{- This file is part of Vervis.
 -
 - Written in 2016 by fr33domlover <fr33domlover@riseup.net>.
 -
 - ♡ Copying is an act of love. Please copy, reuse and share.
 -
 - The author(s) have dedicated all copyright and related and neighboring
 - rights to this software to the public domain worldwide. This software is
 - distributed without any warranty.
 -
 - You should have received a copy of the CC0 Public Domain Dedication along
 - with this software. If not, see
 - <http://creativecommons.org/publicdomain/zero/1.0/>.
 -}

module Vervis.Handler.Person
    ( getPeopleR
    , postPeopleR
    , getPersonNewR
    , getPersonR
    )
where

import Vervis.Import hiding ((==.))
--import Prelude

import Database.Esqueleto hiding (isNothing)
import Vervis.Form.Person
--import Model
import Text.Blaze (text)
import Yesod.Auth.HashDB (setPassword)

-- | Get list of users
getPeopleR :: Handler Html
getPeopleR = do
    people <- runDB $ select $ from $ \ (sharer, person) -> do
        where_ $ sharer ^. SharerId ==. person ^. PersonIdent
        orderBy [asc $ sharer ^. SharerIdent]
        return $ sharer ^. SharerIdent
    defaultLayout $ do
        setTitle "Vervis > People"
        $(widgetFile "people")

-- | Create new user
postPeopleR :: Handler Html
postPeopleR = do
    ((result, widget), enctype) <- runFormPost formPersonNew
    case result of
        FormSuccess pn -> do
            runDB $ do
                let sharer = Sharer
                        { sharerIdent = uLogin pn
                        , sharerName  = Nothing
                        }
                sid <- insert sharer
                let person = Person
                        { personIdent = sid
                        , personLogin = uLogin pn
                        , personHash  = Nothing
                        , personEmail = uEmail pn
                        }
                person' <- setPassword (uPass pn) person
                insert_ person'
            redirectUltDest HomeR
        FormMissing -> do
            setMessage "Field(s) missing"
            defaultLayout $(widgetFile "person-new")
        FormFailure l -> do
            setMessage $ toHtml $ intercalate "; " l
            defaultLayout $(widgetFile "person-new")
    --TODO NEXT:
    -- * Maybe make the form return Form Person and just insert defaults (using
    -- 'pure') for the remaining Person fields? Then, maybe the same form can
    -- be used to generate the RESTful JSON API query that adds a Person with
    -- their entire details. Dunno if it matters, just could be good/nice/cool.

getPersonNewR :: Handler Html
getPersonNewR = do
    mpid <- maybeAuthId
    if isJust mpid
        then redirect HomeR
        else do
            ((_result, widget), enctype) <- runFormPost formPersonNew
            defaultLayout $ do
                setTitle "Vervis > People > New"
                $(widgetFile "person-new")

getPersonR :: Text -> Handler Html
getPersonR ident = do
    people <- runDB $ select $ from $ \ (sharer, person) -> do
        where_ $
            sharer ^. SharerIdent ==. val ident &&.
            sharer ^. SharerId ==. person ^. PersonIdent
        return person
    case people of
        []   -> notFound
        p:ps -> defaultLayout $ do
            let mperson = if null ps then Just p else Nothing
            setTitle $ text $ "Vervis > People > " <> ident
            $(widgetFile "person")