require "uuid"
require "file_utils"

require "./task.cr"
require "./column.cr"

class Project
	JSON.mapping({
		id: String,
		name: String,
		columns: Array(Column),
		tasks: Array(Task),
		color: {
			type: String,
			default: "dark"
		}
	})

	def initialize(@name)
		@id = UUID.random.to_s

		@columns = [Column.new "To do"]
		@tasks = [] of Task

		@color = "dark"
	end

	def write!(storage)
		Dir.mkdir_p "#{storage}/#{@id}"

		File.write "#{storage}/#{@id}/project.json.new", to_json
		FileUtils.mv "#{storage}/#{@id}/project.json.new",
			"#{storage}/#{@id}/project.json"
	end

	# FIXME: Transform that exception somehow.
	# FIXME: Update to not read everything.
	def self.get_from_id(id, storage)
		self.all(storage).find(&.id.==(id)).not_nil!
	end

	def self.all(storage) : Array(Project)
		# FIXME: switch to an index file per project in a storage directory.
		Dir.children(storage).compact_map do |filename|
			begin
				Project.from_json File.read "#{storage}/#{filename}/project.json"
			rescue
			end
		end
	rescue
		[] of Project
	end
end