From 868fa10610a4341e7c0d634310049930a33fa9e0 Mon Sep 17 00:00:00 2001
From: "Riley L." <riley@e926.de>
Date: Mon, 12 May 2025 12:34:19 +0200
Subject: add shortcuts to user list to purchase items without scanning

slight mirgation, i.e. sorting products by user is necessary
---
 abrechenbarkeit.lua | 113 ++++++++++++++++++++++++++++++++++++++++------------
 1 file changed, 87 insertions(+), 26 deletions(-)

(limited to 'abrechenbarkeit.lua')

diff --git a/abrechenbarkeit.lua b/abrechenbarkeit.lua
index 0210865..4820094 100755
--- a/abrechenbarkeit.lua
+++ b/abrechenbarkeit.lua
@@ -373,25 +373,27 @@ local function r_transaction_post()
     local pcode = data.pcode
     local pcount = tonumber(data.pcount)
     local comment = data.comment
-	local barcode_name = nil
+	local pname = data.pname
     
-    if pcode ~= nil and pcode ~= "" then
+    if pname ~= nil or (pcode ~= nil and pcode ~= "") then
 		-- check if barcode exists
-		local exists = false
-		for p_name, p_barcode in read_barcodes() do
-			if p_barcode == pcode then
-				exists = true
-				barcode_name = p_name
+		if pname == nil then
+			local exists = false
+			for p_name, p_barcode in read_barcodes() do
+				if p_barcode == pcode then
+					exists = true
+					pname = p_name
+				end
 			end
-		end
-        if not exists then
-            return error_box("{+error.unknown_barcode}")
+	        if not exists then
+	            return error_box("{+error.unknown_barcode}")
+	        end
         end
     
     	-- check if product exists
         local exists = false
         for p_amount, p_user, p_name in read_products() do
-            if barcode_name == p_name then
+            if pname == p_name then
                 pcount = (tonumber(data.pcount) or 1) * (data.negate_pcount ~= nil and -1 or 1)
                 amount = amount or pcount * p_amount
                 user_src = user_src or p_user
@@ -401,7 +403,7 @@ local function r_transaction_post()
             end
         end
         if not exists then
-            return error_box("{+error.unknown_product}"..barcode_name)
+            return error_box("{+error.unknown_product}: "..pname)
         end
     end
 
@@ -467,8 +469,8 @@ local function r_user(username)
                 { time = format_duration(os.time() - last_txn), username = urlencode(username) }))
             print([[</div>]])
         end
-		print([[
-		<ul class="userforms"><li>
+        
+		print([[<ul class="userforms"><li>
         <div class="amount-presets backgroundbox">]])
         for _, type in ipairs({ 1, -1 }) do
             for _, amount in ipairs({ 50, 100, 150, 200, 500, 1000 }) do
@@ -488,6 +490,44 @@ local function r_user(username)
             end
         end
         print("</div></li>")
+        
+        print(format([[<li><div class="backgroundbox shortcuts">
+        	<h3>{+user.shortcuts}</h3>]]))
+        local lastcategory = nil
+        	-- user is category; @ is removed for ZSKs
+            for price, category, name in read_products() do
+             	if lastcategory ~= category then
+             		if lastcategory ~= nil then
+             			print("</ul></div></label>")
+             		end
+					print(format([[<label>
+					<input type="checkbox" hidden />
+					<div>
+					<span class="button amount-ntr">{c}</span>
+					<ul>]], {
+					c = category:gsub("@", ""),
+				}))
+
+				lastcategory = category
+        	end
+
+        	print(format([[<li><form method="POST">
+        		<input type="text" name="user_dst" value="{!username}" hidden />
+        		<input type="number" name="pcount" value="-1" hidden />
+				<input type="text" name="pname" value="{name}" hidden /> 
+				<input class="button amount-ntr" value="{name}
+{+price.amount}" type="submit" />
+			</form></li>]], {
+        		name = name,
+        		username = username,
+        		sign = price >= 0 and "-" or "+",
+		        amount = string.format("%.2f", math.abs(price / 100)),
+		        unit = config.unit or "€",
+        	}))
+		end
+		print("</ul></div></label>")
+
+		print("</div></li>")
 		print(format([[
             <li><form class="transaction box backgroundbox {disable_class}" action="" method="POST">
                 <h3>{+user.form.transaction}</h3>
@@ -516,11 +556,10 @@ local function r_user(username)
 		local users = get_active_users();
 		for _, u in ipairs(users) do
 			if u.name ~= username then
-				print(format("<option value={!name}>{name}</option>", { name = u.name }))
+				print(format([[<option value="{!name}">{name}</option>]], { name = u.name }))
 			end
 		end
-        print(format([[
-                </select>
+        print(format([[</select>
                 <input type="text" name="user_src" value="{!username}" hidden />
                 <label for="amount">{+field.amount}: </label>
                 <input type="number" name="amount" id="amount" />
@@ -538,8 +577,11 @@ local function r_user(username)
                 <label for="pcode">{+field.barcode}: </label>
                 <input type="text" name="pcode" id="pcode" />
                 <input type="submit" value="{+user.form.restock.submit}" class="button amount-pos" />
-            </form></li>
-        ]], { username = username, disable_class = is_special and "disabled" or "" }))
+            </form></li>]],
+            {
+            	username = username,
+            	disable_class = is_special and "disabled" or "",
+            }))
         print("</ul>")
     end)
 end
@@ -743,7 +785,8 @@ local function r_products_post()
     if name == nil or name:match("^" .. matchers.name .. "$") == nil then
         return error_box("{+error.invalid_name}")
     end
-    
+
+    -- delete product
     if data.delete then
         local new_products = io.open("products.new", "w+")
         if new_products == nil then
@@ -798,13 +841,31 @@ local function r_products_post()
         if user == nil or user:match(matchers_global.user) == nil then
             return error_box("{+error.invalid_user}")
         end
-        local products = io.open("products", "a+")
-        if products == nil then
-            return error_box("{+error.open_products}")
+		-- add product
+        local new_products = io.open("products.new", "w+")
+        if new_products == nil then
+            return error_box("{+error.open_new_products}")
+        end
+		local wrote = nil
+		-- prepend to any block in the file containing products of the same user
+		-- the shortcuts feature expects this!
+        for a_price, a_user, a_name in read_products() do
+            if user == a_user and not wrote then
+            	wrote = true
+		        products:write(string.format("%d,%s,%s\n", price, user, name))
+            end
+
+            new_products:write(string.format("%d,%s,%s\n", a_price, a_user, a_name))
+        end
+
+		-- append if not wrote already
+   		if not wrote then
+        	products:write(string.format("%d,%s,%s\n", price, user, name))
         end
-        products:write(string.format("%d,%s,%s\n", price, user, name))
-        products:flush()
-        products:close()
+
+        new_products:flush()
+        new_products:close()
+        os.rename("products.new", "products")
     end
 end
 
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