rakefile

require "./environment.rb"
require "./properties.rb"
require 'find'

def dds_files
    FileList['textures/*.png'].map do |file_name|
        file_name.gsub(/\.png$/, '.dds')
    end
end

def compression_methods
    {
        '_albedo' => 'bc1',
        '_albedo_opacity' => 'bc3',
        '_metal_gloss_ao' => 'bc1',
        '_normal' => 'bc5'
    }
end

def compression_method_by_file_ending(file_name)
    compression_methods.each do |file_ending, compression_method|
        if file_name.end_with?("#{file_ending}.png") then
            return compression_method
        end
    end
    null
end

def mod_name
    author_prefix + '_' + technical_name + '_' + version_postfix.to_s()
end

def version_postfix
    properties[:major_version]
end

def author_prefix
    properties[:author_prefix]
end

def technical_name
    properties[:technical_name]
end

def transport_fever_mod_path
    environment[:transport_fever_path] + '/mods'
end

def staging_area
    environment[:staging_area]
end

def staging_area_path
    staging_area + '/' + mod_name
end

task push: [] do
    puts 'pushing mod to staging area'
    sh "cp -R ./mod/. #{staging_area_path}/"
end

task :clean_staging_area do
    puts 'cleal staging area'
    sh "rm -rf #{staging_area_path}/"
end

task :remove_tests do
    puts 'removing test files'
    sh "rm #{staging_area_path}/res/scripts/*_spec.lua"
    sh "rm #{staging_area_path}/res/scripts/motras_testutils.lua"
end

task :remove_debug do
    puts 'removing debug stuff'
    sh "rm #{staging_area_path}/res/scripts/inspect.lua"
    sh "rm #{staging_area_path}/res/scripts/env.lua"
    sh "rm -rf #{staging_area_path}/res/models/model/vehicle"
end

task cleanpush: [:clean_staging_area, :push]

task release: [:cleanpush, :remove_debug, :remove_tests]

task pull: [] do
    puts 'pulling mod from staging area'
    sh "cp -R #{staging_area_path}/. ./mod"
end

task dds: [:textures] do
    sh "cp ./textures/*.dds ./mod/res/textures"
end

file "textures" => dds_files

rule '.dds' => ['.png'] do |t|
    compression = compression_method_by_file_ending(t.source)
    if !compression then
        puts 'Unknown file ending'
        return null
    end
    sh "magick #{t.source} -flip -size #{properties[:texture_resolution]} temp.png"
	sh "nvcompress -color -#{compression} temp.png #{t.name}"
	sh "rm temp.png"
end