"""
Tests for backend/models.py (Pydantic v2 validation).
No DB or network calls — pure unit tests.
"""
from __future__ import annotations

import os

os.environ.setdefault("BOT_TOKEN", "test-bot-token")
os.environ.setdefault("CHAT_ID", "-1001234567890")
os.environ.setdefault("WEBHOOK_SECRET", "test-webhook-secret")
os.environ.setdefault("WEBHOOK_URL", "https://example.com/api/webhook/telegram")
os.environ.setdefault("FRONTEND_ORIGIN", "http://localhost:3000")

import pytest
from pydantic import ValidationError

from backend.models import GeoData, RegisterRequest, SignalRequest


# ---------------------------------------------------------------------------
# RegisterRequest
# ---------------------------------------------------------------------------

def test_register_request_valid():
    req = RegisterRequest(uuid="550e8400-e29b-41d4-a716-446655440000", name="Alice")
    assert req.uuid == "550e8400-e29b-41d4-a716-446655440000"
    assert req.name == "Alice"


def test_register_request_empty_name():
    with pytest.raises(ValidationError):
        RegisterRequest(uuid="550e8400-e29b-41d4-a716-446655440000", name="")


def test_register_request_missing_uuid():
    with pytest.raises(ValidationError):
        RegisterRequest(name="Alice")  # type: ignore[call-arg]


def test_register_request_empty_uuid():
    with pytest.raises(ValidationError):
        RegisterRequest(uuid="", name="Alice")


def test_register_request_name_max_length():
    """name longer than 100 chars raises ValidationError."""
    with pytest.raises(ValidationError):
        RegisterRequest(uuid="550e8400-e29b-41d4-a716-446655440000", name="x" * 101)


def test_register_request_name_exactly_100():
    req = RegisterRequest(uuid="550e8400-e29b-41d4-a716-446655440000", name="x" * 100)
    assert len(req.name) == 100


# ---------------------------------------------------------------------------
# GeoData
# ---------------------------------------------------------------------------

def test_geo_data_valid():
    geo = GeoData(lat=55.7558, lon=37.6173, accuracy=15.0)
    assert geo.lat == 55.7558
    assert geo.lon == 37.6173
    assert geo.accuracy == 15.0


def test_geo_data_lat_out_of_range_high():
    with pytest.raises(ValidationError):
        GeoData(lat=90.1, lon=0.0, accuracy=10.0)


def test_geo_data_lat_out_of_range_low():
    with pytest.raises(ValidationError):
        GeoData(lat=-90.1, lon=0.0, accuracy=10.0)


def test_geo_data_lon_out_of_range_high():
    with pytest.raises(ValidationError):
        GeoData(lat=0.0, lon=180.1, accuracy=10.0)


def test_geo_data_lon_out_of_range_low():
    with pytest.raises(ValidationError):
        GeoData(lat=0.0, lon=-180.1, accuracy=10.0)


def test_geo_data_accuracy_zero():
    """accuracy must be strictly > 0."""
    with pytest.raises(ValidationError):
        GeoData(lat=0.0, lon=0.0, accuracy=0.0)


def test_geo_data_boundary_values():
    """Boundary values -90/90 lat and -180/180 lon are valid."""
    geo = GeoData(lat=90.0, lon=180.0, accuracy=1.0)
    assert geo.lat == 90.0
    assert geo.lon == 180.0


# ---------------------------------------------------------------------------
# SignalRequest
# ---------------------------------------------------------------------------

def test_signal_request_valid():
    req = SignalRequest(
        user_id="550e8400-e29b-41d4-a716-446655440000",
        timestamp=1742478000000,
        geo={"lat": 55.7558, "lon": 37.6173, "accuracy": 15.0},
    )
    assert req.user_id == "550e8400-e29b-41d4-a716-446655440000"
    assert req.timestamp == 1742478000000
    assert req.geo is not None
    assert req.geo.lat == 55.7558


def test_signal_request_no_geo():
    req = SignalRequest(
        user_id="550e8400-e29b-41d4-a716-446655440000",
        timestamp=1742478000000,
        geo=None,
    )
    assert req.geo is None


def test_signal_request_missing_user_id():
    with pytest.raises(ValidationError):
        SignalRequest(timestamp=1742478000000)  # type: ignore[call-arg]


def test_signal_request_empty_user_id():
    with pytest.raises(ValidationError):
        SignalRequest(user_id="", timestamp=1742478000000)


def test_signal_request_timestamp_zero():
    """timestamp must be > 0."""
    with pytest.raises(ValidationError):
        SignalRequest(user_id="550e8400-e29b-41d4-a716-446655440000", timestamp=0)


def test_signal_request_timestamp_negative():
    with pytest.raises(ValidationError):
        SignalRequest(user_id="550e8400-e29b-41d4-a716-446655440000", timestamp=-1)