"""Initial migration

Revision ID: d2efb7ea2b22
Revises: 
Create Date: 2026-08-28 16:12:10.511194

"""
from typing import Sequence, Union

from alembic import op
import sqlalchemy as sa


# revision identifiers, used by Alembic.
revision: str = 'd2efb7ea2b22'
down_revision: Union[str, None] = None
branch_labels: Union[str, Sequence[str], None] = None
depends_on: Union[str, Sequence[str], None] = None


def upgrade() -> None:
    # ### commands auto generated by Alembic - please adjust! ###
    op.create_table('fx_rates',
    sa.Column('id', sa.Integer(), nullable=False),
    sa.Column('date', sa.Date(), nullable=False),
    sa.Column('from_currency', sa.String(length=3), nullable=False),
    sa.Column('to_currency', sa.String(length=3), nullable=False),
    sa.Column('rate_major', sa.Integer(), nullable=False),
    sa.Column('rate_minor', sa.Integer(), nullable=False),
    sa.Column('source', sa.String(length=50), nullable=True),
    sa.Column('fetched_at', sa.DateTime(), nullable=True),
    sa.PrimaryKeyConstraint('id'),
    sa.UniqueConstraint('date', 'from_currency', 'to_currency', name='uq_fx_rate_lookup')
    )
    with op.batch_alter_table('fx_rates', schema=None) as batch_op:
        batch_op.create_index(batch_op.f('ix_fx_rates_date'), ['date'], unique=False)

    op.create_table('groups',
    sa.Column('id', sa.Integer(), nullable=False),
    sa.Column('name', sa.String(length=255), nullable=False),
    sa.Column('description', sa.String(length=1000), nullable=True),
    sa.Column('created_at', sa.DateTime(), nullable=False),
    sa.Column('updated_at', sa.DateTime(), nullable=False),
    sa.PrimaryKeyConstraint('id')
    )
    op.create_table('users',
    sa.Column('id', sa.Integer(), nullable=False),
    sa.Column('email', sa.String(length=255), nullable=False),
    sa.Column('hashed_password', sa.String(length=255), nullable=False),
    sa.Column('display_name', sa.String(length=255), nullable=False),
    sa.Column('home_currency', sa.String(length=3), nullable=True),
    sa.Column('created_at', sa.DateTime(), nullable=False),
    sa.Column('updated_at', sa.DateTime(), nullable=False),
    sa.PrimaryKeyConstraint('id')
    )
    with op.batch_alter_table('users', schema=None) as batch_op:
        batch_op.create_index(batch_op.f('ix_users_email'), ['email'], unique=True)

    op.create_table('trips',
    sa.Column('id', sa.Integer(), nullable=False),
    sa.Column('group_id', sa.Integer(), nullable=True),
    sa.Column('name', sa.String(length=255), nullable=False),
    sa.Column('description', sa.String(length=1000), nullable=True),
    sa.Column('start_date', sa.Date(), nullable=False),
    sa.Column('end_date', sa.Date(), nullable=False),
    sa.Column('settlement_currency', sa.String(length=3), nullable=True),
    sa.Column('created_at', sa.DateTime(), nullable=False),
    sa.Column('updated_at', sa.DateTime(), nullable=False),
    sa.ForeignKeyConstraint(['group_id'], ['groups.id'], ),
    sa.PrimaryKeyConstraint('id')
    )
    op.create_table('user_group',
    sa.Column('user_id', sa.Integer(), nullable=False),
    sa.Column('group_id', sa.Integer(), nullable=False),
    sa.ForeignKeyConstraint(['group_id'], ['groups.id'], ),
    sa.ForeignKeyConstraint(['user_id'], ['users.id'], ),
    sa.PrimaryKeyConstraint('user_id', 'group_id')
    )
    op.create_table('expenses',
    sa.Column('id', sa.Integer(), nullable=False),
    sa.Column('trip_id', sa.Integer(), nullable=False),
    sa.Column('payer_id', sa.Integer(), nullable=False),
    sa.Column('original_amount_minor', sa.Integer(), nullable=False),
    sa.Column('original_currency', sa.String(length=3), nullable=False),
    sa.Column('spent_on', sa.Date(), nullable=False),
    sa.Column('category', sa.String(length=100), nullable=True),
    sa.Column('description', sa.String(length=500), nullable=True),
    sa.Column('created_at', sa.DateTime(), nullable=False),
    sa.Column('updated_at', sa.DateTime(), nullable=False),
    sa.ForeignKeyConstraint(['payer_id'], ['users.id'], ),
    sa.ForeignKeyConstraint(['trip_id'], ['trips.id'], ),
    sa.PrimaryKeyConstraint('id')
    )
    op.create_table('payments',
    sa.Column('id', sa.Integer(), nullable=False),
    sa.Column('trip_id', sa.Integer(), nullable=False),
    sa.Column('from_user_id', sa.Integer(), nullable=False),
    sa.Column('to_user_id', sa.Integer(), nullable=False),
    sa.Column('amount_minor', sa.Integer(), nullable=False),
    sa.Column('currency', sa.String(length=3), nullable=False),
    sa.Column('status', sa.String(length=20), nullable=True),
    sa.Column('reference', sa.String(length=255), nullable=True),
    sa.Column('created_at', sa.DateTime(), nullable=False),
    sa.Column('completed_at', sa.DateTime(), nullable=True),
    sa.ForeignKeyConstraint(['from_user_id'], ['users.id'], ),
    sa.ForeignKeyConstraint(['to_user_id'], ['users.id'], ),
    sa.ForeignKeyConstraint(['trip_id'], ['trips.id'], ),
    sa.PrimaryKeyConstraint('id')
    )
    op.create_table('trip_invites',
    sa.Column('id', sa.Integer(), nullable=False),
    sa.Column('trip_id', sa.Integer(), nullable=False),
    sa.Column('created_by_user_id', sa.Integer(), nullable=False),
    sa.Column('token', sa.String(length=36), nullable=False),
    sa.Column('expires_at', sa.DateTime(), nullable=False),
    sa.Column('accepted_at', sa.DateTime(), nullable=True),
    sa.Column('accepted_by_user_id', sa.Integer(), nullable=True),
    sa.Column('created_at', sa.DateTime(), nullable=False),
    sa.ForeignKeyConstraint(['accepted_by_user_id'], ['users.id'], ),
    sa.ForeignKeyConstraint(['created_by_user_id'], ['users.id'], ),
    sa.ForeignKeyConstraint(['trip_id'], ['trips.id'], ),
    sa.PrimaryKeyConstraint('id'),
    sa.UniqueConstraint('token')
    )
    op.create_table('user_trip',
    sa.Column('user_id', sa.Integer(), nullable=False),
    sa.Column('trip_id', sa.Integer(), nullable=False),
    sa.ForeignKeyConstraint(['trip_id'], ['trips.id'], ),
    sa.ForeignKeyConstraint(['user_id'], ['users.id'], ),
    sa.PrimaryKeyConstraint('user_id', 'trip_id')
    )
    op.create_table('expense_participants',
    sa.Column('expense_id', sa.Integer(), nullable=False),
    sa.Column('user_id', sa.Integer(), nullable=False),
    sa.Column('share_minor', sa.Integer(), nullable=False),
    sa.Column('created_at', sa.DateTime(), nullable=False),
    sa.ForeignKeyConstraint(['expense_id'], ['expenses.id'], ),
    sa.ForeignKeyConstraint(['user_id'], ['users.id'], ),
    sa.PrimaryKeyConstraint('expense_id', 'user_id')
    )
    # ### end Alembic commands ###


def downgrade() -> None:
    # ### commands auto generated by Alembic - please adjust! ###
    op.drop_table('expense_participants')
    op.drop_table('user_trip')
    op.drop_table('trip_invites')
    op.drop_table('payments')
    op.drop_table('expenses')
    op.drop_table('user_group')
    op.drop_table('trips')
    with op.batch_alter_table('users', schema=None) as batch_op:
        batch_op.drop_index(batch_op.f('ix_users_email'))

    op.drop_table('users')
    op.drop_table('groups')
    with op.batch_alter_table('fx_rates', schema=None) as batch_op:
        batch_op.drop_index(batch_op.f('ix_fx_rates_date'))

    op.drop_table('fx_rates')
    # ### end Alembic commands ###