-- Licensed to the Apache Software Foundation (ASF) under one
-- or more contributor license agreements. See the NOTICE file
-- distributed with this work for additional information
-- regarding copyright ownership. The ASF licenses this file
-- to you 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.


require('TSocket')
require('TBufferedTransport')
require('TFramedTransport')
require('THttpTransport')
require('TCompactProtocol')
require('TJsonProtocol')
require('TBinaryProtocol')
require('ThriftTest_ThriftTest')
require('liblualongnumber')

local client

function teardown()
  if client then
    -- close the connection
    client:close()
  end
end

function parseArgs(rawArgs)
  local opt = {
    protocol='binary',
    transport='buffered',
    port='9090',
  }
  for i, str in pairs(rawArgs) do
    if i > 0 then
      k, v = string.match(str, '--(%w+)=(%w+)')
      assert(opt[k] ~= nil, 'Unknown argument')
      opt[k] = v
    end
  end
  return opt
end

function assertEqual(val1, val2, msg)
  assert(val1 == val2, msg)
end

function testBasicClient(rawArgs)
  local opt = parseArgs(rawArgs)
  local socket = TSocket:new{
    port = tonumber(opt.port)
  }
  assert(socket, 'Failed to create client socket')
  socket:setTimeout(5000)

  local transports = {
    buffered = TBufferedTransport,
    framed = TFramedTransport,
    http = THttpTransport,
  }
  assert(transports[opt.transport] ~= nil)
  local transport = transports[opt.transport]:new{
    trans = socket,
    isServer = false
  }

  local protocols = {
    binary = TBinaryProtocol,
    compact = TCompactProtocol,
    json = TJSONProtocol,
  }
  assert(protocols[opt.protocol] ~= nil)
  local protocol = protocols[opt.protocol]:new{
    trans = transport
  }
  assert(protocol, 'Failed to create binary protocol')

  client = ThriftTestClient:new{
    protocol = protocol
  }
  assert(client, 'Failed to create client')

  -- Open the transport
  local status, _ = pcall(transport.open, transport)
  assert(status, 'Failed to connect to server')

  -- String
  assertEqual(client:testString('lala'),  'lala',  'Failed testString')
  assertEqual(client:testString('wahoo'), 'wahoo', 'Failed testString')

  -- Bool
  assertEqual(client:testBool(true), true, 'Failed testBool true')
  assertEqual(client:testBool(false), false, 'Failed testBool false')

  -- Byte
  assertEqual(client:testByte(0x01), 1,    'Failed testByte 1')
  assertEqual(client:testByte(0x40), 64,   'Failed testByte 2')
  assertEqual(client:testByte(0x7f), 127,  'Failed testByte 3')
  assertEqual(client:testByte(0x80), -128, 'Failed testByte 4')
  assertEqual(client:testByte(0xbf), -65,  'Failed testByte 5')
  assertEqual(client:testByte(0xff), -1,   'Failed testByte 6')
  assertEqual(client:testByte(128), -128,  'Failed testByte 7')
  assertEqual(client:testByte(255), -1,    'Failed testByte 8')

  -- I32
  assertEqual(client:testI32(0x00000001), 1,           'Failed testI32 1')
  assertEqual(client:testI32(0x40000000), 1073741824,  'Failed testI32 2')
  assertEqual(client:testI32(0x7fffffff), 2147483647,  'Failed testI32 3')
  assertEqual(client:testI32(0x80000000), -2147483648, 'Failed testI32 4')
  assertEqual(client:testI32(0xbfffffff), -1073741825, 'Failed testI32 5')
  assertEqual(client:testI32(0xffffffff), -1,          'Failed testI32 6')
  assertEqual(client:testI32(2147483648), -2147483648, 'Failed testI32 7')
  assertEqual(client:testI32(4294967295), -1,          'Failed testI32 8')

  -- I64 (lua only supports 16 decimal precision so larger numbers are
  -- initialized by their string value)
  local long = liblualongnumber.new
  assertEqual(client:testI64(long(0x0000000000000001)),
                   long(1),
                   'Failed testI64 1')
  assertEqual(client:testI64(long(0x4000000000000000)),
                   long(4611686018427387904),
                   'Failed testI64 2')
  assertEqual(client:testI64(long('0x7fffffffffffffff')),
                   long('9223372036854775807'),
                   'Failed testI64 3')
  assertEqual(client:testI64(long(0x8000000000000000)),
                   long(-9223372036854775808),
                   'Failed testI64 4')
  assertEqual(client:testI64(long('0xbfffffffffffffff')),
                   long('-4611686018427387905'),
                   'Failed testI64 5')
  assertEqual(client:testI64(long('0xffffffffffffffff')),
                   long(-1),
                   'Failed testI64 6')

  -- Double
  assertEqual(
      client:testDouble(1.23456789), 1.23456789, 'Failed testDouble 1')
  assertEqual(
      client:testDouble(0.123456789), 0.123456789, 'Failed testDouble 2')
  assertEqual(
      client:testDouble(0.123456789), 0.123456789, 'Failed testDouble 3')

  -- TODO testBinary() ...
	  
  -- Accuracy of 16 decimal digits (rounds)
  local a, b = 1.12345678906666663, 1.12345678906666661
  assertEqual(a, b)
  assertEqual(client:testDouble(a), b, 'Failed testDouble 5')

  -- Struct
  local o = Xtruct:new{
    string_thing = 'Zero',
    byte_thing = 1,
    i32_thing = -3,
    i64_thing = long(-5)
  }
  local r = client:testStruct(o)
  assertEqual(o.string_thing, r.string_thing, 'Failed testStruct 1')
  assertEqual(o.byte_thing, r.byte_thing, 'Failed testStruct 2')
  assertEqual(o.i32_thing, r.i32_thing, 'Failed testStruct 3')
  assertEqual(o.i64_thing, r.i64_thing, 'Failed testStruct 4')

  -- TODO add list map set exception etc etc
end

testBasicClient(arg)
teardown()