from __future__ import annotations

from pathlib import Path
from uuid import uuid4

import pytest
from playwright.sync_api import expect, sync_playwright

pytestmark = [pytest.mark.playwright, pytest.mark.e2e]

ARTIFACTS = Path("tests/artifacts")
ARTIFACTS.mkdir(parents=True, exist_ok=True)


def test_hedge_builder_saves_template_and_reuses_it_in_backtests(base_url: str) -> None:
    template_name = f"Crash Guard 95 {uuid4().hex[:8]}"

    with sync_playwright() as p:
        browser = p.chromium.launch(headless=True)
        page = browser.new_page(viewport={"width": 1440, "height": 1000})

        page.goto(base_url, wait_until="domcontentloaded", timeout=30000)
        page.get_by_role("button", name="Get started").click()
        page.wait_for_url(f"{base_url}/*", timeout=15000)
        workspace_url = page.url

        page.goto(f"{workspace_url}/hedge", wait_until="domcontentloaded", timeout=30000)
        expect(page.locator("text=Hedge Analysis").first).to_be_visible(timeout=15000)
        expect(page.locator("text=Strategy Builder").first).to_be_visible(timeout=15000)
        expect(page.get_by_label("Strategy selector")).to_be_visible(timeout=15000)

        hedge_text = page.locator("body").inner_text(timeout=15000)
        assert "$6.25/oz" in hedge_text

        page.get_by_label("Template name").fill(template_name)
        page.get_by_label("Expiration days").fill("180")
        page.get_by_label("Primary strike (% of spot)").fill("95")
        page.get_by_role("button", name="Save template").click()

        expect(
            page.locator(f"text=Saved template {template_name}. Reusable on hedge, backtests, and event comparison.")
        ).to_be_visible(timeout=15000)

        expect(page.get_by_label("Strategy selector")).to_have_value(template_name, timeout=15000)
        hedge_text = page.locator("body").inner_text(timeout=15000)
        assert "Selected template: " + template_name in hedge_text
        assert "Custom 180-day protective put at 95% strike." in hedge_text
        assert "$3.49/oz" in hedge_text
        assert "$4.95/oz" not in hedge_text
        assert "RuntimeError" not in hedge_text
        assert "Server error" not in hedge_text
        page.screenshot(path=str(ARTIFACTS / "hedge-builder.png"), full_page=True)

        page.goto(f"{workspace_url}/backtests", wait_until="networkidle", timeout=30000)
        expect(page.locator("text=Backtests").first).to_be_visible(timeout=15000)
        page.get_by_label("Template").click()
        expect(page.get_by_text(template_name, exact=True)).to_be_visible(timeout=15000)

        page.goto(f"{workspace_url}/event-comparison", wait_until="networkidle", timeout=30000)
        expect(page.locator("text=Event Comparison").first).to_be_visible(timeout=15000)
        page.get_by_label("Strategy templates").click()
        expect(page.get_by_text(template_name, exact=True)).to_be_visible(timeout=15000)

        browser.close()