# pyright: reportGeneralTypeIssues=false

from collections.abc import Generator

import dearpygui.dearpygui as dpg
import pytest

import dpg_gauges as dpgg
from dpg_gauges.gauges import LevelGaugeConfig, StatusLightConfig
from dpg_gauges.scales import fill_fraction, fill_span, normalized_span
from dpg_gauges.state import clear_registry, get_gauge_state


@pytest.fixture
def dpg_context() -> Generator[None]:
    clear_registry()
    dpgg.configure()
    dpg.create_context()
    try:
        yield
    finally:
        clear_registry()
        dpg.destroy_context()


def test_bar_geometry_helpers_clamp_and_center() -> None:
    assert fill_fraction(150, 0, 100, clamp=True) == 1.0
    assert fill_span(25, 0, 100) == (0.0, 0.25)
    assert fill_span(-25, -100, 100, fill_mode="centered") == (0.375, 0.5)
    assert fill_span(25, -100, 100, fill_mode="centered") == (0.5, 0.625)
    assert normalized_span(90, 10, 0, 100) == (0.1, 0.9)


def test_bar_runtime_renders_fill_thresholds_and_markers(dpg_context: None) -> None:
    threshold = dpgg.ThresholdBand(35, 50, (255, 120, 0, 120))
    marker = dpgg.GaugeMarker(50, (255, 255, 255, 255))
    with dpg.window(label="Bar"):
        dpgg.bar_gauge(
            tag="boost",
            label="Boost",
            value=25,
            min_value=0,
            max_value=50,
            width=240,
            height=90,
            thresholds=[threshold],
            markers=[marker],
        )

    debug = dpgg.get_gauge_debug_state("boost")
    assert "boost__bar_fill" in debug["renderer"]["layers"]["dynamic"]
    assert "boost__threshold_0" in debug["renderer"]["layers"]["thresholds"]
    assert "boost__marker_0" in debug["renderer"]["layers"]["markers"]

    dpgg.set_value("boost", 100)
    state = get_gauge_state("boost")
    assert state.clamped_value == 50
    assert state.displayed_value == 50


def test_level_runtime_uses_vertical_fill(dpg_context: None) -> None:
    with dpg.window(label="Level"):
        dpgg.level_gauge(tag="fuel", label="Fuel", value=75, width=120, height=180)

    debug = dpgg.get_gauge_debug_state("fuel")
    config = get_gauge_state("fuel").config
    assert isinstance(config, LevelGaugeConfig)
    assert config.orientation == "vertical"
    assert "fuel__bar_fill" in debug["renderer"]["layers"]["dynamic"]


def test_status_light_uses_configured_state_text_and_color(dpg_context: None) -> None:
    states = {
        "ok": dpgg.StatusState((0, 220, 120, 255), "OK"),
        "fault": dpgg.StatusState((255, 45, 45, 255), "FAULT"),
    }
    with dpg.window(label="Status"):
        dpgg.status_light(tag="ecu", label="ECU", state="ok", states=states, width=180, height=70)

    debug = dpgg.get_gauge_debug_state("ecu")
    assert "ecu__status_light" in debug["renderer"]["layers"]["dynamic"]
    assert "ecu__status_text" in debug["renderer"]["layers"]["text"]

    dpgg.configure_gauge("ecu", state="fault")
    config = get_gauge_state("ecu").config
    assert isinstance(config, StatusLightConfig)
    assert config.state == "fault"
    assert get_gauge_state("ecu").dirty == 0