(ns iol-ion.integration.tx
  (:require
   [auto-ap.datomic :refer [conn]]
   [auto-ap.integration.util
    :refer [setup-test-data test-invoice wrap-setup apply-tx]]
   [clojure.test :as t :refer [deftest is use-fixtures testing]]
   [datomic.client.api :as dc]
   [iol-ion.tx :as sut]))

(use-fixtures :each wrap-setup)

(def journal-pull [:journal-entry/date
                   :journal-entry/original-entity
                   :journal-entry/client
                   :journal-entry/source
                   :journal-entry/cleared
                   :journal-entry/amount
                   :journal-entry/vendor
                   {:journal-entry/line-items [{:journal-entry-line/account '[:account/name]}
                                               :journal-entry-line/location
                                               :journal-entry-line/credit
                                               :journal-entry-line/dirty
                                               :journal-entry-line/debit]}])


(deftest upsert-invoice
  (testing "Importing should create a journal entry"
    (let [{:strs [invoice-id
                  test-client-id
                  test-vendor-id
                  ]} (setup-test-data
                                 [(test-invoice :db/id "invoice-id"
                                                :invoice/import-status :import-status/pending
                                                :invoice/total 200.0
                                                )])]
      
      (is (nil? (:db/id (dc/pull (dc/db conn) journal-pull
                                 [:journal-entry/original-entity invoice-id]))))
      (let [db-after   (apply-tx (sut/upsert-invoice
                                   (dc/with-db conn)
                                   {:db/id                 invoice-id
                                    :invoice/import-status :import-status/imported}))]
        
        (is (= #:journal-entry{:date            #inst "2022-01-01T00:00:00.000-00:00",
                        :original-entity #:db{:id invoice-id},
                        :client          #:db{:id test-client-id},
                        :line-items
                        [#:journal-entry-line{:account
                                              #:account{:name
                                                        "Accounts Payable"},
                                              :credit   200.0,
                                              :location "A",
                                              :dirty    true}
                         #:journal-entry-line{:account
                                              #:account{:name "Account"},
                                              :location "DT",
                                              :dirty    true,
                                              :debit    100.0}],
                        :source          "invoice",
                        :cleared         false,
                        :amount          200.0,
                        :vendor          #:db{:id test-vendor-id}} 
               (dc/pull db-after journal-pull
                        [:journal-entry/original-entity invoice-id])))

        (testing "voiding an invoice should remove the journal entry"
          (let [db-after (apply-tx (sut/upsert-invoice
                                       (dc/with-db conn)
                                       {:db/id                 invoice-id
                                        :invoice/status :invoice-status/voided}))]
            
            (is (= nil 
                   (dc/pull db-after journal-pull
                            [:journal-entry/original-entity invoice-id])))))
        (testing "invoice should remove the journal entry"
          (let [db-after (apply-tx (sut/upsert-invoice
                                     (dc/db conn)
                                     {:db/id          invoice-id
                                      :invoice/status :invoice-status/unpaid
                                      :invoice/import-status :import-status/pending}))]
            
            (is (= nil 
                   (dc/pull db-after journal-pull
                            [:journal-entry/original-entity invoice-id])))))))))