package("volk")
    set_homepage("https://github.com/zeux/volk")
    set_description("volk is a meta-loader for Vulkan")
    set_license("MIT")

    add_urls("https://github.com/zeux/volk/archive/$(version).tar.gz", {version = function (version)
        local prefix = ""
        if version:gt("1.3.261+1") then
            prefix = "vulkan-sdk-"
        elseif version:ge("1.3.226") then
            prefix = "sdk-"
        end
        return prefix .. version:gsub("%+", ".")
    end})
    add_urls("https://github.com/zeux/volk.git")
    add_versions("1.2.190", "07f03720b8c70a626c98cc9545350538122bca9f853e6ed20ccad5a25d55fa4b")
    add_versions("1.2.162", "ac4d9d6e88dee5a83ad176e2da57f1989ca2c6df155a0aeb5e18e9471aa4d777")
    add_versions("1.3.204", "7776e7f3c70f199579da33d2ccd7152ca8b96182fa98c31fbe80880cef0fdf70")
    add_versions("1.3.231+1", "fac8d3d295e88bcc6bfb2b729d2c4babb2ea04ccb39fd918a3471b2d756789b9")
    add_versions("1.3.250+1", "673241c6561fb4965f873d7fcdece17d950b24c77d6cf41466e47bdc2af67b81")
    add_versions("1.3.261+1", "052866c6cbff9efdf1e73e71c1d65070c36863730c95a4e93833500b4d894d69")
    add_versions("1.3.268+0", "f1d30fac1cdc17a8fdc8c69f371663547f92db99cfd612962190bb1e2c8ce74d")

    add_deps("vulkan-headers")

    add_configs("header_only", {description = "Header only.", default = false, type = "boolean"})
    add_configs("shared", {description = "Build shared library.", default = false, type = "boolean", readonly = true})

    if is_plat("linux") then
        add_syslinks("dl")
    end

    on_install("windows", "linux", "macosx", "mingw", "iphoneos", "android", function (package)
        if not package:config("header_only") then
            io.writefile("xmake.lua", [[
                add_rules("mode.debug", "mode.release")
                add_requires("vulkan-headers")
                target("volk")
                    set_kind("static")
                    add_files("volk.c")
                    add_headerfiles("volk.h")
                    add_packages("vulkan-headers")
                    if is_plat("linux") then
                        add_syslinks("dl")
                    end
            ]])
        else
            io.writefile("xmake.lua", [[
                add_requires("vulkan-headers")
                target("volk")
                    set_kind("headeronly")
                    add_headerfiles("volk.h")
                    add_packages("vulkan-headers")
                    if is_plat("linux") then
                        add_syslinks("dl")
                    end
            ]])

            os.cp("volk.c", package:installdir("include"))
        end
        
        import("package.tools.xmake").install(package)
    end)

    on_test(function (package)
        local defines
        if package:config("header_only") then 
            defines = "VOLK_IMPLEMENTATION"
        end

        assert(package:check_csnippets({test = [[
            #include <volk.h>
            void test() {
                volkInitialize();
            }
        ]]}, {configs = {defines = defines}}))
    end)