local call_redis_script = require "./lua/test/harness";

describe("persist-coverage", function()
  local function hgetall(hash_key)
    local flat_map = redis.call('HGETALL', hash_key)
    local result = {}
    for i = 1, #flat_map, 2 do
      result[flat_map[i]] = flat_map[i + 1]
    end
    return result
  end

  local function clean_redis() 
    redis.call('flushdb')
  end

  before_each(function()
    clean_redis()
  end)

  after_each(function()
    clean_redis()
  end)

  it("Adds data on multiple files", function()
    local first_updated_at = "1569453853"
    local last_updated_at = first_updated_at

    local key = 'hash_key'
    local json = cjson.encode({
      ttl = nil,
      files_data = {
        {
          hash_key = "coverband_hash_3_3.coverband_test.runtime../dog.rb.abcd",
          meta = {
            first_updated_at = first_updated_at, 
            last_updated_at = last_updated_at, 
            file = "./dog.rb",
            file_hash = 'abcd', 
            file_length = 3 
          },
          coverage = {
            ['0'] = 0, 
            ['1'] = 1, 
            ['2'] = 2
          }
        },
        {
          hash_key = "coverband_hash_3_3.coverband_test.runtime../fish.rb.1234",
          meta = {
            first_updated_at = first_updated_at, 
            last_updated_at = last_updated_at, 
            file = "./fish.rb",
            file_hash = '1234', 
            file_length = 3
          },
          coverage = {
            ['0'] = 1, 
            ['1'] = 0, 
            ['2'] = 1 
          }
        }
      }
    });
    redis.call( 'set', key, json)

    call_redis_script('persist-coverage.lua',  { key },  {});
    local results = hgetall("coverband_hash_3_3.coverband_test.runtime../dog.rb.abcd")
    assert.are.same({
      ["0"] = "0",
      ["1"] = "1",
      ["2"] = "2",
      file = "./dog.rb",
      file_hash = "abcd",
      file_length = "3",
      first_updated_at = first_updated_at ,
      last_updated_at = last_updated_at
    }, results)

    results = hgetall("coverband_hash_3_3.coverband_test.runtime../fish.rb.1234")
    assert.are.same({
      ["0"] = "1",
      ["1"] = "0",
      ["2"] = "1",
      file = "./fish.rb",
      file_hash = "1234",
      file_length = "3",
      first_updated_at = first_updated_at ,
      last_updated_at = last_updated_at
    }, results)

    assert.is_false(false, redis.call('exists', key))

    last_updated_at = "1569453953"
    json = cjson.encode({
      ttl = nil,
      files_data = {
        {
          hash_key="coverband_hash_3_3.coverband_test.runtime../dog.rb.abcd",
          meta = {
            first_updated_at=first_updated_at, 
            last_updated_at=last_updated_at, 
            file="./dog.rb", 
            file_hash='abcd', 
            file_length=3
          },
          coverage = {
            ['0']= 1, 
            ['1']= 1, 
            ['2']= 1
          }
        }
      }
    })
    redis.call( 'set', key, json )

    call_redis_script('persist-coverage.lua',  { key },  {} );
    results = hgetall("coverband_hash_3_3.coverband_test.runtime../dog.rb.abcd")
    assert.are.same({
      ["0"] = "1",
      ["1"] = "2",
      ["2"] = "3",
      file = "./dog.rb",
      file_hash = "abcd",
      file_length = "3",
      first_updated_at = first_updated_at,
      last_updated_at = last_updated_at 
    }, results)

    assert.is_false(false, redis.call('exists', key))
  end)
end)