require_relative 'spec_helper'
require_relative 'support/cuba_response_env'

require 'httpimagestore/configuration'
Configuration::Scope.logger = Logger.new('/dev/null')

require 'httpimagestore/configuration/output'
require 'httpimagestore/configuration/file'
MemoryLimit.logger = Logger.new('/dev/null')

describe Configuration do
	let :state do
		Configuration::RequestState.new('abc')
	end

	let :env do
		CubaResponseEnv.new
	end

	describe Configuration::OutputImage do
		subject do
			Configuration.read(<<-EOF)
			put "test" {
				output_image "input"
			}
			EOF
		end

		before :each do
			subject.handlers[0].image_sources[0].realize(state)
		end

		it 'should provide given image' do
			subject.handlers[0].output.should be_a Configuration::OutputImage
			subject.handlers[0].output.realize(state)

			env.instance_eval &state.output_callback
			env.res.status.should == 200
			env.res.data.should == 'abc'
		end

		it 'should use default content type if not defined on image' do
			subject.handlers[0].output.realize(state)

			env.instance_eval &state.output_callback
			env.res['Content-Type'].should == 'application/octet-stream'
		end

		it 'should use image mime type if available' do
			state.images['input'].mime_type = 'image/jpeg'

			subject.handlers[0].output.realize(state)

			env.instance_eval &state.output_callback
			env.res['Content-Type'].should == 'image/jpeg'
		end

		describe 'Cache-Control header support' do
			subject do
				Configuration.read(<<-EOF)
				put "test" {
					output_image "input" cache-control="public, max-age=999, s-maxage=666"
				}
				EOF
			end

			it 'should allow setting Cache-Control header' do
				subject.handlers[0].output.realize(state)

				env.instance_eval &state.output_callback
				env.res['Cache-Control'].should == 'public, max-age=999, s-maxage=666'
			end
		end
	end

	describe 'output store paths and URLs' do
		let :in_file do
			Pathname.new("/tmp/test.in")
		end

		let :out_file do
			Pathname.new("/tmp/test.out")
		end

		let :out2_file do
			Pathname.new("/tmp/test.out2")
		end

		before :each do
			in_file.open('w'){|io| io.write('abc')}
			out_file.unlink if out_file.exist?
			out2_file.unlink if out2_file.exist?
		end

		after :each do
			out_file.unlink if out_file.exist?
			out2_file.unlink if out2_file.exist?
			in_file.unlink
		end

		describe Configuration::OutputStorePath do
			it 'should provide file store path' do
				subject = Configuration.read(<<-EOF)
				path {
					"out"	"test.out"
				}

				post "single" {
					store_file "input" root="/tmp" path="out"

					output_store_path "input"
				}
				EOF

				subject.handlers[0].image_sources[0].realize(state)
				subject.handlers[0].stores[0].realize(state)
				subject.handlers[0].output.realize(state)

				env.instance_eval &state.output_callback
				env.res['Content-Type'].should == 'text/plain'
				env.res.data.should == "test.out\r\n"
			end

			it 'should provide multiple file store paths' do
				subject = Configuration.read(<<-EOF)
				path {
					"in"	"test.in"
					"out"	"test.out"
					"out2"	"test.out2"
				}

				post "multi" {
					source_file "original" root="/tmp" path="in"

					store_file "input" root="/tmp" path="out"
					store_file "original" root="/tmp" path="out2"

					output_store_path {
						"input"
						"original"
					}
				}
				EOF

				subject.handlers[0].image_sources[0].realize(state)
				subject.handlers[0].image_sources[1].realize(state)
				subject.handlers[0].stores[0].realize(state)
				subject.handlers[0].stores[1].realize(state)
				subject.handlers[0].output.realize(state)

				env.instance_eval &state.output_callback
				env.res['Content-Type'].should == 'text/plain'
				env.res.data.should == "test.out\r\ntest.out2\r\n"
			end

			describe 'conditional inclusion support' do
				let :state do
					Configuration::RequestState.new('abc', {list: 'input,image2'})
				end

				subject do
					Configuration.read(<<-'EOF')
					path {
						"in"		"test.in"
						"out1"	"test.out1"
						"out2"	"test.out2"
						"out3"	"test.out3"
					}

					post "multi" {
						source_file "image1" root="/tmp" path="in"
						source_file "image2" root="/tmp" path="in"

						store_file "input" root="/tmp" path="out1"
						store_file "image1" root="/tmp" path="out2"
						store_file "image2" root="/tmp" path="out3"

						output_store_path {
							"input"		if-image-name-on="#{list}"
							"image1"	if-image-name-on="#{list}"
							"image2"	if-image-name-on="#{list}"
						}
					}
					EOF
				end

				it 'should output store path only for images that names match if-image-name-on list' do
					subject.handlers[0].image_sources[0].realize(state)
					subject.handlers[0].image_sources[1].realize(state)
					subject.handlers[0].image_sources[2].realize(state)
					subject.handlers[0].stores[0].realize(state)
					subject.handlers[0].stores[1].realize(state)
					subject.handlers[0].stores[2].realize(state)
					subject.handlers[0].output.realize(state)

					env.instance_eval &state.output_callback
					env.res['Content-Type'].should == 'text/plain'
					env.res.data.should == "test.out1\r\ntest.out3\r\n"
				end
			end

			describe 'error handling' do
				it 'should raise StorePathNotSetForImage for output of not stored image' do
					subject = Configuration.read(<<-EOF)
					post "single" {
						output_store_path "input"
					}
					EOF

					subject.handlers[0].image_sources[0].realize(state)

					expect {
						subject.handlers[0].output.realize(state)
					}.to raise_error Configuration::StorePathNotSetForImage, %{store path not set for image 'input'}
				end
			end
		end

		describe Configuration::OutputStoreURL do
			it 'should provide file store URL' do
				subject = Configuration.read(<<-EOF)
				path {
					"out"	"test.out"
				}

				post "single" {
					store_file "input" root="/tmp" path="out"

					output_store_url "input"
				}
				EOF

				subject.handlers[0].image_sources[0].realize(state)
				subject.handlers[0].stores[0].realize(state)
				subject.handlers[0].output.realize(state)

				env.instance_eval &state.output_callback
				env.res['Content-Type'].should == 'text/uri-list'
				env.res.data.should == "file://test.out\r\n"
			end

			it 'should provide multiple file store URLs' do
				subject = Configuration.read(<<-EOF)
				path {
					"in"	"test.in"
					"out"	"test.out"
					"out2"	"test.out2"
				}

				post "multi" {
					source_file "original" root="/tmp" path="in"

					store_file "input" root="/tmp" path="out"
					store_file "original" root="/tmp" path="out2"

					output_store_url {
						"input"
						"original"
					}
				}
				EOF

				subject.handlers[0].image_sources[0].realize(state)
				subject.handlers[0].image_sources[1].realize(state)
				subject.handlers[0].stores[0].realize(state)
				subject.handlers[0].stores[1].realize(state)
				subject.handlers[0].output.realize(state)

				env.instance_eval &state.output_callback
				env.res['Content-Type'].should == 'text/uri-list'
				env.res.data.should == "file://test.out\r\nfile://test.out2\r\n"
			end
			
			describe 'conditional inclusion support' do
				let :state do
					Configuration::RequestState.new('abc', list: 'input,image2')
				end

				subject do
					Configuration.read(<<-'EOF')
					path {
						"in"		"test.in"
						"out1"	"test.out1"
						"out2"	"test.out2"
						"out3"	"test.out3"
					}

					post "multi" {
						source_file "image1" root="/tmp" path="in"
						source_file "image2" root="/tmp" path="in"

						store_file "input" root="/tmp" path="out1"
						store_file "image1" root="/tmp" path="out2"
						store_file "image2" root="/tmp" path="out3"

						output_store_url {
							"input"		if-image-name-on="#{list}"
							"image1"	if-image-name-on="#{list}"
							"image2"	if-image-name-on="#{list}"
						}
					}
					EOF
				end

				it 'should output store url only for images that names match if-image-name-on list' do
					subject.handlers[0].image_sources[0].realize(state)
					subject.handlers[0].image_sources[1].realize(state)
					subject.handlers[0].image_sources[2].realize(state)
					subject.handlers[0].stores[0].realize(state)
					subject.handlers[0].stores[1].realize(state)
					subject.handlers[0].stores[2].realize(state)
					subject.handlers[0].output.realize(state)

					env.instance_eval &state.output_callback
					env.res['Content-Type'].should == 'text/uri-list'
					env.res.data.should == "file://test.out1\r\nfile://test.out3\r\n"
				end
			end

			describe 'error handling' do
				it 'should raise StoreURLNotSetForImage for output of not stored image' do
					subject = Configuration.read(<<-EOF)
					post "single" {
						output_store_url "input"
					}
					EOF

					subject.handlers[0].image_sources[0].realize(state)

					expect {
						subject.handlers[0].output.realize(state)
					}.to raise_error Configuration::StoreURLNotSetForImage, %{store URL not set for image 'input'}
				end
			end
		end
	end
end