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1-
local HOST = "bridge.computercraft.ru:1111"
1+
local HOST = "bridge.computercraft.ru:1111"
2-
local commandIdent = "+#"
2+
local commandIdent = "+#"
3-
local deviceCommandIdent = "+$"
3+
local deviceCommandIdent = "+$"
4-
local internet
4+
local internet
5-
local socket, connectedToBridge, connectedToDevice, KEY
5+
local socket, connectedToBridge, connectedToDevice, KEY
6-
local msgBuffer = {}
6+
local msgBuffer = {}
7-
local BR = {}
7+
local BR = {}
8-
8+
9-
function BR.split(source, delimiters)
9+
function BR.split(source, delimiters)

10-
  local elements = {}
10+
  local elements = {}

11-
  local pattern = '([^'..delimiters..']+)'
11+
  local pattern = '([^'..delimiters..']+)'

12-
  string.gsub(source, pattern, function(value) elements[#elements + 1] =     value;  end);
12+
  string.gsub(source, pattern, function(value) elements[#elements + 1] =     value;  end);

13-
  return elements
13+
  return elements

14-
end
14+
end

15-
15+
16-
local function tableToJSON(arr)
16+
local function tableToJSON(arr)

17-
  local json = "{"
17+
  local json = "{"

18-
  local delim = ""
18+
  local delim = ""

19-
  for k, v in pairs(arr) do
19+
  for k, v in pairs(arr) do

20-
    json = json .. delim .."\"" .. tostring(k) .. "\":\"" .. tostring(v) .. "\""
20+
    json = json .. delim .."\"" .. tostring(k) .. "\":\"" .. tostring(v) .. "\""

21-
    delim = ","
21+
    delim = ","

22-
  end
22+
  end

23-
  json = json.."}"
23+
  json = json.."}"

24-
  return json
24+
  return json

25-
end
25+
end

26-
26+
27-
local function enqueue(array, n)
27+
local function enqueue(array, n)

28-
  n = n or 1
28+
  n = n or 1

29-
  for i = n, #array do
29+
  for i = n, #array do

30-
    table.insert(msgBuffer, array[i])
30+
    table.insert(msgBuffer, array[i])

31-
  end
31+
  end

32-
end
32+
end

33-
33+
34-
function BR.isBridgeConnected() return connectedToBridge end
34+
function BR.isBridgeConnected() return connectedToBridge end

35-
function BR.isPairConnected() return connectedToDevice end
35+
function BR.isPairConnected() return connectedToDevice end

36-
36+
37-
function BR.sendNotification(notif)
37+
function BR.sendNotification(notif)

38-
  BR.send(deviceCommandIdent .. "31 " .. tableToJSON(notif))
38+
  BR.send(deviceCommandIdent .. "31 " .. tableToJSON(notif))

39-
end
39+
end

40-
40+
41-
function BR.sendToast(text, duration)
41+
function BR.sendToast(text, duration)

42-
  duration = duration or 0
42+
  duration = duration or 0

43-
  BR.send(deviceCommandIdent .. "30 " .. tostring(duration) .. " " .. text)
43+
  BR.send(deviceCommandIdent .. "30 " .. tostring(duration) .. " " .. text)

44-
end
44+
end

45-
45+
46-
function BR.send(str)
46+
function BR.send(str)

47-
  if not str or str == "" then return false end
47+
  if not str or str == "" then return false end

48-
  local data = str.."\0"
48+
  local data = str.."\0"

49-
  local buff
49+
  local buff

50-
  local i = 0
50+
  local i = 0

51-
  while i < 6 do
51+
  while i < 6 do

52-
    buff = socket.write(data)
52+
    buff = socket.write(data)

53-
    if not buff then
53+
    if not buff then

54-
      connectedToBridge = false
54+
      connectedToBridge = false

55-
      return false
55+
      return false

56-
    elseif buff > 0 then
56+
    elseif buff > 0 then

57-
      return true
57+
      return true

58-
    end
58+
    end

59-
    -- RETRY IF BUFF IS 0
59+
    -- RETRY IF BUFF IS 0

60-
    i = i + 1
60+
    i = i + 1

61-
  end
61+
  end

62-
62+
63-
  return true  
63+
  return true  

64-
end
64+
end

65-
65+
66-
local function execCommand(cmd)
66+
local function execCommand(cmd)

67-
  local cmdNum = string.sub(cmd, 3, 4)
67+
  local cmdNum = string.sub(cmd, 3, 4)

68-
68+
69-
  if     cmdNum == "00" then 
69+
  if     cmdNum == "00" then 

70-
    --ping
70+
    --ping

71-
    BR.send(string.sub(cmd, 1, 2) .. "01") --REPLY TO SENDER
71+
    BR.send(string.sub(cmd, 1, 2) .. "01") --REPLY TO SENDER

72-
  elseif cmdNum == "01" then
72+
  elseif cmdNum == "01" then

73-
    --pong
73+
    --pong

74-
  elseif cmdNum == "02" then
74+
  elseif cmdNum == "02" then

75-
    connectedToBridge = false
75+
    connectedToBridge = false

76-
    --bridge stopped
76+
    --bridge stopped

77-
  elseif cmdNum == "10" then
77+
  elseif cmdNum == "10" then

78-
    connectedToDevice = false
78+
    connectedToDevice = false

79-
    --no pair
79+
    --no pair

80-
  elseif cmdNum == "20" then
80+
  elseif cmdNum == "20" then

81-
    connectedToDevice = true
81+
    connectedToDevice = true

82-
    --pair found
82+
    --pair found

83-
  elseif cmdNum == "21" then
83+
  elseif cmdNum == "21" then

84-
    connectedToDevice = false
84+
    connectedToDevice = false

85-
  end
85+
  end

86-
end
86+
end

87-
87+
88-
local function isCommand(str)
88+
local function isCommand(str)

89-
  if string.sub(str, 1, 1) == "+" then
89+
  if string.sub(str, 1, 1) == "+" then

90-
    return true
90+
    return true

91-
  end
91+
  end

92-
  return false
92+
  return false

93-
end
93+
end

94-
94+
95-
function BR.receive()
95+
function BR.receive()

96-
  local buff
96+
  local buff

97-
  if connectedToBridge then
97+
  if connectedToBridge then

98-
    buff = socket.read()
98+
    buff = socket.read()

99-
    if buff == nil then --CONNECTION LOST
99+
    if buff == nil then --CONNECTION LOST

100-
      connectedToBridge = false
100+
      connectedToBridge = false

101-
      connectedToDevice = false
101+
      connectedToDevice = false

102-
      return nil, false
102+
      return nil, false

103-
    elseif #msgBuffer > 0 then --IF BUFFER HAS DATA
103+
    elseif #msgBuffer > 0 then --IF BUFFER HAS DATA

104-
      if buff ~= "" then --IF MESSAGE IS NOT EMPTY
104+
      if buff ~= "" then --IF MESSAGE IS NOT EMPTY

105-
        enqueue(BR.split(buff, "\0"))
105+
        enqueue(BR.split(buff, "\0"))

106-
      end
106+
      end

107-
107+
108-
      buff = table.remove(msgBuffer, 1) --GET FIRST MESSAGE FROM BUFFER
108+
      buff = table.remove(msgBuffer, 1) --GET FIRST MESSAGE FROM BUFFER

109-
    elseif buff == "" then
109+
    elseif buff == "" then

110-
      return buff, connectedToDevice
110+
      return buff, connectedToDevice

111-
    end
111+
    end

112-
112+
113-
    local m = BR.split(buff, "\0")
113+
    local m = BR.split(buff, "\0")

114-
    if #m > 1 then
114+
    if #m > 1 then

115-
      enqueue(m, 2)
115+
      enqueue(m, 2)

116-
      buff = m[1]
116+
      buff = m[1]

117-
    end
117+
    end

118-
118+
119-
    while true do
119+
    while true do

120-
      if isCommand(buff) then
120+
      if isCommand(buff) then

121-
        execCommand(buff)
121+
        execCommand(buff)

122-
        --return "", connectedToDevice
122+
        --return "", connectedToDevice

123-
        if(#msgBuffer > 0) then
123+
        if(#msgBuffer > 0) then

124-
          buff = table.remove(msgBuffer, 1)
124+
          buff = table.remove(msgBuffer, 1)

125-
        else
125+
        else

126-
          return "", connectedToDevice
126+
          return "", connectedToDevice

127-
        end
127+
        end

128-
      else
128+
      else

129-
        buff = BR.split(buff, "\0")[1] --CUT \0   
129+
        buff = BR.split(buff, "\0")[1] --CUT \0   

130-
        return string.sub(buff, 2, #buff), connectedToDevice
130+
        return string.sub(buff, 2, #buff), connectedToDevice

131-
      end
131+
      end

132-
    end
132+
    end

133-
  end    
133+
  end    

134-
  return nil, false
134+
  return nil, false

135-
end
135+
end

136-
136+
137-
function BR.init(key)
137+
function BR.init(key)

138-
  if not key or key == "" then return false end
138+
  if not key or key == "" then return false end

139-
  KEY = key
139+
  KEY = key

140-
  internet = require("component").internet
140+
  internet = require("component").internet

141-
  socket = internet.connect(HOST)
141+
  socket = internet.connect(HOST)

142-
  if not socket then return false end
142+
  if not socket then return false end

143-
  local i = 0
143+
  local i = 0

144-
  while not socket.finishConnect() do 
144+
  while not socket.finishConnect() do 

145-
    if i >= 5 then
145+
    if i >= 5 then

146-
      return false
146+
      return false

147-
    end 
147+
    end 

148-
    i = i + 1
148+
    i = i + 1

149-
    os.sleep(0.1) 
149+
    os.sleep(0.1) 

150-
  end
150+
  end

151-
151+
152-
  BR.send("KOC-"..key)
152+
  BR.send("KOC-"..key)

153-
  connectedToDevice = false
153+
  connectedToDevice = false

154-
  connectedToBridge = true
154+
  connectedToBridge = true

155-
  return true
155+
  return true

156-
end
156+
end

157-
157+
158
return BR
        

    


            


                                


        

            



                
    

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