--!A cross-platform build utility based on Lua
--
-- Licensed under the Apache License, Version 2.0 (the "License");
-- you may not use this file except in compliance with the License.
-- You may obtain a copy of the License at
--
--     http://www.apache.org/licenses/LICENSE-2.0
--
-- Unless required by applicable law or agreed to in writing, software
-- distributed under the License is distributed on an "AS IS" BASIS,
-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-- See the License for the specific language governing permissions and
-- limitations under the License.
-- 
-- Copyright (C) 2015-2020, TBOOX Open Source Group.
--
-- @author      ruki
-- @file        android.lua
--

-- imports
import("core.theme.theme")
import("core.base.option")
import("core.project.config")

-- deploy application package for android
function main(target, opt)

    -- get target apk path
    local target_apk = path.join(path.directory(target:targetfile()), target:basename() .. ".apk")

    -- trace progress info
    cprintf("${color.build.progress}" .. theme.get("text.build.progress_format") .. ":${clear} ", opt.progress.stop)
    if option.get("verbose") then
        cprint("${dim color.build.target}generating.qt.app %s.apk", target:basename())
    else
        cprint("${color.build.target}generating.qt.app %s.apk", target:basename())
    end

    -- get qt sdk
    local qt = target:data("qt")

    -- get ndk
    local ndk = path.translate(assert(config.get("ndk"), "cannot get NDK!"))
    local ndk_sdkver = assert(config.get("ndk_sdkver"), "cannot get the sdk version of NDK!")

    -- get ndk host
    local ndk_host = os.host() .. "-" .. os.arch()
    if is_host("windows") then
        ndk_host = os.arch() == "x64" and "windows-x86_64" or "windows-x86"
    elseif is_host("macosx") then
        ndk_host = "darwin-x86_64"
    elseif is_host("linux") then
        ndk_host = "linux-x86_64"
    end

    -- get androiddeployqt
    local androiddeployqt = path.join(qt.bindir, "androiddeployqt" .. (is_host("windows") and ".exe" or ""))
    assert(os.isexec(androiddeployqt), "androiddeployqt not found!")

    -- get working directory
    local workdir = path.join(config.buildir(), ".qt", "app", "android", target:name())

    -- get android-build directory
    local android_buildir = path.join(workdir, "android-build")

    -- get android platform
    local android_platform = "android-" .. tostring(ndk_sdkver)

    -- get java home
    local java_home = assert(os.getenv("JAVA_HOME"), "please set $JAVA_HOME environment variable first!")

    -- get android sdk directory
    local android_sdkdir = path.translate(assert(config.get("android_sdk"), "please run `xmake f --android_sdk=xxx` to set the android sdk directory!"))

    -- get android build-tools version
    local android_build_toolver = assert(config.get("build_toolver"), "please run `xmake f --build_toolver=xxx` to set the android build-tools version!")

    -- get the target architecture
    local target_archs = 
    {
        ["armv5te"]     = "armeabi"       -- deprecated
    ,   ["armv7-a"]     = "armeabi-v7a"   -- deprecated
    ,   ["armeabi"]     = "armeabi"
    ,   ["armeabi-v7a"] = "armeabi-v7a"
    ,   ["arm64-v8a"]   = "arm64-v8a"
    ,   i386            = "x86"
    ,   x86_64          = "x86_64"
    ,   mips            = "mips"          -- removed in ndk r71
    ,   mips64          = "mips64"        -- removed in ndk r71
    }
    local target_arch = assert(target_archs[config.arch()], "unsupport target arch(%s)!", config.arch())

    -- install target to android-build/libs first
    os.cp(target:targetfile(), path.join(android_buildir, "libs", target_arch, path.filename(target:targetfile())))

    -- get stdcpp path
    local stdcpp_path = path.join(ndk, "sources/cxx-stl/llvm-libc++/libs", target_arch, "libc++_shared.so")

    -- get toolchain version
    local ndk_toolchains_ver = config.get("ndk_toolchains_ver") or "4.9"

    -- generate android-deployment-settings.json file
    local android_deployment_settings = path.join(workdir, "android-deployment-settings.json")
    io.writefile(android_deployment_settings, format([[
    {
       "description": "This file is generated by qmake to be read by androiddeployqt and should not be modified by hand.",
       "qt": "%s",
       "sdk": "%s",
       "ndk": "%s",
       "sdkBuildToolsRevision": "%s",
       "toolchain-prefix": "llvm",
       "tool-prefix": "llvm",
       "toolchain-version": "%s",
       "ndk-host": "%s",
       "target-architecture": "%s",
       "qml-root-path": "%s",
       "stdcpp-path": "%s",
       "useLLVM": true,
       "application-binary": "%s"
    }]], qt.sdkdir, android_sdkdir, ndk, android_build_toolver, ndk_toolchains_ver, ndk_host, target_arch, os.projectdir(), stdcpp_path, target:targetfile()))

    -- do deploy
    local argv = {"--input", android_deployment_settings,
                  "--output", android_buildir,
                  "--android-platform", android_platform,
                  "--jdk", java_home,
                  "--gradle", "--no-gdbserver"}
    os.vrunv(androiddeployqt, argv)

    -- output apk
    os.cp(path.join(android_buildir, "build", "outputs", "apk", "debug", "android-build-debug.apk"), target_apk)

    -- show apk output path
    vprint("the apk output path: %s", target_apk)
end