"""Phase 17 Common Native Tally Voucher Engine.

Revision ID: 20260823_native_voucher_engine_p17
Revises: 20260823_chart_of_accounts_p16
"""
from alembic import op
import sqlalchemy as sa


revision = "20260823_native_voucher_engine_p17"
down_revision = "20260823_chart_of_accounts_p16"
branch_labels = None
depends_on = None


def upgrade():
    op.create_table(
        "accounting_voucher_drafts",
        sa.Column("id", sa.Integer(), primary_key=True),
        sa.Column("tenant_id", sa.Integer(), sa.ForeignKey("tenants.id", ondelete="CASCADE"), nullable=False),
        sa.Column("client_id", sa.Integer(), sa.ForeignKey("clients.id", ondelete="CASCADE"), nullable=False),
        sa.Column("tally_guid", sa.String(120), nullable=False),
        sa.Column("company_name", sa.String(255), nullable=False, server_default=""),
        sa.Column("voucher_type", sa.String(30), nullable=False),
        sa.Column("business_nature", sa.String(60), nullable=False, server_default=""),
        sa.Column("voucher_date", sa.String(10), nullable=False),
        sa.Column("reference", sa.String(180), nullable=False, server_default=""),
        sa.Column("narration", sa.Text(), nullable=False, server_default=""),
        sa.Column("source_type", sa.String(60), nullable=False, server_default="manual"),
        sa.Column("source_record_type", sa.String(80), nullable=False, server_default=""),
        sa.Column("source_record_id", sa.String(120), nullable=False, server_default=""),
        sa.Column("source_evidence_json", sa.Text(), nullable=False, server_default="{}"),
        sa.Column("audit_area", sa.String(120), nullable=False, server_default=""),
        sa.Column("audit_flags_json", sa.Text(), nullable=False, server_default="[]"),
        sa.Column("total_debit", sa.Float(), nullable=False, server_default="0"),
        sa.Column("total_credit", sa.Float(), nullable=False, server_default="0"),
        sa.Column("status", sa.String(30), nullable=False, server_default="draft"),
        sa.Column("review_note", sa.Text(), nullable=False, server_default=""),
        sa.Column("reviewed_by_user_id", sa.Integer(), sa.ForeignKey("users.id", ondelete="SET NULL"), nullable=True),
        sa.Column("reviewed_at_utc", sa.DateTime(timezone=True), nullable=True),
        sa.Column("approved_by_user_id", sa.Integer(), sa.ForeignKey("users.id", ondelete="SET NULL"), nullable=True),
        sa.Column("approved_at_utc", sa.DateTime(timezone=True), nullable=True),
        sa.Column("workstation_agent_id", sa.Integer(), sa.ForeignKey("erp_workstation_agents.id", ondelete="SET NULL"), nullable=True),
        sa.Column("preflight_job_id", sa.Integer(), sa.ForeignKey("erp_agent_jobs.id", ondelete="SET NULL"), nullable=True),
        sa.Column("posting_job_id", sa.Integer(), sa.ForeignKey("erp_agent_jobs.id", ondelete="SET NULL"), nullable=True),
        sa.Column("preflight_result_json", sa.Text(), nullable=False, server_default="{}"),
        sa.Column("posting_result_json", sa.Text(), nullable=False, server_default="{}"),
        sa.Column("tally_voucher_id", sa.String(120), nullable=False, server_default=""),
        sa.Column("tally_voucher_number", sa.String(160), nullable=False, server_default=""),
        sa.Column("last_error", sa.Text(), nullable=False, server_default=""),
        sa.Column("created_by_user_id", sa.Integer(), sa.ForeignKey("users.id", ondelete="SET NULL"), nullable=True),
        sa.Column("created_at_utc", sa.DateTime(timezone=True), nullable=False, server_default=sa.func.now()),
        sa.Column("updated_at_utc", sa.DateTime(timezone=True), nullable=False, server_default=sa.func.now()),
    )
    for name in (
        "tenant_id", "client_id", "tally_guid", "voucher_type", "business_nature",
        "voucher_date", "reference", "source_type", "audit_area", "status",
        "workstation_agent_id", "preflight_job_id", "posting_job_id", "created_at_utc",
    ):
        op.create_index(f"ix_accounting_voucher_drafts_{name}", "accounting_voucher_drafts", [name])

    op.create_table(
        "accounting_voucher_lines",
        sa.Column("id", sa.Integer(), primary_key=True),
        sa.Column("draft_id", sa.Integer(), sa.ForeignKey("accounting_voucher_drafts.id", ondelete="CASCADE"), nullable=False),
        sa.Column("line_no", sa.Integer(), nullable=False, server_default="1"),
        sa.Column("ledger_name", sa.String(255), nullable=False),
        sa.Column("ledger_role_code", sa.String(50), nullable=False, server_default=""),
        sa.Column("dr_cr", sa.String(2), nullable=False),
        sa.Column("amount", sa.Float(), nullable=False, server_default="0"),
        sa.Column("line_note", sa.Text(), nullable=False, server_default=""),
    )
    for name in ("draft_id", "ledger_name", "ledger_role_code"):
        op.create_index(f"ix_accounting_voucher_lines_{name}", "accounting_voucher_lines", [name])


def downgrade():
    op.drop_table("accounting_voucher_lines")
    op.drop_table("accounting_voucher_drafts")