from __future__ import annotations

from playwright.sync_api import expect, sync_playwright

BASE_URL = "http://127.0.0.1:8000"


def test_settings_reject_invalid_loan_amount_without_silent_zero_fallback() -> None:
    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)
        expect(page.locator("text=Create a private workspace URL").first).to_be_visible(timeout=10000)
        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}/settings", wait_until="domcontentloaded", timeout=30000)
        expect(page.locator("text=Settings").first).to_be_visible(timeout=15000)
        expect(page.locator("text=Last saved:").first).to_be_visible(timeout=15000)

        refresh_interval_input = page.get_by_label("Refresh interval (seconds)")
        refresh_interval_input.fill("7")
        expect(page.locator("text=Unsaved changes — Last saved:").first).to_be_visible(timeout=15000)
        refresh_interval_input.fill("5.5")
        refresh_interval_input.press("Tab")
        expect(page.locator("text=INVALID").first).to_be_visible(timeout=15000)
        expect(page.locator("text=Refresh interval must be a whole number of seconds").first).to_be_visible(
            timeout=15000
        )
        page.reload(wait_until="domcontentloaded", timeout=30000)
        expect(page.get_by_label("Refresh interval (seconds)")).to_have_value("5")
        expect(page.locator("text=Last saved:").first).to_be_visible(timeout=15000)

        loan_input = page.get_by_label("Loan amount ($)")
        loan_input.fill("")
        loan_input.press("Tab")

        expect(page.locator("text=INVALID").first).to_be_visible(timeout=15000)
        expect(page.locator("text=Loan amount must be zero or greater").first).to_be_visible(timeout=15000)
        expect(page.locator("text=Unsaved invalid changes — Last saved:").first).to_be_visible(timeout=15000)

        page.get_by_role("button", name="Save settings").click()
        expect(page.locator("text=Validation error: Loan amount must be zero or greater").first).to_be_visible(
            timeout=15000
        )

        settings_text = page.locator("body").inner_text(timeout=15000)
        assert "LTV=0.0%" not in settings_text
        assert "RuntimeError" not in settings_text
        assert "Server error" not in settings_text
        assert "Traceback" not in settings_text

        page.reload(wait_until="domcontentloaded", timeout=30000)
        expect(page.get_by_label("Loan amount ($)")).to_have_value("145000")
        expect(page.locator("text=Last saved:").first).to_be_visible(timeout=15000)

        browser.close()