"""
Tests for Stage 90 — customer dashboard structure.

This is mostly a static asset (React + Vite SPA). The Python
test suite verifies:
1. Every key file exists at the expected path.
2. package.json declares the expected runtime + dev deps.
3. vite.config.ts proxies /api/v1 to the backend (dev-loop
   sanity — without this, sign-in doesn't work locally).
4. tsconfig.json has strict mode on.
5. The API client (api.ts) references all the routes the
   dashboard pages depend on — drift between pages and the
   client surface would silently break a page.
6. Each page file exists and is non-trivial.
7. The dashboard README has the right anchors (dev / build /
   deploy / API URL).

Component-level tests live in JS land (future work via Vitest);
this file validates the contract that customer-facing code
expects the OrgState API to honor.
"""
import json
from pathlib import Path

import pytest

ROOT = Path(__file__).parent.parent
DASH = ROOT / "dashboard"
SRC = DASH / "src"
PAGES = SRC / "pages"


# =========================================================
# File layout
# =========================================================

def test_dashboard_dir_exists():
    assert DASH.is_dir()


def test_root_config_files_present():
    for name in ("package.json", "vite.config.ts", "tsconfig.json",
                  "tsconfig.node.json", "tailwind.config.js",
                  "postcss.config.js", "index.html", "README.md",
                  ".gitignore"):
        assert (DASH / name).exists(), f"dashboard/{name} missing"


def test_src_files_present():
    for name in ("main.tsx", "App.tsx", "auth.ts", "api.ts",
                  "index.css"):
        assert (SRC / name).exists(), f"dashboard/src/{name} missing"


def test_all_pages_present():
    for page in ("Login.tsx", "Overview.tsx", "Runs.tsx",
                  "RunDetail.tsx", "Webhooks.tsx"):
        path = PAGES / page
        assert path.exists(), f"dashboard/src/pages/{page} missing"
        # non-trivial — at least 30 lines
        assert len(path.read_text().splitlines()) > 30, \
            f"{page} too short — likely placeholder"


# =========================================================
# package.json
# =========================================================

def test_package_json_parses():
    spec = json.loads((DASH / "package.json").read_text())
    assert spec["name"] == "orgstate-dashboard"
    assert spec["type"] == "module"


def test_package_json_has_expected_scripts():
    spec = json.loads((DASH / "package.json").read_text())
    for script in ("dev", "build", "preview", "typecheck"):
        assert script in spec["scripts"], \
            f"package.json missing script: {script}"


def test_package_json_has_react_deps():
    spec = json.loads((DASH / "package.json").read_text())
    for dep in ("react", "react-dom", "react-router-dom"):
        assert dep in spec["dependencies"], \
            f"missing runtime dep: {dep}"


def test_package_json_has_build_devdeps():
    spec = json.loads((DASH / "package.json").read_text())
    for dep in ("vite", "typescript", "@vitejs/plugin-react",
                 "tailwindcss"):
        assert dep in spec["devDependencies"], \
            f"missing dev dep: {dep}"


# =========================================================
# vite.config.ts
# =========================================================

def test_vite_config_has_dev_proxy():
    """Without /api/v1 → :8080 proxy, `npm run dev` can't talk
    to the local backend — sign-in fails with CORS."""
    text = (DASH / "vite.config.ts").read_text()
    assert "/api/v1" in text
    assert "8080" in text
    assert "proxy" in text


def test_vite_config_uses_react_plugin():
    text = (DASH / "vite.config.ts").read_text()
    assert "@vitejs/plugin-react" in text
    assert "react()" in text


# =========================================================
# tsconfig — strict + JSX
# =========================================================

def test_tsconfig_has_strict_mode():
    spec = json.loads((DASH / "tsconfig.json").read_text())
    assert spec["compilerOptions"]["strict"] is True
    assert spec["compilerOptions"]["jsx"] == "react-jsx"


# =========================================================
# api.ts ↔ pages contract
# =========================================================

# Every method the pages call must exist in api.ts. Drift catches
# 'used a method that doesn't exist' BEFORE the page breaks at
# runtime.
def _api_text() -> str:
    return (SRC / "api.ts").read_text()


def _all_pages_text() -> str:
    return "\n".join(p.read_text() for p in PAGES.glob("*.tsx"))


def test_api_has_all_methods_pages_use():
    api = _api_text()
    pages = _all_pages_text()
    # extract every `api.<method>(` call from pages
    import re
    used = set(re.findall(r"api\.(\w+)\(", pages))
    for method in used:
        assert f"{method}:" in api, \
            f"page uses api.{method}() but api.ts doesn't export it"


def test_api_methods_have_known_routes():
    """Each API method's path should reference a route family
    the backend actually exposes."""
    api = _api_text()
    # smoke check — sample expected substrings
    for path in ("/tenants/", "/runs/", "/webhooks/", "/health",
                  "/usage"):
        assert path in api, \
            f"api.ts missing path family {path}"


# =========================================================
# README anchors
# =========================================================

def test_readme_has_install_dev_build_deploy_sections():
    text = (DASH / "README.md").read_text()
    for anchor in ("## Dev", "## Build", "## Deploying",
                    "VITE_API_BASE_URL"):
        assert anchor in text, f"README missing anchor: {anchor}"


def test_readme_links_to_onboarding():
    """Customer reading the dashboard README should know where
    their API key comes from (Stage 85's `infra onboard`)."""
    text = (DASH / "README.md").read_text()
    assert "infra onboard" in text


# =========================================================
# Auth + localStorage contract
# =========================================================

def test_auth_module_uses_localstorage():
    """Sanity — auth.ts must read/write localStorage, not
    sessionStorage / cookies / etc. Stage 90 contract says
    'sign-in persists across page refreshes'."""
    text = (SRC / "auth.ts").read_text()
    assert "localStorage" in text
    assert "loadAuth" in text
    assert "saveAuth" in text
    assert "clearAuth" in text


# =========================================================
# Optional: npm build smoke (gated on Node availability)
# =========================================================

import shutil
import subprocess


@pytest.mark.skipif(
    shutil.which("npm") is None,
    reason="npm not installed; skipping JS build smoke",
)
def test_npm_install_and_build():
    """Heavy gate — runs `npm install` and `npm run build` to
    confirm the dashboard actually builds. Gated on `npm`
    availability so CI workers without Node still pass.

    Skipped if node_modules absent AND we don't have time to
    install (>30s on cold cache). We do `npm install --silent`
    once, then `npm run build` — both must succeed."""
    # install — usually 30-60s on cold cache, near-instant warm
    r = subprocess.run(
        ["npm", "install", "--silent", "--no-audit",
         "--no-fund", "--no-progress"],
        cwd=str(DASH), capture_output=True, timeout=300,
    )
    assert r.returncode == 0, \
        f"npm install failed:\n{r.stderr.decode()}"
    # build — generous timeout for cold tsc + vite (warm: ~1s)
    r = subprocess.run(
        ["npm", "run", "build"],
        cwd=str(DASH), capture_output=True, timeout=300,
    )
    assert r.returncode == 0, (
        f"npm run build failed:\nSTDOUT: {r.stdout.decode()}"
        f"\nSTDERR: {r.stderr.decode()}"
    )
    # dist/ exists with an index.html
    dist = DASH / "dist"
    assert dist.is_dir()
    assert (dist / "index.html").exists()