"""Generate a compact Python acceptance catalog for MCP admin routes."""

from __future__ import annotations

import json
import sys
from pathlib import Path
from typing import Any


ROOT = Path(__file__).resolve().parents[1]
SRC = ROOT / "src"
OUTPUT = SRC / "mais_humana" / "generated_mcp_admin_route_acceptance.py"

if str(SRC) not in sys.path:
    sys.path.insert(0, str(SRC))

from mais_humana.mcp_contract import McpContractKind, iter_contracts, stable_hash  # noqa: E402


def _operation(contract_id: str) -> str:
    parts = contract_id.split(".")
    if len(parts) >= 4 and parts[-1] == "administration-route":
        return parts[-2]
    return "unknown"


def _permission(policy_tags: tuple[str, ...]) -> str:
    for tag in reversed(policy_tags):
        if tag.startswith("mcp.admin."):
            return tag
    return ""


def _case_status(row: dict[str, Any]) -> tuple[str, tuple[str, ...]]:
    blockers: list[str] = []
    required_transit = tuple(row["requiredTransitFields"])
    required_payload = tuple(row["requiredPayloadFields"])
    for field in (
        "origin",
        "destination",
        "tool",
        "payload",
        "actor",
        "permission",
        "result",
        "traceId",
        "auditId",
        "timestamp",
    ):
        if field not in required_transit:
            blockers.append(f"missing_transit:{field}")
    for field in (
        "adminRouteId",
        "adminRouteKind",
        "sourceEndpoint",
        "sourceToolId",
        "sourcePayloadHash",
        "sourceRecordsHash",
        "truthState",
        "panelReady",
        "gptExplainable",
        "humanNextAction",
        "permissionScope",
        "mcpOnlyAdministration",
    ):
        if field not in required_payload:
            blockers.append(f"missing_payload:{field}")
    if not row["sameSource"]:
        blockers.append("same_source_false")
    if not row["permissionScope"]:
        blockers.append("permission_scope_missing")
    if row["operation"] == "acao" and not (row["approvalRequired"] or row["dryRunSupported"]):
        blockers.append("mutable_action_without_approval_or_dry_run")
    if blockers:
        return "blocked", tuple(blockers)
    if row["maturityLevel"] < 8:
        return "partial", ("maturity_below_8",)
    return "ready", ()


def _case_from_contract(contract: Any) -> dict[str, Any]:
    operation = _operation(contract.contract_id)
    permission = _permission(tuple(contract.policy_tags))
    required_payload = tuple(contract.required_payload_fields)
    row = {
        "routeId": contract.contract_id,
        "platformId": contract.platform_id,
        "profileId": contract.profile_id,
        "operation": operation,
        "toolId": contract.tool_id,
        "sourceToolId": contract.source_tool_id,
        "permissionScope": permission,
        "sourceEndpoint": contract.source_endpoint,
        "sourcePayloadHash": contract.source_payload_hash,
        "sourceRecordsHash": contract.source_records_hash,
        "evidenceId": f"evidence-{contract.source_records_hash[:24]}",
        "truthState": contract.truth_state.value,
        "panelReady": bool(contract.panel_ready),
        "gptExplainable": bool(contract.gpt_explainable),
        "sameSource": bool(contract.same_source_ready),
        "approvalRequired": "approvalRequired" in required_payload,
        "dryRunSupported": "dryRunSupported" in required_payload,
        "requiredTransitFields": tuple(contract.required_transit_fields),
        "requiredPayloadFields": required_payload,
        "validationSteps": tuple(contract.validation_steps),
        "redactionRequirements": tuple(contract.redaction_requirements),
        "pendingIfMissing": contract.pending_if_missing,
        "orderIds": tuple(contract.order_ids),
        "policyTags": tuple(contract.policy_tags),
        "maturityLevel": int(contract.maturity_level),
    }
    status, blockers = _case_status(row)
    row["status"] = status
    row["blockerReasons"] = blockers
    return row


def _format_value(value: Any) -> str:
    return repr(value)


def _render_case(row: dict[str, Any]) -> list[str]:
    lines = ["    {"]
    for key in (
        "routeId",
        "platformId",
        "profileId",
        "operation",
        "toolId",
        "sourceToolId",
        "permissionScope",
        "sourceEndpoint",
        "sourcePayloadHash",
        "sourceRecordsHash",
        "evidenceId",
        "truthState",
        "panelReady",
        "gptExplainable",
        "sameSource",
        "approvalRequired",
        "dryRunSupported",
        "requiredTransitFields",
        "requiredPayloadFields",
        "validationSteps",
        "redactionRequirements",
        "pendingIfMissing",
        "orderIds",
        "policyTags",
        "maturityLevel",
        "status",
        "blockerReasons",
    ):
        lines.append(f"        {key!r}: {_format_value(row[key])},")
    lines.append("    },")
    return lines


def build_cases() -> tuple[dict[str, Any], ...]:
    contracts = [contract for contract in iter_contracts() if contract.kind == McpContractKind.ADMINISTRATION_ROUTE]
    rows = [_case_from_contract(contract) for contract in sorted(contracts, key=lambda item: item.contract_id)]
    return tuple(rows)


def render_module(cases: tuple[dict[str, Any], ...]) -> str:
    source_hash = stable_hash(cases)
    lines = [
        '"""Generated MCP administration route acceptance catalog.',
        "",
        "Do not edit by hand. Regenerate with:",
        "python tools/generate_mcp_admin_route_acceptance.py",
        '"""',
        "",
        "from __future__ import annotations",
        "",
        f"SOURCE_HASH = {source_hash!r}",
        f"CASES_COUNT = {len(cases)!r}",
        "",
        "ADMIN_ROUTE_ACCEPTANCE_CASES = (",
    ]
    for row in cases:
        lines.extend(_render_case(row))
    lines.extend([")", ""])
    return "\n".join(lines)


def main() -> int:
    cases = build_cases()
    OUTPUT.parent.mkdir(parents=True, exist_ok=True)
    OUTPUT.write_text(render_module(cases), encoding="utf-8")
    print(
        json.dumps(
            {
                "output": str(OUTPUT),
                "cases": len(cases),
                "sourceHash": stable_hash(cases),
            },
            ensure_ascii=False,
            indent=2,
            sort_keys=True,
        )
    )
    return 0


if __name__ == "__main__":
    raise SystemExit(main())