package("qtbase")
    set_kind("template")
    set_homepage("https://www.qt.io")
    set_description("Qt is the faster, smarter way to create innovative devices, modern UIs & applications for multiple screens. Cross-platform software development at its best.")
    set_license("LGPL-3")

    add_configs("shared", {description = "Download shared binaries.", default = true, type = "boolean", readonly = true})
    add_configs("vs_runtime", {description = "Set vs compiler runtime.", default = "MD", readonly = true})

    add_deps("aqt")

    on_load(function (package)
        package:addenv("PATH", "bin")
    end)

    on_fetch(function (package, opt)
        import("core.base.semver")
        import("detect.sdks.find_qt")

        local qt = package:data("qt")
        if qt then
            return qt
        end

        local sdkdir
        if not opt.system then
            sdkdir = package:installdir()
        end

        local qt = find_qt(sdkdir, {force = opt.force})
        if not qt then
            return
        end

        local qtversion = semver.new(qt.sdkver)
        if not qtversion:ge(package:version()) then
            return
        end
        qt.version = qt.sdkver
        package:data_set("qt", qt)
        return qt
    end)

    on_install(function (package)
        import("core.base.semver")
        import("core.project.config")
        import("core.tool.toolchain")

        local version = package:version()
        local versionstr = version:shortstr()

        local host
        if is_host("windows") or package:is_plat("mingw") then
            host = "windows"
        elseif is_host("linux") then
            host = "linux"
        elseif is_host("macosx") then
            host = "mac"
        else
            raise("unhandled host " .. os.host())
        end

        local target
        if package:is_plat("windows", "mingw", "linux", "macosx") then
            target = "desktop"
        elseif package:is_plat("android") then
            target = "android"
        elseif package:is_plat("iphoneos") then
            target = "ios"
        else
            raise("unhandled plat " .. package:plat())
        end

        local arch
        if package:is_plat("windows", "mingw") then
            local winarch
            if package:is_arch("x64", "x86_64", "arm64") then
                winarch = "64"
            elseif version:lt("6.0") and package:is_arch("x86", "i386") then -- 32bits support was removed in Qt6
                winarch = "32"
            else
                raise("unhandled arch " .. package:targetarch())
            end

            local compiler_version
            if package:is_plat("windows") then
                local vs = toolchain.load("msvc"):config("vs")
                if tonumber(vs) >= 2019 or version:ge("6.0") then
                    compiler_version = "msvc2019"
                elseif vs == "2017" or vs == "2015" then
                    compiler_version = "msvc" .. vs
                else
                    raise("unhandled msvc version " .. vs)
                end

                if package:is_arch("x64", "x86_64") then
                    compiler_version = compiler_version .. "_64"
                elseif package:is_arch("arm64") then -- arm64 support was added in Qt6.2
                    compiler_version = compiler_version .. "_arm64"
                end
            else
                local cc = package:tool("cc")
                local ccversion = os.iorunv(cc, {"-dumpversion"}):trim()
                local mingw_version = semver.new(ccversion)
                if version:ge("6.2.2") then
                    compiler_version = "mingw"
                elseif mingw_version:ge("8.1") then
                    compiler_version = "mingw81"
                elseif mingw_version:ge("7.3") then
                    compiler_version = "mingw73"
                elseif mingw_version:ge("5.3") then
                    compiler_version = "mingw53"
                else
                    raise("unhandled mingw version " .. version)
                end
            end
            arch = "win" .. winarch .. "_" .. compiler_version
        elseif package:is_plat("linux") then
            arch = "gcc_64"
        elseif package:is_plat("macosx") then
            arch = "clang_64"
        elseif package:is_plat("android") then
            if version:le("5.13") or version:ge("6.0") then
                if package:is_arch("x86_64", "x64") then
                    arch = "android_x86_64"
                elseif package:is_arch("arm64", "arm64-v8a") then
                    arch = "android_arm64_v8a"
                elseif package:is_arch("armv7", "armv7-a", "armeabi", "armeabi-v7a") then
                    arch = "android_armv7"
                elseif package:is_arch("x86") then
                    arch = "android_x86"
                else
                    raise("unhandled arch " .. package:targetarch())
                end
            else
                arch = "android"
            end
        end

        local installdir = package:installdir()
        os.vrunv("aqt", {"install-qt", "-O", installdir, host, target, versionstr, arch})

        -- move files to root
        os.mv(path.join(installdir, versionstr, "*", "*"), installdir)
        os.rmdir(path.join(installdir, versionstr))

        -- special case for cross-compilation since we need binaries we can run on the host
        if package:is_cross() then
            local runhost
            if is_host("windows") then
                runhost = "windows"
            elseif is_host("linux") then
                runhost = "linux"
            elseif is_host("macosx") then
                runhost = "mac"
            else
                raise("unhandled host " .. os.host())
            end

            local hostarch
            if is_host("windows") then
                local winarch
                if os.arch():find("64", 1, true) then
                    winarch = "64"
                else
                    winarch = "32"
                end

                local compiler_version
                local vs = toolchain.load("msvc"):config("vs")
                if tonumber(vs) >= 2019 or version:ge("6.0") then
                    compiler_version = "msvc2019"
                elseif vs == "2017" or vs == "2015" then
                    compiler_version = "msvc" .. vs
                else
                    raise("unhandled msvc version " .. vs)
                end

                if os.arch() == "x64" then
                    compiler_version = compiler_version .. "_64"
                elseif os.arch() == "arm64" then
                    compiler_version = compiler_version .. "_arm64"
                end
                hostarch = "win" .. winarch .. "_" .. compiler_version
            elseif is_host("linux") then
                hostarch = "gcc_64"
            elseif is_host("macosx") then
                hostarch = "clang_64"
            end

            -- download qtbase to bin_host folder
            os.vrunv("aqt", {"install-qt", "-O", path.join(installdir, "bin_host"),
                runhost, "desktop", versionstr, hostarch})

            -- add symbolic links for useful tools
            local tool_folders = {}
            if version:ge("6.0") then
                tool_folders.bin = {
                    qmake = true,
                    qmake6 = true
                }

                tool_folders.libexec = {
                    moc = true,
                    rcc = true,
                    uic = true
                }
            else
                tool_folders.bin = {
                    qmake = true,
                    moc = true,
                    rcc = true,
                    uic = true
                }
            end

            for folder, tools in pairs(tool_folders) do
                for _, file in ipairs(os.files(path.join(installdir, "bin_host", versionstr, "*", folder, "*"))) do
                    local filename = path.filename(file)
                    if tools[filename] then
                        local targetpath = path.join(installdir, folder, filename)
                        os.rm(targetpath)
                        if is_host("windows") then
                            os.cp(file, targetpath)
                        else
                            os.ln(file, targetpath)
                        end

                        -- some tools like CMake will try to run moc.exe even on Linux, trick them (ln bin/moc.exe => bin_host/bin/moc)
                        if package:is_plat("mingw") then
                            os.rm(targetpath .. ".exe")
                            if is_host("windows") then
                                os.cp(file, targetpath .. ".exe")
                            else
                                os.ln(file, targetpath .. ".exe")
                            end
                        end
                    end
                end
            end
        end
    end)

    on_test(function (package)
        local qt = assert(package:data("qt"))

        local function getbin(name)
            if is_host("windows") then
                name = name .. ".exe"
            end
            local exec = path.join(qt.bindir, name)
            if not os.isexec(exec) and qt.libexecdir then
                exec = path.join(qt.libexecdir, name)
            end
            if not os.isexec(exec) and qt.libexecdir_host then
                exec = path.join(qt.libexecdir_host, name)
            end
            assert(os.isexec(exec), name .. " not found!")
            return exec
        end

        os.vrun(getbin("qmake") .. " -v")
        os.vrun(getbin("moc") .. " -v")
        -- rcc -v and uic -v seems to hang CI forever
        --os.vrun(getbin("rcc") .. " -v") -- rcc -v hangs CI 
        --os.vrun(getbin("uic") .. " -v") -- uic -v seems to hang on CI
    end)