#!/usr/bin/env pytest
# -*- coding: utf-8 -*-
###############################################################################
#
# Project:  GDAL/OGR Test Suite
# Purpose:  Test write functionality for KMLSUPEROVERLAY driver.
# Author:   Even Rouault <even dot rouault at spatialys.com>
#
###############################################################################
# Copyright (c) 2010-2014, Even Rouault <even dot rouault at spatialys.com>
#
# SPDX-License-Identifier: MIT
###############################################################################

import os
import shutil

import gdaltest
import pytest

from osgeo import gdal

pytestmark = pytest.mark.require_driver("KMLSUPEROVERLAY")


@pytest.fixture(scope="module", autouse=True)
def setup_and_cleanup():

    yield

    with gdaltest.disable_exceptions():
        gdal.Unlink("/vsimem/0/0/0.png")
        gdal.Unlink("/vsimem/0/0/0.kml")
        gdal.Unlink("/vsimem/0/0")
        gdal.Unlink("/vsimem/0")
        gdal.Unlink("/vsimem/kmlout.kml")
        gdal.Unlink("/vsimem/kmlout.kmz")


###############################################################################
# Test CreateCopy() to a KMZ file


def test_kmlsuperoverlay_1():

    tst = gdaltest.GDALTest(
        "KMLSUPEROVERLAY", "small_world.tif", 1, 30111, options=["FORMAT=PNG"]
    )

    tst.testCreateCopy(new_filename="/vsimem/kmlout.kmz")


###############################################################################
# Test CreateCopy() to a KML file


def test_kmlsuperoverlay_2():

    tst = gdaltest.GDALTest(
        "KMLSUPEROVERLAY", "small_world.tif", 1, 30111, options=["FORMAT=PNG"]
    )

    tst.testCreateCopy(new_filename="/vsimem/kmlout.kml")


###############################################################################
# Test CreateCopy() to a KML file


def test_kmlsuperoverlay_3():

    src_ds = gdal.Open("data/utm.tif")
    ds = gdal.GetDriverByName("KMLSUPEROVERLAY").CreateCopy("tmp/tmp.kml", src_ds)
    del ds
    src_ds = None

    f = gdal.VSIFOpenL("tmp/tmp.kml", "rb")
    if f:
        data = gdal.VSIFReadL(1, 10000, f).decode("ascii")
        gdal.VSIFCloseL(f)
    assert "<north>33.903" in data, data
    assert "<south>33.625" in data, data
    assert "<east>-117.309" in data, data
    assert "<west>-117.639" in data, data

    filelist = [
        "tmp/0/0/0.jpg",
        "tmp/0/0/0.kml",
        "tmp/1/0/0.jpg",
        "tmp/1/0/0.kml",
        "tmp/1/0/1.jpg",
        "tmp/1/0/1.kml",
        "tmp/1/1/0.jpg",
        "tmp/1/1/0.kml",
        "tmp/1/1/1.jpg",
        "tmp/1/1/1.kml",
        "tmp/tmp.kml",
    ]
    for filename in filelist:
        try:
            os.remove(filename)
        except OSError:
            pytest.fail("Missing file: %s" % filename)

    shutil.rmtree("tmp/0")
    shutil.rmtree("tmp/1")


###############################################################################
# Test overviews


@pytest.mark.skipif(
    not gdaltest.vrt_has_open_support(),
    reason="VRT driver open missing",
)
def test_kmlsuperoverlay_4():

    vrt_xml = """<VRTDataset rasterXSize="800" rasterYSize="400">
  <SRS>GEOGCS["WGS 84",DATUM["WGS_1984",SPHEROID["WGS 84",6378137,298.257223563,AUTHORITY["EPSG","7030"]],AUTHORITY["EPSG","6326"]],PRIMEM["Greenwich",0],UNIT["degree",0.0174532925199433],AUTHORITY["EPSG","4326"]]</SRS>
  <GeoTransform> -1.8000000000000000e+02,  4.5000000000000001e-01,  0.0000000000000000e+00,  9.0000000000000000e+01,  0.0000000000000000e+00, -4.5000000000000001e-01</GeoTransform>
  <Metadata>
    <MDI key="AREA_OR_POINT">Area</MDI>
  </Metadata>
  <Metadata domain="IMAGE_STRUCTURE">
    <MDI key="INTERLEAVE">BAND</MDI>
  </Metadata>
  <VRTRasterBand dataType="Byte" band="1">
    <Metadata />
    <ColorInterp>Red</ColorInterp>
    <SimpleSource>
      <SourceFilename relativeToVRT="0">data/small_world.tif</SourceFilename>
      <SourceBand>1</SourceBand>
      <SourceProperties RasterXSize="400" RasterYSize="200" DataType="Byte" BlockXSize="400" BlockYSize="20" />
      <SrcRect xOff="0" yOff="0" xSize="400" ySize="200" />
      <DstRect xOff="0" yOff="0" xSize="800" ySize="400" />
    </SimpleSource>
  </VRTRasterBand>
  <VRTRasterBand dataType="Byte" band="2">
    <Metadata />
    <ColorInterp>Green</ColorInterp>
    <SimpleSource>
      <SourceFilename relativeToVRT="0">data/small_world.tif</SourceFilename>
      <SourceBand>2</SourceBand>
      <SourceProperties RasterXSize="400" RasterYSize="200" DataType="Byte" BlockXSize="400" BlockYSize="20" />
      <SrcRect xOff="0" yOff="0" xSize="400" ySize="200" />
      <DstRect xOff="0" yOff="0" xSize="800" ySize="400" />
    </SimpleSource>
  </VRTRasterBand>
  <VRTRasterBand dataType="Byte" band="3">
    <Metadata />
    <ColorInterp>Blue</ColorInterp>
    <SimpleSource>
      <SourceFilename relativeToVRT="0">data/small_world.tif</SourceFilename>
      <SourceBand>3</SourceBand>
      <SourceProperties RasterXSize="400" RasterYSize="200" DataType="Byte" BlockXSize="400" BlockYSize="20" />
      <SrcRect xOff="0" yOff="0" xSize="400" ySize="200" />
      <DstRect xOff="0" yOff="0" xSize="800" ySize="400" />
    </SimpleSource>
  </VRTRasterBand>
</VRTDataset>"""

    gdal.FileFromMemBuffer("/vsimem/src.vrt", vrt_xml)

    src_ds = gdal.Open("/vsimem/src.vrt")
    ds = gdal.GetDriverByName("KMLSUPEROVERLAY").CreateCopy(
        "/vsimem/kmlsuperoverlay_4.kmz",
        src_ds,
        options=[
            "FORMAT=PNG",
            "NAME=myname",
            "DESCRIPTION=mydescription",
            "ALTITUDE=10",
            "ALTITUDEMODE=absolute",
        ],
    )
    assert ds.GetMetadataItem("NAME") == "myname"
    assert ds.GetMetadataItem("DESCRIPTION") == "mydescription"
    if ds.GetRasterBand(1).GetOverviewCount() != 1:
        ds = None
        src_ds = None
        gdal.Unlink("/vsimem/src.vrt")
        gdal.Unlink("/vsimem/kmlsuperoverlay_4.kmz")
        pytest.fail()
    if ds.GetRasterBand(1).GetOverview(0).Checksum() != 30111:
        ds = None
        src_ds = None
        gdal.Unlink("/vsimem/src.vrt")
        gdal.Unlink("/vsimem/kmlsuperoverlay_4.kmz")
        pytest.fail()
    if ds.GetRasterBand(1).Checksum() != src_ds.GetRasterBand(1).Checksum():
        ds = None
        src_ds = None
        gdal.Unlink("/vsimem/src.vrt")
        gdal.Unlink("/vsimem/kmlsuperoverlay_4.kmz")
        pytest.fail()

    # Test fix for #6311
    vrt_ds = gdal.GetDriverByName("VRT").CreateCopy("", ds)
    got_data = vrt_ds.ReadRaster(0, 0, 800, 400, 200, 100)
    ref_data = ds.ReadRaster(0, 0, 800, 400, 200, 100)
    vrt_ds = None
    if got_data != ref_data:
        ds = None
        src_ds = None
        gdal.Unlink("/vsimem/src.vrt")
        gdal.Unlink("/vsimem/kmlsuperoverlay_4.kmz")
        pytest.fail()

    ds = None
    src_ds = None

    gdal.Unlink("/vsimem/src.vrt")
    gdal.Unlink("/vsimem/kmlsuperoverlay_4.kmz")


###############################################################################
# Test that a raster which crosses the anti-meridian will be able to be displayed correctly (#4528)


@pytest.mark.skipif(
    not gdaltest.vrt_has_open_support(),
    reason="VRT driver open missing",
)
def test_kmlsuperoverlay_5():

    from xml.etree import ElementTree

    src_ds = gdal.Open(
        """<VRTDataset rasterXSize="512" rasterYSize="512">
  <SRS>PROJCS["WGS 84 / Mercator 41",
    GEOGCS["WGS 84",
        DATUM["WGS_1984",
            SPHEROID["WGS 84",6378137,298.257223563,
                AUTHORITY["EPSG","7030"]],
            AUTHORITY["EPSG","6326"]],
        PRIMEM["Greenwich",0],
        UNIT["degree",0.0174532925199433],
        AUTHORITY["EPSG","4326"]],
    PROJECTION["Mercator_1SP"],
    PARAMETER["central_meridian",100],
    PARAMETER["scale_factor",1],
    PARAMETER["false_easting",0],
    PARAMETER["false_northing",0],
    UNIT["metre",1,
        AUTHORITY["EPSG","9001"]],
    AUTHORITY["EPSG","3994"]]
</SRS>
  <GeoTransform>  8.8060000000000000e+06,  3.4960937500000000e+02,  0.0000000000000000e+00, -3.6200000000000000e+06,  0.0000000000000000e+00, -3.5937500000000000e+02</GeoTransform>
  <VRTRasterBand dataType="Byte" band="1">
    <SimpleSource>
      <SourceFilename relativeToVRT="1">data/utm.tif</SourceFilename>
      <SourceBand>1</SourceBand>
      <SrcRect xOff="0" yOff="0" xSize="512" ySize="512" />
      <DstRect xOff="0" yOff="0" xSize="512" ySize="512" />
    </SimpleSource>
  </VRTRasterBand>
</VRTDataset>"""
    )
    ds = gdal.GetDriverByName("KMLSUPEROVERLAY").CreateCopy(
        "tmp/tmp.kml", src_ds, options=["FIX_ANTIMERIDIAN=YES"]
    )
    del ds
    src_ds = None

    files = [
        "tmp/tmp.kml",
        "tmp/0/0/0.kml",
        "tmp/1/0/0.kml",
        "tmp/1/0/1.kml",
        "tmp/1/1/0.kml",
        "tmp/1/1/1.kml",
    ]

    for f in files:
        res = ElementTree.parse(f)
        for tag in res.findall(".//{http://earth.google.com/kml/2.1}LatLonAltBox"):
            east = tag.find("{http://earth.google.com/kml/2.1}east").text
            west = tag.find("{http://earth.google.com/kml/2.1}west").text

            assert float(east) >= float(
                west
            ), "East is less than west in LatLonAltBox %s, (%s < %s)" % (f, east, west)

    shutil.rmtree("tmp/0")
    shutil.rmtree("tmp/1")
    os.remove("tmp/tmp.kml")


###############################################################################
# Test raster KML with alternate structure (such as http://opentopo.sdsc.edu/files/Haiti/NGA_Haiti_LiDAR2.kmz))


def test_kmlsuperoverlay_6():

    ds = gdal.Open("data/kml/kmlimage.kmz")
    assert ds.GetProjectionRef().find("WGS_1984") >= 0
    got_gt = ds.GetGeoTransform()
    ref_gt = [
        1.2554125761846773,
        1.6640895429971981e-05,
        0.0,
        43.452120815728101,
        0.0,
        -1.0762348187666334e-05,
    ]
    for i in range(6):
        assert got_gt[i] == pytest.approx(ref_gt[i], abs=1e-6)
    for i in range(4):
        cs = ds.GetRasterBand(i + 1).Checksum()
        assert cs == 47673
        assert (
            ds.GetRasterBand(i + 1).GetRasterColorInterpretation()
            == gdal.GCI_RedBand + i
        )
    assert ds.GetRasterBand(1).GetOverviewCount() == 1
    cs = ds.GetRasterBand(1).GetOverview(0).Checksum()
    assert cs == 61070


###############################################################################
# Test raster KML with single Overlay (such as https://trac.osgeo.org/gdal/ticket/6712)


def test_kmlsuperoverlay_7():

    ds = gdal.Open("data/kml/small_world.kml")
    assert ds.GetProjectionRef().find("WGS_1984") >= 0
    got_gt = ds.GetGeoTransform()
    ref_gt = [-180.0, 0.9, 0.0, 90.0, 0.0, -0.9]
    for i in range(6):
        assert got_gt[i] == pytest.approx(ref_gt[i], abs=1e-6)

    cs = ds.GetRasterBand(1).Checksum()
    assert cs == 30111
    assert ds.GetRasterBand(1).GetRasterColorInterpretation() == gdal.GCI_RedBand


###############################################################################
# Test raster KML with single Overlay (such as https://issues.qgis.org/issues/20173)


def test_kmlsuperoverlay_single_overlay_document_folder_pct():

    ds = gdal.Open("data/kml/small_world_in_document_folder_pct.kml")
    assert ds.GetProjectionRef().find("WGS_1984") >= 0
    got_gt = ds.GetGeoTransform()
    ref_gt = [-180.0, 0.9, 0.0, 90.0, 0.0, -0.9]
    for i in range(6):
        assert got_gt[i] == pytest.approx(ref_gt[i], abs=1e-6)

    assert ds.GetRasterBand(1).GetRasterColorInterpretation() == gdal.GCI_PaletteIndex
    assert ds.GetRasterBand(1).GetColorTable()


###############################################################################
# Test raster KML with single Overlay, with no Folder element


def test_kmlsuperoverlay_single_overlay_document_pct():

    ds = gdal.Open("data/kml/small_world_in_document_pct.kml")
    assert ds.GetProjectionRef().find("WGS_1984") >= 0
    got_gt = ds.GetGeoTransform()
    ref_gt = [-180.0, 0.9, 0.0, 90.0, 0.0, -0.9]
    for i in range(6):
        assert got_gt[i] == pytest.approx(ref_gt[i], abs=1e-6)

    assert ds.GetRasterBand(1).GetRasterColorInterpretation() == gdal.GCI_PaletteIndex
    assert ds.GetRasterBand(1).GetColorTable()


###############################################################################
# Test raster KML with gx:LatLonQuad


def test_kmlsuperoverlay_gx_latlonquad():

    ds = gdal.Open("data/kml/small_world_latlonquad.kml")
    assert ds.GetProjectionRef().find("WGS_1984") >= 0
    got_gt = ds.GetGeoTransform()
    ref_gt = [-180.0, 0.9, 0.0, 90.0, 0.0, -0.9]
    for i in range(6):
        assert got_gt[i] == pytest.approx(ref_gt[i], abs=1e-6)


###############################################################################
# Test that a raster with lots of blank space doesn't have unnecessary child
# KML/PNG files in transparent areas


@pytest.mark.skipif(
    not gdaltest.vrt_has_open_support(),
    reason="VRT driver open missing",
)
def test_kmlsuperoverlay_8():

    # a large raster with actual data on each end and blank space in between
    src_ds = gdal.Open(
        """<VRTDataset rasterXSize="2048" rasterYSize="512">
  <SRS>GEOGCS["WGS 84",DATUM["WGS_1984",SPHEROID["WGS 84",6378137,298.257223563,AUTHORITY["EPSG","7030"]],TOWGS84[0,0,0,0,0,0,0],AUTHORITY["EPSG","6326"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9108"]],AUTHORITY["EPSG","4326"]]</SRS>
  <GeoTransform>  0,  0.01,  0,  0,  0, 0.01</GeoTransform>
  <VRTRasterBand dataType="Byte" band="1">
    <ColorInterp>Gray</ColorInterp>
    <SimpleSource>
      <SourceFilename relativeToVRT="1">data/utm.tif</SourceFilename>
      <SourceBand>1</SourceBand>
      <SourceProperties RasterXSize="512" RasterYSize="512" DataType="Byte" BlockXSize="512" BlockYSize="16" />
      <SrcRect xOff="0" yOff="0" xSize="512" ySize="512" />
      <DstRect xOff="0" yOff="0" xSize="512" ySize="512" />
    </SimpleSource>
    <SimpleSource>
      <SourceFilename relativeToVRT="1">data/utm.tif</SourceFilename>
      <SourceBand>1</SourceBand>
      <SourceProperties RasterXSize="512" RasterYSize="512" DataType="Byte" BlockXSize="512" BlockYSize="16" />
      <SrcRect xOff="0" yOff="0" xSize="512" ySize="512" />
      <DstRect xOff="1536" yOff="0" xSize="512" ySize="512" />
    </SimpleSource>
  </VRTRasterBand>
  <VRTRasterBand dataType="Byte" band="2">
    <ColorInterp>Gray</ColorInterp>
    <SimpleSource>
      <SourceFilename relativeToVRT="1">data/utm.tif</SourceFilename>
      <SourceBand>1</SourceBand>
      <SourceProperties RasterXSize="512" RasterYSize="512" DataType="Byte" BlockXSize="512" BlockYSize="16" />
      <SrcRect xOff="0" yOff="0" xSize="512" ySize="512" />
      <DstRect xOff="0" yOff="0" xSize="512" ySize="512" />
    </SimpleSource>
    <SimpleSource>
      <SourceFilename relativeToVRT="1">data/utm.tif</SourceFilename>
      <SourceBand>1</SourceBand>
      <SourceProperties RasterXSize="512" RasterYSize="512" DataType="Byte" BlockXSize="512" BlockYSize="16" />
      <SrcRect xOff="0" yOff="0" xSize="512" ySize="512" />
      <DstRect xOff="1536" yOff="0" xSize="512" ySize="512" />
    </SimpleSource>
  </VRTRasterBand>
  <VRTRasterBand dataType="Byte" band="3">
    <ColorInterp>Gray</ColorInterp>
    <SimpleSource>
      <SourceFilename relativeToVRT="1">data/utm.tif</SourceFilename>
      <SourceBand>1</SourceBand>
      <SourceProperties RasterXSize="512" RasterYSize="512" DataType="Byte" BlockXSize="512" BlockYSize="16" />
      <SrcRect xOff="0" yOff="0" xSize="512" ySize="512" />
      <DstRect xOff="0" yOff="0" xSize="512" ySize="512" />
    </SimpleSource>
    <SimpleSource>
      <SourceFilename relativeToVRT="1">data/utm.tif</SourceFilename>
      <SourceBand>1</SourceBand>
      <SourceProperties RasterXSize="512" RasterYSize="512" DataType="Byte" BlockXSize="512" BlockYSize="16" />
      <SrcRect xOff="0" yOff="0" xSize="512" ySize="512" />
      <DstRect xOff="1536" yOff="0" xSize="512" ySize="512" />
    </SimpleSource>
  </VRTRasterBand>
  <VRTRasterBand dataType="Byte" band="4">
    <ColorInterp>Alpha</ColorInterp>
    <ComplexSource>
      <SourceFilename relativeToVRT="1">data/utm.tif</SourceFilename>
      <SourceBand>1</SourceBand>
      <SourceProperties RasterXSize="512" RasterYSize="512" DataType="Byte" BlockXSize="512" BlockYSize="16" />
      <SrcRect xOff="0" yOff="0" xSize="512" ySize="512" />
      <DstRect xOff="0" yOff="0" xSize="512" ySize="512" />
      <ScaleOffset>255</ScaleOffset>
      <ScaleRatio>0</ScaleRatio>
    </ComplexSource>
    <ComplexSource>
      <SourceFilename relativeToVRT="1">data/utm.tif</SourceFilename>
      <SourceBand>1</SourceBand>
      <SourceProperties RasterXSize="512" RasterYSize="512" DataType="Byte" BlockXSize="512" BlockYSize="16" />
      <SrcRect xOff="0" yOff="0" xSize="512" ySize="512" />
      <DstRect xOff="1536" yOff="0" xSize="512" ySize="512" />
      <ScaleOffset>255</ScaleOffset>
      <ScaleRatio>0</ScaleRatio>
    </ComplexSource>
  </VRTRasterBand>
</VRTDataset>"""
    )
    ds = gdal.GetDriverByName("KMLSUPEROVERLAY").CreateCopy(
        "tmp/tmp.kml", src_ds, options=["FORMAT=AUTO"]
    )
    del ds
    src_ds = None

    assert set(os.listdir("tmp/0/0")) == set(("0.kml", "0.png"))
    assert set(os.listdir("tmp/3/1")) == set(
        (
            "0.jpg",
            "0.kml",
            "1.jpg",
            "1.kml",
            "2.jpg",
            "2.kml",
            "3.jpg",
            "3.kml",
            "4.jpg",
            "4.kml",
            "5.jpg",
            "5.kml",
            "6.jpg",
            "6.kml",
            "7.jpg",
            "7.kml",
        )
    )
    assert set(os.listdir("tmp/3/2")) == set()

    shutil.rmtree("tmp/0")
    shutil.rmtree("tmp/1")
    shutil.rmtree("tmp/2")
    shutil.rmtree("tmp/3")
    os.remove("tmp/tmp.kml")
