#!/usr/bin/env python3
"""
Smoke test: a11y R1 password visibility toggle exists and is correctly structured.
Issue #551: [a11y] R1: Add password visibility toggle on login

Verifies that deploy/gitea-a11y/custom/templates/user/auth/signin_inner.tmpl
contains all required elements for an accessible password toggle:
- password input with type="password" and proper id/name
- toggle button with id="toggle-password", aria-label, title, and onclick
- JavaScript function togglePasswordVisibility() that toggles type and aria-label
"""

import sys
from pathlib import Path

# Resolve repo root
REPO_ROOT = Path(__file__).resolve().parent.parent
TEMPLATE_PATH = REPO_ROOT / "deploy" / "gitea-a11y" / "custom" / "templates" / "user" / "auth" / "signin_inner.tmpl"


def test_r1_toggle_button_exists():
    """Template contains the toggle button with required attributes."""
    content = TEMPLATE_PATH.read_text()

    # Check button exists with proper ID
    assert 'id="toggle-password"' in content, "Toggle button missing id='toggle-password'"

    # Check button has type="button"
    assert 'type="button"' in content, "Toggle button missing type='button'"

    # Check aria-label (initially "Show password")
    assert 'aria-label="Show password"' in content, "Toggle button missing initial aria-label='Show password'"

    # Check title attribute
    assert 'title="Show password"' in content, "Toggle button missing initial title='Show password'"

    # Check onclick calls togglePasswordVisibility()
    assert 'onclick="togglePasswordVisibility()"' in content, "Toggle button missing onclick handler"

    print("✓ Toggle button exists with required attributes")


def test_r1_password_input_exists():
    """Template contains password input with proper id and type."""
    content = TEMPLATE_PATH.read_text()

    # Check password input id and name
    assert 'id="password"' in content, "Password input missing id='password'"
    assert 'name="password"' in content, "Password input missing name='password'"

    # Check type is "password"
    assert 'type="password"' in content, "Password input missing type='password'"

    # Check required and aria-required for a11y
    assert 'required' in content, "Password input missing required attribute"
    assert 'aria-required="true"' in content, "Password input missing aria-required='true'"

    print("✓ Password input exists with type='password' and required a11y")


def test_r1_javascript_function_exists():
    """Template contains togglePasswordVisibility JS function."""
    content = TEMPLATE_PATH.read_text()

    # Function definition
    assert 'function togglePasswordVisibility()' in content, "Missing togglePasswordVisibility function"

    # Function toggles input.type
    assert "input.type = 'text'" in content, "Function doesn't set input.type to 'text'"
    assert "input.type = 'password'" in content, "Function doesn't reset input.type to 'password'"

    # Function updates aria-label
    assert "'Hide password'" in content, "Function doesn't update aria-label to 'Hide password'"
    assert "'Show password'" in content, "Function doesn't update aria-label back to 'Show password'"

    # Function updates button textContent (emoji)
    assert "btn.textContent = '🙈'" in content, "Function missing hide emoji"
    assert "btn.textContent = '👁'" in content, "Function missing show emoji"

    print("✓ JavaScript toggle function correctly implemented")


def test_r1_label_association():
    """Password field has associated label."""
    content = TEMPLATE_PATH.read_text()

    # Label for attribute matches input id
    assert 'for="password"' in content, "Label missing for='password'"
    assert 'id="password"' in content, "Input missing id='password'"

    print("✓ Label correctly associated with password input")


def run_all():
    """Run all R1 checks."""
    print("R1 Smoke Test — Password Visibility Toggle (issue #551)")
    print("-" * 60)
    try:
        test_r1_toggle_button_exists()
        test_r1_password_input_exists()
        test_r1_javascript_function_exists()
        test_r1_label_association()
        print("-" * 60)
        print("✅ All R1 checks passed")
        return 0
    except AssertionError as e:
        print(f"\n❌ R1 check failed: {e}")
        return 1
    except Exception as e:
        print(f"\n❌ Unexpected error: {e}")
        return 1


if __name__ == "__main__":
    sys.exit(run_all())