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(ns lezer.controller.routes
(:require lezer.view.main :refer [index-html])
(:require lezer.view.author :refer [author-html])
(:require lezer.module.greet :as g)
(:require phel.router :as r)
(:require phel.http :as h)
(:require phel.pdo)
(:require phel.string :as str)
(:require lezer.db :refer [conn]))
(defn get-books []
(pdo/select conn "select * from books"))
(defn get-authors-by-book [book]
(pdo/select
conn
"select * from authors where id in (select author_id from authors_books where book_id = :book_id)"
{:book_id (:id book)}))
(defn create-book [fields]
(pdo/insert conn :books fields))
(defn get-or-create-author-by-name [fields]
(or (pdo/fetch-column
(pdo/query conn "select id from authors where name = :name"
{:name (:name fields)}))
(pdo/insert conn :authors fields)))
(defn get-book-pages-by-id [book-id]
(pdo/fetch-column (pdo/query conn "select pages from books where id = :id" {:id book-id})))
(defn create-book-session [fields]
(pdo/insert conn :books_sessions fields))
(defn create-session-progress [fields]
(pdo/insert conn :sessions_progress fields))
(defn index-handler [req router]
(let [books (for [b :in (get-books)]
{:book b
:authors (get-authors-by-book b)})]
(h/response-from-map {:status 200
:body (index-html books router)})))
(defn get-author-by-id [id]
(first (pdo/select conn "select * from authors where id = :author_id" {:author_id id})))
(defn get-books-by-author-id [id]
(pdo/select conn "select * from books where id in (select book_id from authors_books where author_id = :author_id)" {:author_id id}))
(defn add-author-to-book [book-id fields]
(pdo/insert conn :authors_books {:book_id book-id
:author_id (get-or-create-author-by-name fields)}))
(defn book-create-handler [request]
(let [title (get-in request [:parsed-body "title"])
subtitle (get-in request [:parsed-body "subtitle"])
authors (str/split (get-in request [:parsed-body "author"]) #",")
pages (get-in request [:parsed-body "pages"])]
(pdo/with-transaction conn
(let [time (php/time)
book-id (create-book {:title title
:subtitle subtitle
:pages pages
:created_at time
:updated_at time})]
(for [a :in authors]
(add-author-to-book book-id {:name (str/trim a)
:created_at time
:updated_at time})))))
(h/response-from-map {:status 301 :headers {:location "/"}}))
(defn book-session-create-handler [request]
(let [id (get-in request [:attributes :match :path-params :id])
pages (get-book-pages-by-id id)
time (php/time)]
(pdo/with-transaction conn
(let [session-id (create-book-session {:book_id id
:status "started"
:started_at time
:created_at time
:updated_at time})]
(create-session-progress {:session_id session-id
:progress 0
:total pages
:created_at time
:updated_at time}))))
(h/response-from-map {:status 301 :headers {:location "/"}}))
(defn author-view-handler [req]
(let [id (get-in req [:attributes :match :path-params :id])
author (get-author-by-id id)
books (get-books-by-author-id id)]
(h/response-from-map {:status 200 :body (author-html author books)})))
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