blob: 6208953223b47092d48e501f917d11e7c8a99271 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
|
{-# LANGUAGE OverloadedStrings #-}
module Main
( main
) where
import Data.List (intersperse)
import qualified Data.Text as T
import qualified Data.Text.IO as T
import Control.Concurrent (threadDelay)
import Ad (getResumes, getAds)
import Model.Ad
import Model.URL
import Model.Resume
import View.Ad (renderAds)
import Page
import Parser.Detail
listenURL :: URL
listenURL = "http://www.leboncoin.fr/annonces/offres/corse/"
main :: IO ()
main = listenToNewAds []
listenToNewAds :: [Ad] -> IO ()
listenToNewAds viewedAds = do
eitherResumes <- getResumes listenURL
case eitherResumes of
Left error ->
listenError viewedAds error
Right resumes ->
listenToNewAdsWithResumes viewedAds resumes
listenToNewAdsWithResumes :: [Ad] -> [Resume] -> IO ()
listenToNewAdsWithResumes viewedAds resumes =
let viewedURLs = getURLs $ map resume viewedAds
newResumes = getNewResumes viewedURLs resumes
in do
eitherNewAds <- getAds newResumes
case eitherNewAds of
Left error ->
listenError viewedAds error
Right newAds ->
do
if not (null newAds)
then
T.putStrLn (newAdsMessage newAds)
else
return ()
waitOneMinute
listenToNewAds (viewedAds ++ newAds)
newAdsMessage :: [Ad] -> T.Text
newAdsMessage newAds =
let newAdsMessage =
T.concat
[ "Got "
, T.pack . show . length $ newAds
, " new ads."
]
line = T.map (\_ -> '-') newAdsMessage
in T.intercalate
"\n"
[ newAdsMessage
, T.concat [line, "\n"]
, renderAds newAds
]
listenError :: [Ad] -> T.Text -> IO ()
listenError viewedAds error = do
T.putStrLn error
waitOneMinute
listenToNewAds viewedAds
waitOneMinute :: IO ()
waitOneMinute = threadDelay (1000 * 1000 * 60)
|
