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#include "mcutargetfactory.h"
#include "mcuhelpers.h"
#include "mcupackage.h"
#include "mcusupportconstants.h"
#include "mcutarget.h"
#include "mcutargetdescription.h"

#include <utils/algorithm.h>
#include <utils/qtcassert.h>

#include <QVersionNumber>

namespace McuSupport::Internal::Sdk {

bool isToolchainDescriptionValid(const McuTargetDescription::Toolchain &t)
{
    bool result{true};
    if (t.packages.isEmpty() || t.id.isEmpty())
        result = false;
    return result;
}

bool isDesktopToolchain(McuToolChainPackage::ToolChainType type)
{
    return type == McuToolChainPackage::ToolChainType::MSVC
           || type == McuToolChainPackage::ToolChainType::GCC;
}

const static QMap<QString, McuToolChainPackage::ToolChainType> toolchainTypeMapping{
    {"iar", McuToolChainPackage::ToolChainType::IAR},
    {"keil", McuToolChainPackage::ToolChainType::KEIL},
    {"msvc", McuToolChainPackage::ToolChainType::MSVC},
    {"gcc", McuToolChainPackage::ToolChainType::GCC},
    {"armgcc", McuToolChainPackage::ToolChainType::ArmGcc},
    {"ghs", McuToolChainPackage::ToolChainType::GHS},
    {"ghsarm", McuToolChainPackage::ToolChainType::GHSArm},
};

McuTargetFactory::McuTargetFactory(const SettingsHandler::Ptr &settingsHandler)
    : settingsHandler{settingsHandler}
{}

QPair<Targets, Packages> McuTargetFactory::createTargets(const McuTargetDescription &desc)
{
    Targets mcuTargets;
    Packages packages;

    for (int colorDepth : desc.platform.colorDepths) {
        const McuTarget::Platform platform(
            {desc.platform.id, desc.platform.name, desc.platform.vendor});

        auto *toolchain = createToolchain(desc.toolchain);
        if (toolchain == nullptr)
            continue;
        Packages targetPackages = createPackages(desc);
        packages.unite(targetPackages);
        mcuTargets.append(McuTargetPtr{new McuTarget{QVersionNumber::fromString(desc.qulVersion),
                                                     platform,
                                                     deduceOperatingSystem(desc),
                                                     targetPackages,
                                                     McuToolChainPackagePtr{toolchain},
                                                     colorDepth}});
    }
    return {mcuTargets, packages};
}

QList<PackageDescription> aggregatePackageEntries(const McuTargetDescription &desc)
{
    QList<PackageDescription> result;
    result.append(desc.boardSdk.packages);
    result.append(desc.freeRTOS.packages);
    result.append(desc.toolchain.packages);
    return result;
}

Packages McuTargetFactory::createPackages(const McuTargetDescription &desc)
{
    Packages packages;
    QList<PackageDescription> packageDescriptions = aggregatePackageEntries(desc);

    for (const PackageDescription &pkgDesc : packageDescriptions) {
        packages.insert(createPackage(pkgDesc));
    }

    return packages;
}

McuPackagePtr McuTargetFactory::createPackage(const PackageDescription &pkgDesc)
{
    return McuPackagePtr{new McuPackage{
        settingsHandler,
        pkgDesc.label,
        pkgDesc.defaultPath,
        pkgDesc.validationPath,
        pkgDesc.setting,
        pkgDesc.cmakeVar,
        pkgDesc.envVar,
    }};
}

McuToolChainPackage *McuTargetFactory::createToolchain(
    const McuTargetDescription::Toolchain &toolchain)
{
    const PackageDescription compilerDescription
        = Utils::findOrDefault(toolchain.packages, [](const PackageDescription &desc) {
              return desc.cmakeVar == Constants::TOOLCHAIN_DIR_CMAKE_VARIABLE;
          });

    McuToolChainPackage::ToolChainType toolchainType
        = toolchainTypeMapping.value(toolchain.id, McuToolChainPackage::ToolChainType::Unsupported);

    if (isDesktopToolchain(toolchainType))
        return new McuToolChainPackage{settingsHandler, {}, {}, {}, {}, toolchainType};
    else if (!isToolchainDescriptionValid(toolchain))
        return nullptr;

    return new McuToolChainPackage{
        settingsHandler,
        compilerDescription.label,
        compilerDescription.defaultPath,
        compilerDescription.validationPath,
        compilerDescription.setting,
        toolchainType,
        compilerDescription.cmakeVar,
        compilerDescription.envVar,
        nullptr,
    };
}

} // namespace McuSupport::Internal::Sdk