require 'rake/clean'
require "bundler/gem_tasks"
require "rake/testtask"
require_relative "extsources"

SOURCES_DIR = "ext/sources"

SOURCES = FileList[]

EXTSOURCES.each do |src|
  basename = src.pathmap("%f")
  dest = basename == "LICENSE" ? basename
                               : src.pathmap("%{\\.\\./\\.\\.,#{SOURCES_DIR}}p")
                                    .pathmap("%{\\.\\./javascript,#{SOURCES_DIR}/bindings/javascript}p")
  dir = dest.pathmap("%d")
  file src
  directory dir
  file dest => [src, dir] do |t|
    cp t.source, t.name
  end
  SOURCES.include dest
end

CLEAN.include SOURCES

SRC = FileList["ext/*.{c,cpp,h}"]

task build: SOURCES

directory "pkg"
CLOBBER.include "pkg"

LIB_NAME = "whisper".ext(RbConfig::CONFIG["DLEXT"])
SO_FILE = File.join("ext", LIB_NAME)
LIB_FILE = File.join("lib", LIB_NAME)

file "ext/Makefile" => SRC + ["ext/extconf.rb"] + SOURCES do |t|
  chdir "ext" do
    ruby "extconf.rb"
  end
end
if File.exist? "ext/Makefile"
  task :make_clean do
    cd "ext" do
      sh "make", "clean"
    end
  end
  task clean: :make_clean
  task :make_distclean do
    cd "ext" do
      sh "make", "distclean"
    end
  end
  task clobber: :make_distclean
end

file SO_FILE => "ext/Makefile" do |t|
  chdir "ext" do
    sh "make"
  end
end
CLEAN.include SO_FILE

directory "lib"
file LIB_FILE => [SO_FILE, "lib"] do |t|
  copy t.source, t.name
end
CLEAN.include LIB_FILE

Rake::TestTask.new

TEST_FIXTURE_AUDIO = "test/fixtures/jfk.wav"
TEST_FIXTURE_AUDIO_SRC = File.expand_path(File.join(__dir__, "..", "..", "samples", "jfk.wav"))
TEST_FIXTURE_AUDIO_DIR = TEST_FIXTURE_AUDIO.pathmap("%d")
directory TEST_FIXTURE_AUDIO_DIR
if File.exist? TEST_FIXTURE_AUDIO_SRC
  file TEST_FIXTURE_AUDIO => [TEST_FIXTURE_AUDIO_SRC, TEST_FIXTURE_AUDIO_DIR] do |t|
    symlink t.source, t.name
  end
else
  require "open-uri"
  file TEST_FIXTURE_AUDIO => TEST_FIXTURE_AUDIO_DIR do |t|
    File.write t.name, URI("https://github.com/ggml-org/whisper.cpp/raw/refs/heads/master/samples/jfk.wav").read
  end
end

TEST_MEMORY_VIEW = "test/jfk_reader/jfk_reader.#{RbConfig::CONFIG['DLEXT']}"
file TEST_MEMORY_VIEW => "test/jfk_reader/jfk_reader.c" do |t|
  chdir "test/jfk_reader" do
    ruby "extconf.rb"
    sh "make"
  end
end
CLEAN.include TEST_MEMORY_VIEW

task test: [LIB_FILE, TEST_MEMORY_VIEW, TEST_FIXTURE_AUDIO]