import tempfile
import zipfile
from io import BytesIO
from pathlib import Path

import pyogrio
import pytest

from utils.kml_to_tab import KmlToTabError, convert_kml_to_tab_zip


MIXED_KML = b"""<?xml version="1.0" encoding="UTF-8"?>
<kml xmlns="http://www.opengis.net/kml/2.2">
  <Document>
    <Placemark>
      <name>Site A</name>
      <description>Point feature</description>
      <Point>
        <coordinates>50.606051,26.261322,0</coordinates>
      </Point>
    </Placemark>
    <Placemark>
      <name>Sector A</name>
      <description>Polygon feature</description>
      <Polygon>
        <outerBoundaryIs>
          <LinearRing>
            <coordinates>
              50.606051,26.261322,0
              50.607051,26.261322,0
              50.607051,26.262322,0
              50.606051,26.261322,0
            </coordinates>
          </LinearRing>
        </outerBoundaryIs>
      </Polygon>
    </Placemark>
  </Document>
</kml>
"""

RSRP_KML = b"""<?xml version="1.0" encoding="UTF-8"?>
<kml xmlns="http://www.opengis.net/kml/2.2">
  <Document xmlns="">
    <Style id="normalPlacemark">
      <IconStyle>
        <color>ff00ffff</color>
        <scale>0.5</scale>
        <Icon>
          <href>http://kml-icons.actix.com/Dot.png</href>
        </Icon>
      </IconStyle>
    </Style>
    <Placemark>
      <description>DriveTest-LTE_UE_RSRP
-105.599998474121</description>
      <styleUrl>normalPlacemark</styleUrl>
      <Point>
        <coordinates>-5.687045,11.305296</coordinates>
      </Point>
    </Placemark>
    <Style id="normalPlacemark">
      <IconStyle>
        <color>ff0000ff</color>
        <scale>0.5</scale>
        <Icon>
          <href>http://kml-icons.actix.com/Dot.png</href>
        </Icon>
      </IconStyle>
    </Style>
    <Placemark>
      <description>DriveTest-LTE_UE_RSRP
-116.099998474121</description>
      <styleUrl>normalPlacemark</styleUrl>
      <Point>
        <coordinates>-5.687901,11.305419</coordinates>
      </Point>
    </Placemark>
  </Document>
</kml>
"""

STRUCTURED_DESCRIPTION_KML = b"""<?xml version="1.0" encoding="UTF-8"?>
<kml xmlns="http://www.opengis.net/kml/2.2">
  <Document>
    <Placemark>
      <name>Busaiteen_1</name>
      <description>&lt;b&gt;Sector Details:&lt;/b&gt;&lt;br&gt;&lt;b&gt;code:&lt;/b&gt; 1004&lt;br&gt;&lt;b&gt;name:&lt;/b&gt; Busaiteen_1&lt;br&gt;&lt;b&gt;Azimut:&lt;/b&gt; 30&lt;br&gt;&lt;b&gt;Longitude:&lt;/b&gt; 50.606051&lt;br&gt;&lt;b&gt;Latitude:&lt;/b&gt; 26.261322&lt;br&gt;&lt;b&gt;size:&lt;/b&gt; 1000&lt;br&gt;&lt;b&gt;color:&lt;/b&gt; 7fff0000&lt;br&gt;</description>
      <Polygon>
        <outerBoundaryIs>
          <LinearRing>
            <coordinates>
              50.606051,26.261322,0
              50.607051,26.261322,0
              50.607051,26.262322,0
              50.606051,26.261322,0
            </coordinates>
          </LinearRing>
        </outerBoundaryIs>
      </Polygon>
    </Placemark>
  </Document>
</kml>
"""


def test_convert_kml_to_tab_zip_splits_mixed_geometries():
    result = convert_kml_to_tab_zip(MIXED_KML, "mixed sample.kml")

    with zipfile.ZipFile(BytesIO(result.zip_bytes)) as zf:
        names = sorted(zf.namelist())

    assert "mixed_sample_point.tab" in names
    assert "mixed_sample_point.dat" in names
    assert "mixed_sample_point.map" in names
    assert "mixed_sample_point.id" in names
    assert "mixed_sample_polygon.tab" in names
    assert "mixed_sample_polygon.dat" in names
    assert "mixed_sample_polygon.map" in names
    assert "mixed_sample_polygon.id" in names
    assert [(layer.geometry_type, layer.feature_count) for layer in result.layers] == [
        ("Point", 1),
        ("Polygon", 1),
    ]


def test_convert_kml_to_tab_zip_preserves_measurement_values():
    result = convert_kml_to_tab_zip(RSRP_KML, "rsrp.kml")

    with tempfile.TemporaryDirectory() as tmp_dir_name:
        tmp_dir = Path(tmp_dir_name)
        with zipfile.ZipFile(BytesIO(result.zip_bytes)) as zf:
            zf.extractall(tmp_dir)

        metadata, _fids, _geometry, field_data = pyogrio.raw.read(tmp_dir / "rsrp.tab")

    fields = metadata["fields"].tolist()
    data = dict(zip(fields, field_data))

    assert "value" in fields
    assert "metric" not in fields
    assert "parameter" not in fields
    assert "legend" not in fields
    assert "kml_color" not in fields
    assert "style_rgb" not in fields
    assert data["value"].tolist() == [-105.599998474121, -116.099998474121]


def test_convert_kml_to_tab_zip_expands_structured_description_fields():
    result = convert_kml_to_tab_zip(STRUCTURED_DESCRIPTION_KML, "sectors.kml")

    with tempfile.TemporaryDirectory() as tmp_dir_name:
        tmp_dir = Path(tmp_dir_name)
        with zipfile.ZipFile(BytesIO(result.zip_bytes)) as zf:
            zf.extractall(tmp_dir)

        metadata, _fids, _geometry, field_data = pyogrio.raw.read(
            tmp_dir / "sectors.tab"
        )

    fields = metadata["fields"].tolist()
    data = dict(zip(fields, field_data))

    assert "value" not in fields
    for field in [
        "code",
        "description_name",
        "Azimut",
        "Longitude",
        "Latitude",
        "size",
        "color",
    ]:
        assert field in fields
    assert data["code"].tolist() == ["1004"]
    assert data["description_name"].tolist() == ["Busaiteen_1"]
    assert data["Azimut"].tolist() == ["30"]
    assert data["Longitude"].tolist() == ["50.606051"]
    assert data["Latitude"].tolist() == ["26.261322"]
    assert data["size"].tolist() == ["1000"]
    assert data["color"].tolist() == ["7fff0000"]


def test_convert_kml_to_tab_zip_rejects_empty_input():
    with pytest.raises(KmlToTabError, match="vide"):
        convert_kml_to_tab_zip(b"", "empty.kml")