import argparse
import importlib.util
import json
import os
from pathlib import Path

import pytest


SCRIPT_PATH = Path(__file__).resolve().parents[1] / "scripts" / "run_final_live_proof.py"
SPEC = importlib.util.spec_from_file_location("run_final_live_proof", SCRIPT_PATH)
run_final_live_proof = importlib.util.module_from_spec(SPEC)
assert SPEC.loader is not None
SPEC.loader.exec_module(run_final_live_proof)

LIVE_ENV_KEYS = [
    "PROOFFRAME_STORAGE_BACKEND",
    "PROOFFRAME_GENERATION_BACKEND",
    "B2_ENDPOINT_URL",
    "B2_BUCKET",
    "B2_KEY_ID",
    "B2_APPLICATION_KEY",
    "B2_APP_KEY",
    "B2_REGION",
    "GENBLAZE_PROVIDER",
    "GENBLAZE_API_KEY",
    "GMI_API_KEY",
    "OPENAI_API_KEY",
    "GENBLAZE_IMAGE_MODEL",
]


@pytest.fixture(autouse=True)
def restore_live_env():
    snapshot = {key: os.environ.get(key) for key in LIVE_ENV_KEYS}
    yield
    for key, value in snapshot.items():
        if value is None:
            os.environ.pop(key, None)
        else:
            os.environ[key] = value


def test_apply_env_file_sets_b2_storage_and_genblaze_generation(tmp_path, monkeypatch):
    env_file = tmp_path / ".env.final.local"
    env_file.write_text(
        "\n".join(
            [
                "PROOFFRAME_STORAGE_BACKEND=local",
                "PROOFFRAME_GENERATION_BACKEND=mock",
                "B2_ENDPOINT_URL=s3.us-west-004.backblazeb2.com",
                "B2_BUCKET=proofframe-demo-a6b4e49",
                "B2_KEY_ID=test-key-id",
                "B2_APPLICATION_KEY=fake",
                "GMI_API_KEY=test-gmi-key",
                "GENBLAZE_IMAGE_MODEL=seedream-5.0-lite",
            ]
        ),
        encoding="utf-8",
    )
    for key in [
        "PROOFFRAME_STORAGE_BACKEND",
        "PROOFFRAME_GENERATION_BACKEND",
        "B2_ENDPOINT_URL",
        "B2_BUCKET",
        "B2_KEY_ID",
        "B2_APPLICATION_KEY",
        "GENBLAZE_PROVIDER",
        "GMI_API_KEY",
        "GENBLAZE_IMAGE_MODEL",
    ]:
        monkeypatch.delenv(key, raising=False)

    values = run_final_live_proof.apply_env_file(env_file)

    assert values["PROOFFRAME_STORAGE_BACKEND"] == "b2"
    assert values["PROOFFRAME_GENERATION_BACKEND"] == "genblaze"
    assert os.environ["B2_BUCKET"] == "proofframe-demo-a6b4e49"
    assert os.environ["GENBLAZE_IMAGE_MODEL"] == "seedream-5.0-lite"


def test_apply_env_file_allows_non_secret_genblaze_overrides(tmp_path, monkeypatch):
    env_file = tmp_path / ".env.final.local"
    env_file.write_text(
        "\n".join(
            [
                "PROOFFRAME_STORAGE_BACKEND=local",
                "PROOFFRAME_GENERATION_BACKEND=mock",
                "GENBLAZE_PROVIDER=gmicloud",
                "GENBLAZE_IMAGE_MODEL=seedream-5.0-lite",
            ]
        ),
        encoding="utf-8",
    )
    for key in [
        "PROOFFRAME_STORAGE_BACKEND",
        "PROOFFRAME_GENERATION_BACKEND",
        "GENBLAZE_PROVIDER",
        "GENBLAZE_IMAGE_MODEL",
    ]:
        monkeypatch.delenv(key, raising=False)

    values = run_final_live_proof.apply_env_file(
        env_file,
        genblaze_provider="openai",
        genblaze_image_model="gpt-image-1",
    )

    assert values["PROOFFRAME_STORAGE_BACKEND"] == "b2"
    assert values["PROOFFRAME_GENERATION_BACKEND"] == "genblaze"
    assert os.environ["GENBLAZE_PROVIDER"] == "openai"
    assert os.environ["GENBLAZE_IMAGE_MODEL"] == "gpt-image-1"


def test_build_uvicorn_command_uses_requested_host_and_port():
    command = run_final_live_proof.build_uvicorn_command("127.0.0.1", 8099)

    assert command[:3] == [run_final_live_proof.sys.executable, "-m", "uvicorn"]
    assert "proofframe.app:app" in command
    assert "127.0.0.1" in command
    assert "8099" in command


def test_wait_for_live_app_accepts_only_b2_and_genblaze():
    calls = []

    def fake_read(url):
        calls.append(url)
        if len(calls) == 1:
            return {"ready": True, "storage_backend": "local", "generation_backend": "mock"}
        return {"ready": True, "storage_backend": "b2", "generation_backend": "genblaze"}

    health = run_final_live_proof.wait_for_live_app(
        "http://127.0.0.1:8088",
        timeout_seconds=1,
        read=fake_read,
    )

    assert health["storage_backend"] == "b2"
    assert health["generation_backend"] == "genblaze"
    assert calls == ["http://127.0.0.1:8088", "http://127.0.0.1:8088"]


def test_annotate_final_evidence_adds_schema_and_mode(tmp_path):
    evidence_path = tmp_path / "evidence.json"
    evidence_path.write_text('{"ok": true, "storage_backend": "b2"}', encoding="utf-8")

    assert run_final_live_proof.annotate_final_evidence(evidence_path) is True

    evidence = json.loads(evidence_path.read_text(encoding="utf-8"))
    assert evidence["schema"] == run_final_live_proof.EVIDENCE_SCHEMA
    assert evidence["mode"] == run_final_live_proof.EVIDENCE_MODE
    assert evidence["ok"] is True


def test_preflight_only_fails_closed_without_live_env(monkeypatch, tmp_path):
    for key in [
        "PROOFFRAME_STORAGE_BACKEND",
        "B2_ENDPOINT_URL",
        "B2_BUCKET",
        "B2_KEY_ID",
        "B2_APPLICATION_KEY",
        "B2_APP_KEY",
        "PROOFFRAME_GENERATION_BACKEND",
        "GENBLAZE_API_KEY",
        "GMI_API_KEY",
        "OPENAI_API_KEY",
        "GENBLAZE_IMAGE_MODEL",
    ]:
        monkeypatch.delenv(key, raising=False)

    args = argparse.Namespace(
        env_file=None,
        host="127.0.0.1",
        port=8088,
        timeout_seconds=0.1,
        evidence_out=tmp_path / "evidence.json",
        log_path=tmp_path / "uvicorn.log",
        preflight_only=True,
    )

    assert run_final_live_proof.run_final_live_proof(args) == 2
    assert not args.evidence_out.exists()