"""Robot Framework helper for validation apply gate.

Provides a CLI-style interface for Robot to invoke validation
attachment creation, runner execution, and gate evaluation.
Exit code 0 = success, 1 = failure.

Usage::

    python robot/helper_validation_apply.py run-gate \\
        <plan_id> <val_name> <res_id> <mode> <ctx_key> <ctx_val>
    python robot/helper_validation_apply.py summary \\
        <plan_id> <n_req_pass> <n_req_fail>
    python robot/helper_validation_apply.py check-block \\
        <plan_id> <n_req_pass> <n_req_fail>
"""

from __future__ import annotations

import json
import sys
from pathlib import Path

# Ensure the src directory is on the import path.
_SRC = str(Path(__file__).resolve().parents[1] / "src")
if _SRC not in sys.path:
    sys.path.insert(0, _SRC)

from cleveragents.application.services.validation_apply import (  # noqa: E402
    ApplyValidationGate,
    ApplyValidationResult,
    ApplyValidationSummary,
    DefaultValidationRunner,
    ValidationAttachment,
)
from cleveragents.domain.models.core.tool import ValidationMode  # noqa: E402


def _cmd_run_gate(args: list[str]) -> int:
    """Run the validation gate with a single attachment."""
    if len(args) < 6:
        print(
            "Usage: run-gate <plan_id> <val_name> <res_id> <mode> <ctx_key> <ctx_val>"
        )
        return 1
    plan_id = args[0]
    att = ValidationAttachment(
        attachment_id="01ATT000000000000000000000",
        validation_name=args[1],
        resource_id=args[2],
        mode=ValidationMode(args[3]),
    )
    ctx = {args[4]: args[5]}
    runner = DefaultValidationRunner()
    gate = ApplyValidationGate(runner=runner)
    summary = gate.run(plan_id, [att], ctx)
    blocked = gate.should_block_apply(summary)
    status = "BLOCKED" if blocked else "ALLOWED"
    print(f"val-gate-ok: {status}")
    print(f"  total={summary.total}")
    print(f"  required_passed={summary.required_passed}")
    print(f"  required_failed={summary.required_failed}")
    return 0


def _cmd_summary(args: list[str]) -> int:
    """Build a summary and print metadata."""
    if len(args) < 3:
        print("Usage: summary <plan_id> <n_req_pass> <n_req_fail>")
        return 1
    plan_id = args[0]
    n_pass, n_fail = int(args[1]), int(args[2])
    results: list[ApplyValidationResult] = []
    for i in range(n_pass):
        results.append(
            ApplyValidationResult(
                attachment_id=f"01ATT{i:021d}",
                validation_name=f"val-{i}",
                resource_id=f"res-{i}",
                mode=ValidationMode.REQUIRED,
                passed=True,
                message="ok",
            )
        )
    for i in range(n_fail):
        results.append(
            ApplyValidationResult(
                attachment_id=f"01ATT{n_pass + i:021d}",
                validation_name=f"val-{n_pass + i}",
                resource_id=f"res-{n_pass + i}",
                mode=ValidationMode.REQUIRED,
                passed=False,
                message="failed",
            )
        )
    summary = ApplyValidationSummary(plan_id=plan_id, results=results)
    md = summary.to_plan_metadata()
    print(f"val-summary-ok: {json.dumps(md, default=str)}")
    return 0


def _cmd_check_block(args: list[str]) -> int:
    """Check if gate blocks apply."""
    if len(args) < 3:
        print("Usage: check-block <plan_id> <n_req_pass> <n_req_fail>")
        return 1
    plan_id = args[0]
    n_pass, n_fail = int(args[1]), int(args[2])
    results: list[ApplyValidationResult] = []
    for i in range(n_pass):
        results.append(
            ApplyValidationResult(
                attachment_id=f"01ATT{i:021d}",
                validation_name=f"val-{i}",
                resource_id=f"res-{i}",
                mode=ValidationMode.REQUIRED,
                passed=True,
                message="ok",
            )
        )
    for i in range(n_fail):
        results.append(
            ApplyValidationResult(
                attachment_id=f"01ATT{n_pass + i:021d}",
                validation_name=f"val-{n_pass + i}",
                resource_id=f"res-{n_pass + i}",
                mode=ValidationMode.REQUIRED,
                passed=False,
                message="failed",
            )
        )
    summary = ApplyValidationSummary(plan_id=plan_id, results=results)
    gate = ApplyValidationGate(runner=DefaultValidationRunner())
    blocked = gate.should_block_apply(summary)
    status = "BLOCKED" if blocked else "ALLOWED"
    print(f"val-check-block-ok: {status}")
    return 0


def main() -> int:
    """Entry point called by Robot Framework ``Run Process``."""
    if len(sys.argv) < 2:
        print("Usage: helper_validation_apply.py <run-gate|summary|check-block> ...")
        return 1

    command = sys.argv[1]
    args = sys.argv[2:]

    dispatch = {
        "run-gate": _cmd_run_gate,
        "summary": _cmd_summary,
        "check-block": _cmd_check_block,
    }

    handler = dispatch.get(command)
    if handler is None:
        print(f"Unknown command: {command}")
        return 1

    return handler(args)


if __name__ == "__main__":
    sys.exit(main())