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0
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1 local Luan = require "luan:Luan.luan"
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2 local error = Luan.error
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4
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3 local ipairs = Luan.ipairs or error()
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4 local pairs = Luan.pairs or error()
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5 local Table = require "luan:Table.luan"
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6 local concat = Table.concat or error()
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0
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7 local Io = require "luan:Io.luan"
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8 local Http = require "luan:http/Http.luan"
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9 local Shared = require "site:/lib/Shared.luan"
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10 local head = Shared.head or error()
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11 local header = Shared.header or error()
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4
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12 local User = require "site:/lib/User.luan"
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13 local current_user = User.current_required or error()
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14 local get_user_by_id = User.get_by_id or error()
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15 local get_user_by_email = User.get_by_email or error()
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16 local Utils = require "site:/lib/Utils.luan"
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17 local to_set = Utils.to_set or error()
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18 local Db = require "site:/lib/Db.luan"
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19 local run_in_transaction = Db.run_in_transaction or error()
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20 local Chat = require "site:/lib/Chat.luan"
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21 local chat_search = Chat.search or error()
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0
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22
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23
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4
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24 local function other_users(user,chat)
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25 local my_id = user.id
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26 local t = {}
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27 for _, user_id in ipairs(chat.user_ids) do
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28 if user_id ~= my_id then
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29 local other_user = get_user_by_id(user_id) or error()
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30 t[#t+1] = other_user.email
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31 end
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32 end
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33 return concat( t, ", " )
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34 end
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35
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36 local function get_chat(with)
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37 local t = {}
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38 local ids = {}
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39 for email in pairs(with) do
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40 local with_user = get_user_by_email(email) or error()
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41 local id = with_user.id
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42 t[#t+1] = "+chat_user_ids:"..id
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43 ids[#ids+1] = id
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44 end
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45 local query = concat(t," ")
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46 run_in_transaction( function()
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47 local chats = chat_search(query)
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48 local n = #chats
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49 if n == 0 then
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50 local chat = Chat.new{
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51 user_ids = ids
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52 }
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53 chat.save()
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54 return chat
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55 elseif n == 1 then
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56 return chats[1]
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57 else
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58 error("multiple chats for: "..query)
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59 end
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60 end )
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61 end
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62
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0
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63 return function()
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4
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64 local user = current_user()
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65 if user == nil then
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66 return
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67 end
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68 local with = Http.request.parameters.with
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69 if with ~= nil then
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70 with = to_set(with)
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71 with[user.email] = true
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72 get_chat(with)
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73 end
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74 local chats = user.get_chats()
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0
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75 Io.stdout = Http.response.text_writer()
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76 %>
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77 <!doctype html>
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78 <html>
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79 <head>
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80 <% head() %>
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81 </head>
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82 <body>
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83 <% header() %>
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84 <div content>
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4
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85 <h1>Chat</h1>
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86 <% for _, chat in ipairs(chats) do %>
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87 <p><%= other_users(user,chat) %></p>
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88 <% end %>
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0
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89 </div>
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90 </body>
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91 </html>
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92 <%
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93 end
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