"""Create general_settings table for Settings -> General.

Revision ID: 033_general_settings
Revises: 032_refresh_tokens_company_users
Create Date: 2026-08-15
"""

from typing import Sequence, Union

import sqlalchemy as sa
from alembic import op

revision: str = "033_general_settings"
down_revision: Union[str, None] = "032_refresh_tokens_company_users"
branch_labels: Union[str, Sequence[str], None] = None
depends_on: Union[str, Sequence[str], None] = None


def upgrade() -> None:
    conn = op.get_bind()
    inspector = sa.inspect(conn)
    tables = set(inspector.get_table_names())
    if "general_settings" in tables:
        return

    op.create_table(
        "general_settings",
        sa.Column("id", sa.String(length=36), primary_key=True),
        sa.Column("company_id", sa.String(length=36), nullable=False),
        sa.Column("site_name", sa.String(length=200), nullable=False, server_default="Inventory System"),
        sa.Column("site_tagline", sa.String(length=255), nullable=True),
        sa.Column("logo_path", sa.String(length=500), nullable=True),
        sa.Column("date_format", sa.String(length=20), nullable=False, server_default="DD/MM/YYYY"),
        sa.Column("time_format", sa.String(length=10), nullable=False, server_default="12h"),
        sa.Column("currency", sa.String(length=10), nullable=False, server_default="PKR"),
        sa.Column("items_per_page", sa.Integer(), nullable=False, server_default="10"),
        sa.Column(
            "default_landing_page",
            sa.String(length=40),
            nullable=False,
            server_default="dashboard",
        ),
        sa.Column("system_language", sa.String(length=10), nullable=False, server_default="en"),
        sa.Column(
            "enable_multi_warehouse",
            sa.Boolean(),
            nullable=False,
            server_default=sa.text("1"),
        ),
        sa.Column(
            "enable_barcode_scanning",
            sa.Boolean(),
            nullable=False,
            server_default=sa.text("1"),
        ),
        sa.Column(
            "enable_stock_alert",
            sa.Boolean(),
            nullable=False,
            server_default=sa.text("1"),
        ),
        sa.Column(
            "enable_batch_expiry",
            sa.Boolean(),
            nullable=False,
            server_default=sa.text("1"),
        ),
        sa.Column(
            "allow_negative_stock",
            sa.Boolean(),
            nullable=False,
            server_default=sa.text("0"),
        ),
        sa.Column(
            "show_product_images",
            sa.Boolean(),
            nullable=False,
            server_default=sa.text("1"),
        ),
        sa.Column("created_at", sa.DateTime(), nullable=False),
        sa.Column("updated_at", sa.DateTime(), nullable=False),
        sa.ForeignKeyConstraint(["company_id"], ["companies.id"], ondelete="CASCADE"),
        sa.UniqueConstraint("company_id", name="uq_general_settings_company_id"),
    )
    op.create_index("ix_general_settings_company_id", "general_settings", ["company_id"])


def downgrade() -> None:
    conn = op.get_bind()
    inspector = sa.inspect(conn)
    tables = set(inspector.get_table_names())
    if "general_settings" in tables:
        op.drop_table("general_settings")