"""Tests for the decoupled image-build path (build_image, _resolve_image_uri)."""

from __future__ import annotations

import pytest

import platform.deployment.ecr_deploy.stack as stack_module
from platform.deployment.ecr_deploy import lifecycle as deploy_module
from platform.deployment.ecr_deploy.lifecycle import _IMAGE_URI_ENV

_FAKE_URI = "123456789012.dkr.ecr.us-east-1.amazonaws.com/opensre:latest"


# ── _resolve_image_uri ────────────────────────────────────────────────────────


def test_resolve_image_uri_uses_env_var(monkeypatch: pytest.MonkeyPatch) -> None:
    monkeypatch.setenv(_IMAGE_URI_ENV, _FAKE_URI)
    assert deploy_module._resolve_image_uri() == _FAKE_URI


def test_resolve_image_uri_falls_back_to_saved_file(
    monkeypatch: pytest.MonkeyPatch,
    tmp_path: pytest.TempPathFactory,
) -> None:
    uri_file = tmp_path / "image-uri.txt"
    uri_file.write_text(_FAKE_URI + "\n")
    monkeypatch.delenv(_IMAGE_URI_ENV, raising=False)
    monkeypatch.setattr(stack_module, "_IMAGE_URI_FILE", uri_file)

    assert deploy_module._resolve_image_uri() == _FAKE_URI


def test_resolve_image_uri_env_takes_precedence_over_file(
    monkeypatch: pytest.MonkeyPatch,
    tmp_path: pytest.TempPathFactory,
) -> None:
    uri_file = tmp_path / "image-uri.txt"
    uri_file.write_text("stale-uri-from-file:old\n")
    monkeypatch.setattr(stack_module, "_IMAGE_URI_FILE", uri_file)
    monkeypatch.setenv(_IMAGE_URI_ENV, _FAKE_URI)

    assert deploy_module._resolve_image_uri() == _FAKE_URI


def test_resolve_image_uri_fails_fast_when_nothing_available(
    monkeypatch: pytest.MonkeyPatch,
    tmp_path: pytest.TempPathFactory,
) -> None:
    monkeypatch.delenv(_IMAGE_URI_ENV, raising=False)
    monkeypatch.setattr(stack_module, "_IMAGE_URI_FILE", tmp_path / "nonexistent.txt")

    with pytest.raises(RuntimeError, match="make build-image"):
        deploy_module._resolve_image_uri()


# ── build_image ───────────────────────────────────────────────────────────────


def test_build_image_saves_uri_and_returns_it(
    monkeypatch: pytest.MonkeyPatch,
    tmp_path: pytest.TempPathFactory,
) -> None:
    uri_file = tmp_path / "image-uri.txt"
    monkeypatch.setattr(stack_module, "_IMAGE_URI_FILE", uri_file)

    monkeypatch.setattr(
        deploy_module.ecr,
        "create_repository",
        lambda *_a, **_kw: {"uri": "123456789012.dkr.ecr.us-east-1.amazonaws.com/opensre"},
    )
    monkeypatch.setattr(
        deploy_module.ecr,
        "build_and_push",
        lambda *_a, **_kw: _FAKE_URI,
    )

    result = deploy_module.build_image()

    assert result == _FAKE_URI
    assert uri_file.exists()
    assert uri_file.read_text().strip() == _FAKE_URI