/****************************************************************************
 Copyright (c) 2019-present Axmol Engine contributors (see AUTHORS.md).

 https://axmol.dev/

 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
 in the Software without restriction, including without limitation the rights
 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 copies of the Software, and to permit persons to whom the Software is
 furnished to do so, subject to the following conditions:

 The above copyright notice and this permission notice shall be included in
 all copies or substantial portions of the Software.

 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 THE SOFTWARE.
 ****************************************************************************/

#include "2d/PlistSpriteSheetLoader.h"

#include "platform/FileUtils.h"
#include "2d/AutoPolygon.h"
#include "2d/SpriteFrameCache.h"
#include "base/NinePatchImageParser.h"
#include "base/NS.h"
#include "base/Macros.h"
#include "base/UTF8.h"
#include "base/Utils.h"
#include "base/Director.h"
#include "renderer/Texture2D.h"
#include "renderer/TextureCache.h"

#include <vector>

using namespace std;

namespace ax
{

void PlistSpriteSheetLoader::load(std::string_view filePath, SpriteFrameCache& cache)
{
    AXASSERT(!filePath.empty(), "plist filename should not be nullptr");

    const auto fullPath = FileUtils::getInstance()->fullPathForFilename(filePath);
    if (fullPath.empty())
    {
        // return if plist file doesn't exist
        AXLOGW("SpriteFrameCache: can not find {}", filePath);
        return;
    }

    auto dict = FileUtils::getInstance()->getValueMapFromFile(fullPath);

    std::string texturePath;

    if (dict.find("metadata") != dict.end())
    {
        auto& metadataDict = dict["metadata"].asValueMap();
        // try to read  texture file name from meta data
        texturePath = metadataDict["textureFileName"].asString();
    }

    if (!texturePath.empty())
    {
        // build texture path relative to plist file
        texturePath = FileUtils::getInstance()->fullPathFromRelativeFile(texturePath, filePath);
    }
    else
    {
        // build texture path by replacing file extension
        texturePath = filePath;

        // remove .xxx
        const auto startPos = texturePath.find_last_of('.');
        if (startPos != string::npos)
        {
            texturePath = texturePath.erase(startPos);
        }

        // append .png
        texturePath = texturePath.append(".png");

        AXLOGD("SpriteFrameCache: Trying to use file {} as texture", texturePath);
    }
    addSpriteFramesWithDictionary(dict, texturePath, filePath, cache);
}

void PlistSpriteSheetLoader::load(std::string_view filePath, Texture2D* texture, SpriteFrameCache& cache)
{
    const auto fullPath = FileUtils::getInstance()->fullPathForFilename(filePath);
    auto dict           = FileUtils::getInstance()->getValueMapFromFile(fullPath);

    addSpriteFramesWithDictionary(dict, texture, filePath, cache);
}

void PlistSpriteSheetLoader::load(std::string_view filePath, std::string_view textureFileName, SpriteFrameCache& cache)
{
    AXASSERT(!textureFileName.empty(), "texture name should not be null");
    const auto fullPath = FileUtils::getInstance()->fullPathForFilename(filePath);
    auto dict           = FileUtils::getInstance()->getValueMapFromFile(fullPath);
    addSpriteFramesWithDictionary(dict, textureFileName, filePath, cache);
}

void PlistSpriteSheetLoader::load(const Data& content, Texture2D* texture, SpriteFrameCache& cache)
{
    if (content.isNull())
    {
        return;
    }

    auto* text        = (char*)content.getBytes();
    const auto length = content.getSize();

    auto dict = FileUtils::getInstance()->getValueMapFromData(text, static_cast<int>(length));
    addSpriteFramesWithDictionary(dict, texture, "by#addSpriteFramesWithFileContent()", cache);
}

void PlistSpriteSheetLoader::reload(std::string_view filePath, SpriteFrameCache& cache)
{
    const auto fullPath = FileUtils::getInstance()->fullPathForFilename(filePath);
    auto dict           = FileUtils::getInstance()->getValueMapFromFile(fullPath);

    std::string texturePath;

    if (dict.find("metadata") != dict.end())
    {
        auto& metadataDict = dict["metadata"].asValueMap();
        // try to read  texture file name from meta data
        texturePath = metadataDict["textureFileName"].asString();
    }

    if (!texturePath.empty())
    {
        // build texture path relative to plist file
        texturePath = FileUtils::getInstance()->fullPathFromRelativeFile(texturePath, filePath);
    }
    else
    {
        // build texture path by replacing file extension
        texturePath = filePath;

        // remove .xxx
        const auto startPos = texturePath.find_last_of('.');
        if (startPos != string::npos)
        {
            texturePath = texturePath.erase(startPos);
        }

        // append .png
        texturePath = texturePath.append(".png");
    }

    Texture2D* texture = nullptr;
    if (Director::getInstance()->getTextureCache()->reloadTexture(texturePath))
    {
        texture = Director::getInstance()->getTextureCache()->getTextureForKey(texturePath);
    }

    if (texture)
    {
        reloadSpriteFramesWithDictionary(dict, texture, filePath, cache);
    }
    else
    {
        AXLOGD("SpriteFrameCache: Couldn't load texture");
    }
}

void PlistSpriteSheetLoader::addSpriteFramesWithDictionary(ValueMap& dictionary,
                                                           Texture2D* texture,
                                                           std::string_view plist,
                                                           SpriteFrameCache& cache)
{
    /*
    Supported Zwoptex Formats:

    ZWTCoordinatesFormatOptionXMLLegacy = 0, // Flash Version
    ZWTCoordinatesFormatOptionXML1_0 = 1, // Desktop Version 0.0 - 0.4b
    ZWTCoordinatesFormatOptionXML1_1 = 2, // Desktop Version 1.0.0 - 1.0.1
    ZWTCoordinatesFormatOptionXML1_2 = 3, // Desktop Version 1.0.2+

    Version 3 with TexturePacker 4.0 polygon mesh packing
    */

    if (dictionary["frames"].getType() != ax::Value::Type::MAP)
        return;

    auto spriteSheet    = std::make_shared<SpriteSheet>();
    spriteSheet->format = getFormat();
    spriteSheet->path   = plist;

    auto& framesDict = dictionary["frames"].asValueMap();
    int format       = 0;

    Vec2 textureSize;

    // get the format
    auto metaItr = dictionary.find("metadata"sv);
    if (metaItr != dictionary.end())
    {
        auto& metadataDict = metaItr->second.asValueMap();
        format             = optValue(metadataDict, "format"sv).asInt();

        if (metadataDict.find("size"sv) != metadataDict.end())
        {
            textureSize = SizeFromString(optValue(metadataDict, "size"sv).asString());
        }
    }

    // check the format
    AXASSERT(format >= 0 && format <= 3,
             "format is not supported for SpriteFrameCache addSpriteFramesWithDictionary:textureFilename:");

    std::vector<std::string> frameAliases;
    auto textureFileName = Director::getInstance()->getTextureCache()->getTextureFilePath(texture);
    Image* image         = nullptr;
    NinePatchImageParser parser;
    for (auto&& iter : framesDict)
    {
        auto& frameDict      = iter.second.asValueMap();
        auto spriteFrameName = iter.first;
        auto* spriteFrame    = cache.findFrame(spriteFrameName);
        if (spriteFrame)
        {
            continue;
        }

        if (format == 0)
        {
            auto x  = optValue(frameDict, "x"sv).asFloat();
            auto y  = optValue(frameDict, "y"sv).asFloat();
            auto w  = optValue(frameDict, "width"sv).asFloat();
            auto h  = optValue(frameDict, "height"sv).asFloat();
            auto ox = optValue(frameDict, "offsetX"sv).asFloat();
            auto oy = optValue(frameDict, "offsetY"sv).asFloat();
            auto ow = optValue(frameDict, "originalWidth"sv).asInt();
            auto oh = optValue(frameDict, "originalHeight"sv).asInt();
            // check ow/oh
            if (!ow || !oh)
            {
                AXLOGW(
                    "WARNING: originalWidth/Height not found on the SpriteFrame. AnchorPoint won't work as "
                    "expected. Regenerate the .plist");
            }
            // abs ow/oh
            ow = std::abs(ow);
            oh = std::abs(oh);
            // create frame
            spriteFrame = SpriteFrame::createWithTexture(texture, Rect(x, y, w, h), false, Vec2(ox, oy),
                                                         Vec2((float)ow, (float)oh));
        }
        else if (format == 1 || format == 2)
        {
            auto frame   = RectFromString(optValue(frameDict, "frame"sv).asString());
            auto rotated = false;

            // rotation
            if (format == 2)
            {
                rotated = optValue(frameDict, "rotated"sv).asBool();
            }

            auto offset     = PointFromString(optValue(frameDict, "offset"sv).asString());
            auto sourceSize = SizeFromString(optValue(frameDict, "sourceSize"sv).asString());

            // create frame
            spriteFrame = SpriteFrame::createWithTexture(texture, frame, rotated, offset, sourceSize);
        }
        else if (format == 3)
        {
            // get values
            auto spriteSize       = SizeFromString(optValue(frameDict, "spriteSize"sv).asString());
            auto spriteOffset     = PointFromString(optValue(frameDict, "spriteOffset"sv).asString());
            auto spriteSourceSize = SizeFromString(optValue(frameDict, "spriteSourceSize"sv).asString());
            auto textureRect      = RectFromString(optValue(frameDict, "textureRect"sv).asString());
            auto textureRotated   = optValue(frameDict, "textureRotated"sv).asBool();

            // get aliases
            auto& aliases = optValue(frameDict, "aliases"sv).asValueVector();

            for (const auto& value : aliases)
            {
                auto oneAlias = value.asString();
                if (std::find(frameAliases.begin(), frameAliases.end(), oneAlias) == frameAliases.end())
                {
                    frameAliases.emplace_back(std::move(oneAlias));
                }
                else
                {
                    AXLOGW("WARNING: an alias with name {} already exists", oneAlias);
                }
            }

            // create frame
            spriteFrame = SpriteFrame::createWithTexture(
                texture, Rect(textureRect.origin.x, textureRect.origin.y, spriteSize.width, spriteSize.height),
                textureRotated, spriteOffset, spriteSourceSize);

            if (frameDict.find("vertices") != frameDict.end())
            {
                using ax::utils::parseIntegerList;
                auto vertices   = parseIntegerList(optValue(frameDict, "vertices"sv).asString());
                auto verticesUV = parseIntegerList(optValue(frameDict, "verticesUV"sv).asString());
                auto indices    = parseIntegerList(optValue(frameDict, "triangles"sv).asString());

                PolygonInfo info;
                initializePolygonInfo(textureSize, spriteSourceSize, vertices, verticesUV, indices, info);
                spriteFrame->setPolygonInfo(info);
            }
            if (frameDict.find("anchor") != frameDict.end())
            {
                spriteFrame->setAnchorPoint(PointFromString(optValue(frameDict, "anchor"sv).asString()));
            }
        }

        auto flag = NinePatchImageParser::isNinePatchImage(spriteFrameName);
        if (flag)
        {
            if (image == nullptr)
            {
                image = new Image();
                image->initWithImageFile(textureFileName);
            }
            parser.setSpriteFrameInfo(image, spriteFrame->getRectInPixels(), spriteFrame->isRotated());
            // texture->addSpriteFrameCapInset(spriteFrame, parser.parseCapInset());
            cache.addSpriteFrameCapInset(spriteFrame, parser.parseCapInset(), texture);
        }

        // add sprite frame
        cache.insertFrame(spriteSheet, spriteFrameName, spriteFrame);
        for (auto&& frameAlias : frameAliases)
        {
            cache.insertFrame(spriteSheet, frameAlias, spriteFrame);
        }
    }

    spriteSheet->full = true;

    AX_SAFE_DELETE(image);
}

void PlistSpriteSheetLoader::addSpriteFramesWithDictionary(ValueMap& dict,
                                                           std::string_view texturePath,
                                                           std::string_view plist,
                                                           SpriteFrameCache& cache)
{
    std::string pixelFormatName;
    if (dict.find("metadata") != dict.end())
    {
        auto& metadataDict = dict.at("metadata").asValueMap();
        if (metadataDict.find("pixelFormat") != metadataDict.end())
        {
            pixelFormatName = metadataDict.at("pixelFormat").asString();
        }
    }

    Texture2D* texture                                                        = nullptr;
    static std::unordered_map<std::string, backend::PixelFormat> pixelFormats = {
        {"RGBA8888", backend::PixelFormat::RGBA8},
        {"RGBA4444", backend::PixelFormat::RGBA4},
        {"RGB5A1", backend::PixelFormat::RGB5A1},
        {"RGBA5551", backend::PixelFormat::RGB5A1},
        {"RGB565", backend::PixelFormat::RGB565},
        {"R8", backend::PixelFormat::R8},
        {"RG8", backend::PixelFormat::RG8},
        //{"BGRA8888", backend::PixelFormat::BGRA8888}, no Image conversion RGBA -> BGRA
        {"RGB888", backend::PixelFormat::RGB8}};

    const auto pixelFormatIt = pixelFormats.find(pixelFormatName);
    if (pixelFormatIt != pixelFormats.end())
    {
        const backend::PixelFormat pixelFormat        = (*pixelFormatIt).second;
        texture = Director::getInstance()->getTextureCache()->addImage(texturePath, pixelFormat);
    }
    else
    {
        texture = Director::getInstance()->getTextureCache()->addImage(texturePath);
    }

    if (texture)
    {
        addSpriteFramesWithDictionary(dict, texture, plist, cache);
    }
    else
    {
        AXLOGD("SpriteFrameCache: Couldn't load texture");
    }
}

void PlistSpriteSheetLoader::reloadSpriteFramesWithDictionary(ValueMap& dict,
                                                              Texture2D* texture,
                                                              std::string_view plist,
                                                              SpriteFrameCache& cache)
{
    auto& framesDict = dict["frames"].asValueMap();
    int format       = 0;

    // get the format
    if (dict.find("metadata") != dict.end())
    {
        auto& metadataDict = dict["metadata"].asValueMap();
        format             = metadataDict["format"].asInt();
    }

    // check the format
    AXASSERT(format >= 0 && format <= 3,
             "format is not supported for SpriteFrameCache addSpriteFramesWithDictionary:textureFilename:");

    auto spriteSheet    = std::make_shared<SpriteSheet>();
    spriteSheet->format = getFormat();
    spriteSheet->path   = plist;

    for (auto&& iter : framesDict)
    {
        const ValueMap& frameDict        = iter.second.asValueMap();
        std::string_view spriteFrameName = iter.first;

        cache.eraseFrame(spriteFrameName);

        SpriteFrame* spriteFrame = nullptr;
        std::vector<std::string> frameAliases;

        if (format == 0)
        {
            const auto x  = optValue(frameDict, "x"sv).asFloat();
            const auto y  = optValue(frameDict, "y"sv).asFloat();
            const auto w  = optValue(frameDict, "width"sv).asFloat();
            const auto h  = optValue(frameDict, "height"sv).asFloat();
            const auto ox = optValue(frameDict, "offsetX"sv).asFloat();
            const auto oy = optValue(frameDict, "offsetY"sv).asFloat();
            auto ow       = optValue(frameDict, "originalWidth"sv).asInt();
            auto oh       = optValue(frameDict, "originalHeight"sv).asInt();
            // check ow/oh
            if (!ow || !oh)
            {
                AXLOGW(
                    "WARNING: originalWidth/Height not found on the SpriteFrame. AnchorPoint won't work as "
                    "expected. Regenerate the .plist");
            }
            // abs ow/oh
            ow = std::abs(ow);
            oh = std::abs(oh);
            // create frame
            spriteFrame = SpriteFrame::createWithTexture(texture, Rect(x, y, w, h), false, Vec2(ox, oy),
                                                         Vec2((float)ow, (float)oh));
        }
        else if (format == 1 || format == 2)
        {
            auto frame   = RectFromString(optValue(frameDict, "frame"sv).asString());
            auto rotated = false;

            // rotation
            if (format == 2)
            {
                rotated = optValue(frameDict, "rotated"sv).asBool();
            }

            auto offset     = PointFromString(optValue(frameDict, "offset"sv).asString());
            auto sourceSize = SizeFromString(optValue(frameDict, "sourceSize"sv).asString());

            // create frame
            spriteFrame = SpriteFrame::createWithTexture(texture, frame, rotated, offset, sourceSize);
        }
        else if (format == 3)
        {
            // get values
            const auto spriteSize     = SizeFromString(optValue(frameDict, "spriteSize"sv).asString());
            auto spriteOffset         = PointFromString(optValue(frameDict, "spriteOffset"sv).asString());
            auto spriteSourceSize     = SizeFromString(optValue(frameDict, "spriteSourceSize"sv).asString());
            const auto textureRect    = RectFromString(optValue(frameDict, "textureRect"sv).asString());
            const auto textureRotated = optValue(frameDict, "textureRotated"sv).asBool();

            // get aliases
            const ValueVector& aliases = optValue(frameDict, "aliases"sv).asValueVector();

            for (const auto& value : aliases)
            {
                auto oneAlias = value.asString();
                if (std::find(frameAliases.begin(), frameAliases.end(), oneAlias) == frameAliases.end())
                {
                    frameAliases.emplace_back(std::move(oneAlias));
                }
                else
                {
                    AXLOGW("WARNING: an alias with name {} already exists", oneAlias);
                }
            }

            // create frame
            spriteFrame = SpriteFrame::createWithTexture(
                texture, Rect(textureRect.origin.x, textureRect.origin.y, spriteSize.width, spriteSize.height),
                textureRotated, spriteOffset, spriteSourceSize);
        }

        // add sprite frame
        cache.insertFrame(spriteSheet, spriteFrameName, spriteFrame);
        for (auto&& frameAlias : frameAliases)
        {
            cache.insertFrame(spriteSheet, frameAlias, spriteFrame);
        }
    }
}

}