from devplacepy.utils import hash_password, verify_password, generate_uid, slugify, time_ago, level_for_xp, badge_info
from datetime import datetime, timedelta, timezone


def test_hash_password_returns_string():
    result = hash_password("test123")
    assert isinstance(result, str)
    assert len(result) > 20


def test_verify_password_correct():
    hashed = hash_password("correct-password")
    assert verify_password("correct-password", hashed) is True


def test_verify_password_wrong():
    hashed = hash_password("correct-password")
    assert verify_password("wrong-password", hashed) is False


def test_generate_uid_is_unique():
    uid1 = generate_uid()
    uid2 = generate_uid()
    assert uid1 != uid2


def test_generate_uid_format():
    uid = generate_uid()
    assert isinstance(uid, str)
    assert len(uid) == 36  # UUID v4 format


def test_slugify_basic():
    assert slugify("Hello World") == "hello-world"


def test_slugify_special_chars():
    assert slugify("Hello! World???") == "hello-world"


def test_slugify_multiple_dashes():
    assert slugify("hello---world") == "hello-world"


def test_slugify_leading_trailing():
    assert slugify("--hello--") == "hello"


def test_time_ago_just_now():
    now = datetime.now(timezone.utc).isoformat()
    result = time_ago(now)
    assert result == "just now"


def test_time_ago_minutes():
    dt = (datetime.now(timezone.utc) - timedelta(minutes=5)).isoformat()
    result = time_ago(dt)
    assert "m ago" in result


def test_time_ago_hours():
    dt = (datetime.now(timezone.utc) - timedelta(hours=3)).isoformat()
    result = time_ago(dt)
    assert "h ago" in result


def test_time_ago_days():
    dt = (datetime.now(timezone.utc) - timedelta(days=5)).isoformat()
    result = time_ago(dt)
    assert "d ago" in result


def test_time_ago_months():
    dt = (datetime.now(timezone.utc) - timedelta(days=60)).isoformat()
    result = time_ago(dt)
    assert "/" in result


def test_time_ago_years():
    dt = (datetime.now(timezone.utc) - timedelta(days=400)).isoformat()
    result = time_ago(dt)
    assert "/" in result


def test_level_for_xp_boundaries():
    assert level_for_xp(0) == 1
    assert level_for_xp(99) == 1
    assert level_for_xp(100) == 2
    assert level_for_xp(250) == 3
    assert level_for_xp(450) == 5


def test_level_for_xp_negative():
    assert level_for_xp(-50) == 1


def test_badge_info_known():
    meta = badge_info("Star Author")
    assert meta["icon"]
    assert meta["description"] == "Earned 100 stars"


def test_badge_info_unknown_fallback():
    meta = badge_info("Nonexistent Badge")
    assert meta["icon"]
    assert meta["description"] == "Nonexistent Badge"


from devplacepy.utils import (
    safe_next, strip_html, extract_mentions, award_badge, award_xp,
    check_milestone_badges, create_mention_notifications,
)
from devplacepy.database import get_table


def _seed_user(role="Member", xp=0, level=1):
    uid = generate_uid()
    username = f"ut_{uid[:8]}"
    get_table("users").insert({
        "uid": uid, "username": username, "email": f"{username}@t.dev",
        "role": role, "xp": xp, "level": level,
        "created_at": datetime.now(timezone.utc).isoformat(),
    })
    return uid, username


def test_safe_next_allows_internal_rejects_external():
    assert safe_next("/gists") == "/gists"
    assert safe_next("//evil.com") == "/feed"
    assert safe_next("http://evil.com") == "/feed"
    assert safe_next(None) == "/feed"


def test_strip_html_removes_tags_and_unescapes():
    assert strip_html("<b>Hi</b> &amp; bye") == "Hi & bye"
    assert strip_html("") == ""


def test_extract_mentions_finds_usernames():
    mentions = extract_mentions("hi @alice and (@bob_1), mail a@b.com")
    assert mentions == ["alice", "bob_1"]


def test_award_badge_is_idempotent(local_db):
    uid, _ = _seed_user()
    assert award_badge(uid, "First Post") is True
    assert award_badge(uid, "First Post") is False


def test_award_xp_levels_up_and_notifies(local_db):
    uid, _ = _seed_user(xp=95, level=1)
    result = award_xp(uid, 10)
    assert result["xp"] == 105
    assert result["level"] == 2
    assert result["leveled_up"] is True
    assert get_table("notifications").count(user_uid=uid, type="level") == 1


def test_check_milestone_badges_awards_prolific(local_db):
    uid, _ = _seed_user()
    posts = get_table("posts")
    for index in range(10):
        post_uid = generate_uid()
        posts.insert({"uid": post_uid, "user_uid": uid, "slug": f"{post_uid[:8]}-p",
                      "title": None, "content": f"milestone post {index}", "topic": "random",
                      "project_uid": None, "image": None, "stars": 0,
                      "created_at": datetime.now(timezone.utc).isoformat()})
    awarded = check_milestone_badges(uid)
    assert "Prolific" in awarded
    assert get_table("badges").find_one(user_uid=uid, badge_name="Prolific") is not None


def test_create_mention_notifications_targets_known_users(local_db):
    actor_uid, actor_name = _seed_user()
    target_uid, target_name = _seed_user()
    create_mention_notifications(
        f"hey @{target_name} and @{actor_name} and @ghost_zzz",
        actor_uid, "/posts/x",
    )
    assert get_table("notifications").count(user_uid=target_uid, type="mention") == 1
    assert get_table("notifications").count(user_uid=actor_uid, type="mention") == 0