sTodo/src/Handler/TodolistItem.hs

127 lines
No EOL
5.7 KiB
Haskell

{-# LANGUAGE NoImplicitPrelude #-}
{-# LANGUAGE OverloadedStrings #-}
{-# LANGUAGE MultiParamTypeClasses #-}
{-# LANGUAGE TypeFamilies #-}
{-# LANGUAGE TemplateHaskell #-}
{-# LANGUAGE QuasiQuotes #-}
{-# LANGUAGE FlexibleContexts #-}
{-# OPTIONS_GHC -Wno-unrecognised-pragmas #-}
{-# HLINT ignore "Replace case with fromMaybe" #-}
module Handler.TodolistItem where
import Import
import Database.Persist.Sql (rawExecute)
getTodolistItemsR :: GroupId -> TodolistId -> Handler Html
getTodolistItemsR groupId todolistId = do
mSortOption <- lookupSession "sort"
items <- case mSortOption of
(Just "value") -> dbIfAuth groupId (selectList [TodolistItemTodolistId ==. todolistId] [Desc TodolistItemValue, Asc TodolistItemId])
_ -> dbIfAuth groupId (selectList [TodolistItemTodolistId ==. todolistId] [Asc TodolistItemId])
mToken <- fmap reqToken getRequest
defaultLayout $ do
setTitle "items"
[whamlet|
<a href=@{GroupR}>Home
&nbsp;
<a href=@{TodolistR groupId}>Lists
<ul>
$forall item <- items
<li>
<form action=@{CheckTodolistItemR groupId todolistId (entityKey item)} method="POST">
$maybe token <- mToken
<input type="hidden" name="_token" value="#{token}">
<button type="submit">#{getText item}
<form action=@{AddTodolistItemR groupId todolistId} method="post">
<form action=@{AddTodolistItemR groupId todolistId} method="post">
<input type="text" name="item" placeholder="new item">
$maybe token <- mToken
<input type="hidden" name="_token" value="#{token}">
<button type="submit">add
<form action=@{TrimTodolistItemsR groupId todolistId} method="post">
$maybe token <- mToken
<input type="hidden" name="_token" value="#{token}">
<button type="submit">trim
<form action=@{SortTodolistItemsR groupId todolistId} method="post">
$maybe token <- mToken
<input type="hidden" name="_token" value="#{token}">
<button type="submit">sort
<a href=@{EditTodolistItemsR groupId todolistId}>Edit
|]
postCheckTodolistItemR :: GroupId -> TodolistId -> TodolistItemId -> Handler Html
postCheckTodolistItemR groupId todolistId todolistItemId = do
dbIfAuth groupId (rawExecute "UPDATE todolist_item SET value = NOT value WHERE id = ?" [toPersistValue todolistItemId])
redirect $ TodolistItemsR groupId todolistId
postAddTodolistItemR :: GroupId -> TodolistId -> Handler Html
postAddTodolistItemR groupId todolistId = do
item <- runInputPost $ ireq textField "item"
_ <- dbIfAuth groupId (insert_ $ TodolistItem todolistId False item)
redirect $ TodolistItemsR groupId todolistId
getEditTodolistItemsR :: GroupId -> TodolistId -> Handler Html
getEditTodolistItemsR groupId todolistId = do
items <- dbIfAuth groupId (selectList [TodolistItemTodolistId ==. todolistId] [])
mToken <- fmap reqToken getRequest
let text = unlines $ map getText items
defaultLayout $ do
setTitle "edit"
[whamlet|
<form action=@{EditTodolistItemsR groupId todolistId} method=POST>
<label for="edit text area">Edit todolist
<br>
<textarea id="edit text area" name=text rows=30 cols=50 placeholder="[x] wake up1&#10;[x] eat&#10;[ ] sleep&#10;[ ] repeat">#{text}
$maybe token <- mToken
<input type="hidden" name="_token" value="#{token}">
<br>
<button type="submit">edit
|]
postEditTodolistItemsR :: GroupId -> TodolistId -> Handler Html
postEditTodolistItemsR groupId todolistId = do
mText <- runInputPost $ iopt textField "text"
let xs = case mText of
(Just text) -> getItems text todolistId
Nothing -> []
dbIfAuth groupId (do
deleteWhere [TodolistItemTodolistId ==. todolistId]
insertMany_ xs)
redirect $ TodolistItemsR groupId todolistId
getText :: Entity TodolistItem -> Text
getText item =
if value then "[x] " <> name
else "[ ] " <> name
where
value = (todolistItemValue . entityVal) item
name = (todolistItemName . entityVal) item
getItems :: Text -> TodolistId -> [TodolistItem]
getItems text todolistId = map read (lines text)
where read line = do
let (d, n) = splitAt 4 line
let
value = case d of
"[x] " -> True
"[ ] " -> False
_ -> error "Invalid status"
name = case n of
"" -> error "empty name"
something -> filter (/= '\r') something
TodolistItem todolistId value name
postTrimTodolistItemsR :: GroupId -> TodolistId -> Handler Html
postTrimTodolistItemsR groupId todolistId = do
dbIfAuth groupId (deleteWhere [TodolistItemTodolistId ==. todolistId, TodolistItemValue ==. True])
redirect $ TodolistItemsR groupId todolistId
postSortTodolistItemsR :: GroupId -> TodolistId -> Handler Html
postSortTodolistItemsR groupId todolistId = do
mSession <- lookupSession "sort"
case mSession of
(Just "value") -> setSession "sort" "id"
_ -> setSession "sort" "value"
redirect $ TodolistItemsR groupId todolistId