From 270546823f0f68981446646904b3f40a896e8153 Mon Sep 17 00:00:00 2001
From: Knut Ahlers <knut@ahlers.me>
Date: Sat, 20 Jan 2024 23:08:28 +0100
Subject: [PATCH] Allow to bulk-move transactions to today

Signed-off-by: Knut Ahlers <knut@ahlers.me>
---
 frontend/components/accountOverview.vue | 33 +++++++++++++
 go.mod                                  |  1 +
 go.sum                                  |  2 +
 pkg/api/transaction.go                  | 61 +++++++++++++++++++++++++
 4 files changed, 97 insertions(+)

diff --git a/frontend/components/accountOverview.vue b/frontend/components/accountOverview.vue
index 13cc29b..59ac1a4 100644
--- a/frontend/components/accountOverview.vue
+++ b/frontend/components/accountOverview.vue
@@ -67,6 +67,16 @@
               <span class="visually-hidden">Toggle Dropdown</span>
             </button>
             <ul class="dropdown-menu">
+              <li>
+                <button
+                  class="dropdown-item"
+                  :disabled="selectedTx.length < 1"
+                  @click="moveToToday"
+                >
+                  <i class="fas fa-fw fa-calendar-days mr-1" />
+                  Move to Today
+                </button>
+              </li>
               <li>
                 <button
                   class="dropdown-item text-danger"
@@ -435,6 +445,29 @@ export default {
         .then(() => this.fetchTransactions())
     },
 
+    moveToToday() {
+      const actions = []
+      for (const id of this.selectedTx) {
+        actions.push(fetch(`/api/transactions/${id}`, {
+          body: JSON.stringify([
+            {
+              op: 'replace',
+              path: '/time',
+              value: new Date(new Date().toISOString()
+                .split('T')[0]),
+            },
+          ]),
+          method: 'PATCH',
+        }))
+      }
+
+      Promise.all(actions)
+        .then(() => {
+          this.$emit('update-accounts')
+          this.fetchTransactions()
+        })
+    },
+
     transferMoney() {
       const params = new URLSearchParams()
       params.set('amount', this.modals.createTransfer.amount.toFixed(2))
diff --git a/go.mod b/go.mod
index a5cb824..b6fd827 100644
--- a/go.mod
+++ b/go.mod
@@ -11,6 +11,7 @@ require (
 	github.com/pkg/errors v0.9.1
 	github.com/sirupsen/logrus v1.9.3
 	github.com/stretchr/testify v1.8.4
+	gopkg.in/evanphx/json-patch.v5 v5.8.1
 	gorm.io/driver/postgres v1.5.4
 	gorm.io/gorm v1.25.5
 )
diff --git a/go.sum b/go.sum
index 0380e43..88e2199 100644
--- a/go.sum
+++ b/go.sum
@@ -65,6 +65,8 @@ golang.org/x/text v0.14.0/go.mod h1:18ZOQIKpY8NJVqYksKHtTdi31H5itFRjB5/qKTNYzSU=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c h1:Hei/4ADfdWqJk1ZMxUNpqntNwaWcugrBjAiHlqqRiVk=
 gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c/go.mod h1:JHkPIbrfpd72SG/EVd6muEfDQjcINNoR0C8j2r3qZ4Q=
+gopkg.in/evanphx/json-patch.v5 v5.8.1 h1:BVxXj2YS+4i9fttNkVvDKi4Pg1pVMpVE8tdEwaKeQY0=
+gopkg.in/evanphx/json-patch.v5 v5.8.1/go.mod h1:/kvTRh1TVm5wuM6OkHxqXtE/1nUZZpihg29RtuIyfvk=
 gopkg.in/validator.v2 v2.0.1 h1:xF0KWyGWXm/LM2G1TrEjqOu4pa6coO9AlWSf3msVfDY=
 gopkg.in/validator.v2 v2.0.1/go.mod h1:lIUZBlB3Im4s/eYp39Ry/wkR02yOPhZ9IwIRBjuPuG8=
 gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
diff --git a/pkg/api/transaction.go b/pkg/api/transaction.go
index c31fae0..5fb5053 100644
--- a/pkg/api/transaction.go
+++ b/pkg/api/transaction.go
@@ -1,14 +1,17 @@
 package api
 
 import (
+	"bytes"
 	"encoding/json"
 	"errors"
+	"io"
 	"net/http"
 	"time"
 
 	"git.luzifer.io/luzifer/accounting/pkg/database"
 	"github.com/google/uuid"
 	"github.com/gorilla/mux"
+	jsonpatch "gopkg.in/evanphx/json-patch.v5"
 	"gorm.io/gorm"
 )
 
@@ -179,5 +182,63 @@ func (a apiServer) handleUpdateTransaction(w http.ResponseWriter, r *http.Reques
 		}
 	}
 
+	a.handleTransactionJSONPatch(txID, w, r)
+}
+
+func (a apiServer) handleTransactionJSONPatch(txID uuid.UUID, w http.ResponseWriter, r *http.Request) {
+	var (
+		err     error
+		reqBody = new(bytes.Buffer)
+	)
+
+	if _, err = io.Copy(reqBody, r.Body); err != nil {
+		a.errorResponse(w, err, "reading request body", http.StatusBadRequest)
+		return
+	}
+
+	if reqBody.Len() < 2 { //nolint:gomnd
+		w.WriteHeader(http.StatusNoContent)
+		return
+	}
+
+	var patch jsonpatch.Patch
+	if err = json.NewDecoder(reqBody).Decode(&patch); err != nil {
+		a.errorResponse(w, err, "parsing json-patch body", http.StatusBadRequest)
+		return
+	}
+
+	if len(patch) == 0 {
+		w.WriteHeader(http.StatusNoContent)
+		return
+	}
+
+	tx, err := a.dbc.GetTransactionByID(txID)
+	if err != nil {
+		a.errorResponse(w, err, "getting transaction", http.StatusInternalServerError)
+		return
+	}
+
+	txdoc, err := json.Marshal(tx)
+	if err != nil {
+		a.errorResponse(w, err, "marshalling transaction", http.StatusInternalServerError)
+		return
+	}
+
+	if txdoc, err = patch.Apply(txdoc); err != nil {
+		a.errorResponse(w, err, "applying patch", http.StatusInternalServerError)
+		return
+	}
+
+	var updTx database.Transaction
+	if err = json.Unmarshal(txdoc, &updTx); err != nil {
+		a.errorResponse(w, err, "unmarshalling transaction", http.StatusInternalServerError)
+		return
+	}
+
+	if err = a.dbc.UpdateTransaction(txID, updTx); err != nil {
+		a.errorResponse(w, err, "updating transaction", http.StatusInternalServerError)
+		return
+	}
+
 	w.WriteHeader(http.StatusNoContent)
 }