"""Matching a requested URL against already-open tabs."""
from __future__ import annotations

import pytest

from browser_cli.url_match import (
  find_reusable_tab,
  needs_navigation,
  normalize_mode,
  url_key,
  urls_match,
)

def test_canonical_key_ignores_cosmetic_differences():
  assert url_key("https://Example.com:443/app/?b=2&a=1#top") == url_key("https://www.example.com/app?a=1&b=2")

def test_canonical_key_keeps_meaningful_differences():
  assert url_key("https://example.com/app") != url_key("http://example.com/app")
  assert url_key("https://example.com/app") != url_key("https://example.com:8080/app")
  assert url_key("https://example.com/a") != url_key("https://example.com/b")
  assert url_key("https://example.com/a?x=1") != url_key("https://example.com/a?x=2")

def test_non_urls_have_no_key():
  assert url_key(None) is None
  assert url_key("") is None
  assert url_key("not a url") is None

@pytest.mark.parametrize("reuse,reuse_domain,expected", [
  (False, False, "none"),
  (None, False, "none"),
  (True, False, "similar"),
  ("exact", False, "exact"),
  ("ORIGIN", False, "origin"),
  (False, True, "origin"),
  (True, True, "origin"),
])
def test_flags_fold_into_modes(reuse, reuse_domain, expected):
  assert normalize_mode(reuse, reuse_domain) == expected

def test_unknown_mode_is_rejected():
  with pytest.raises(ValueError, match="Unknown reuse mode"):
    normalize_mode("fuzzy")

def test_exact_mode_only_matches_identical_strings():
  assert urls_match("https://example.com/app", "https://example.com/app", "exact")
  assert not urls_match("https://example.com/app", "https://example.com/app/", "exact")

def test_similar_mode_matches_the_same_page():
  assert urls_match("https://example.com/app/", "https://example.com/app#section", "similar")
  assert not urls_match("https://example.com/app", "https://example.com/other", "similar")
  assert not urls_match("https://example.com/app", "https://other.example/app", "similar")

def test_similar_mode_treats_a_site_root_request_as_the_site():
  assert urls_match("https://example.com/", "https://example.com/web/streams", "similar")
  assert not urls_match("https://example.com/web", "https://example.com/web/streams", "similar")

def test_origin_mode_matches_any_page_of_the_site():
  assert urls_match("https://example.com/web", "https://example.com/other", "origin")
  assert not urls_match("https://example.com/web", "http://example.com/web", "origin")

def test_none_mode_never_matches():
  assert not urls_match("https://example.com", "https://example.com", "none")
  assert find_reusable_tab([{"id": 1, "url": "https://example.com"}], "https://example.com", "none") is None

def test_closest_tab_wins():
  tabs = [
    {"id": 1, "url": "https://example.com/web/streams/detail"},
    {"id": 2, "url": "https://example.com/web"},
    {"id": 3, "url": "https://example.com/web/?tab=1#x"},
  ]
  assert find_reusable_tab(tabs, "https://example.com/web", "similar")["id"] == 2
  assert find_reusable_tab(tabs, "https://example.com/", "similar")["id"] == 2

def test_matching_works_on_sdk_tab_objects():
  from browser_cli.models import Tab

  tabs = [Tab(id=4, window_id=1, active=False, url="https://example.com/app?a=1")]
  assert find_reusable_tab(tabs, "https://example.com/app/#top?", "none") is None
  assert find_reusable_tab(tabs, "https://example.com/app?a=1", "similar").id == 4

def test_navigation_is_skipped_only_for_the_same_page():
  assert not needs_navigation("https://example.com/app/", "https://example.com/app#top")
  assert needs_navigation("https://example.com/app", "https://example.com/app/next")
  assert needs_navigation(None, "https://example.com/app")