entity_id := NEW.user_id;
                v_task_type := CASE WHEN TG_OP = 'INSERT'
                    THEN 'contact.map_or_create' ELSE 'contact.update' END;
            END IF;
            v_dedup := v_task_type || ':' || v_entity_id::text || ':' ||
                encode(digest(row_to_json(NEW)::text, 'sha256'), 'hex');
            INSERT INTO han_app.sync_queue
                (id, task_type, entity_type, entity_id, dedup_key, payload_json,
                 status, attempt_count, next_attempt_at, created_at, updated_at)
            VALUES
                (gen_random_uuid(), v_task_type, 'contact', v_entity_id, v_dedup,
                 jsonb_build_object('entity_id', v_entity_id), 'pending', 0,
                 now(), now(), now())
            ON CONFLICT (dedup_key) DO NOTHING;
            RETURN NEW;
        END;
        $$
        """
    )
    op.execute(
        "DROP TRIGGER IF EXISTS trg_identity_contact_sync ON han_app.user_identities"
    )
    op.execute(
        """
        CREATE TRIGGER trg_identity_contact_sync
        AFTER INSERT OR UPDATE OF phone_number, record_status
        ON han_app.user_identities
        FOR EACH ROW EXECUTE FUNCTION han_app.enqueue_contact_sync()
        """
    )
    op.execute(
        "DROP TRIGGER IF EXISTS trg_profile_contact_sync ON han_app.client_profiles"
    )
    op.execute(
        """
        CREATE TRIGGER trg_profile_contact_sync
        AFTER INSERT OR UPDATE OF full_name, citizenship, russian_phone,
          foreign_phone, email, record_status
        ON han_app.client_profiles
        FOR EACH ROW EXECUTE FUNCTION han_app.enqueue_contact_sync()
        """
    )
    for key, (value, value_type, public) in SEED.items():
        bind.execute(
            sa.text(
                """
            INSERT INTO han_app.app_settings
                (setting_key, setting_value, value_type, is_public, record_status, updated_at)
            VALUES (:key, :value, :value_type, :public, 'A', now())
            ON CONFLICT (setting_key) DO UPDATE SET
                setting_value = EXCLUDED.setting_value,
                value_type = EXCLUDED.value_type,
                is_public = EXCLUDED.is_public,
                record_status = 'A',
                updated_at = now()
            """
            ),
            {"key": key, "value": value, "value_type": value_type, "public": public},
        )


def downgrade() -> None:
    raise RuntimeError("Initial data migration is forward-only")