From 20c3a25e43eca445b34329547a619a874ea7fbd4 Mon Sep 17 00:00:00 2001
From: metamuffin <metamuffin@disroot.org>
Date: Sun, 3 Nov 2024 19:38:24 +0100
Subject: [PATCH] add columns for product txns

---
 abrechenbarkeit.lua | 43 ++++++++++++++++++++++++++++++++-----------
 1 file changed, 32 insertions(+), 11 deletions(-)

diff --git a/abrechenbarkeit.lua b/abrechenbarkeit.lua
index 0e246af..17e08f4 100755
--- a/abrechenbarkeit.lua
+++ b/abrechenbarkeit.lua
@@ -118,8 +118,9 @@ local function read_log()
         if l == "" or l == nil then
             return nil
         end
-        local time, username, amount, comment = string.match(l, "(%d+),([%w_ -]+),(-?%d+),([%w_ -]*)")
-        return tonumber(time), username, tonumber(amount), comment
+        local time, username, amount, pcode, pcount, comment = string.match(l,
+            "(%d+),([%w_ -]+),(-?%d+),([%w_-]*),(-?%d*),([%w_ -]*)")
+        return tonumber(time), username, tonumber(amount), pcode, tonumber(pcount), comment
     end
 end
 
@@ -141,15 +142,25 @@ end
 
 local function balances()
     local users = {}
-    for _, username, amount, _ in read_log() do
+    for _, username, amount, _, _, _ in read_log() do
         users[username] = (users[username] or 0) + amount
     end
     return users
 end
 
+local function product_balances()
+    local products = {}
+    for _, _, _, pcode, pcount, _ in read_log() do
+        if pcode ~= nil and pcount ~= nil then
+            products[pcode] = (products[pcode] or 0) + pcount
+        end
+    end
+    return products
+end
+
 local function last_txns()
     local users = {}
-    for time, username, _, _ in read_log() do
+    for time, username, _, _, _, _ in read_log() do
         users[username] = time
     end
     return users
@@ -163,10 +174,14 @@ local function r_user_post(username)
     local data = form_data()
     local amount = nil
     local comment = ""
+    local pcode = nil
+    local pcount = nil
     if data.product then
         for p_barcode, p_amount, p_name in read_products() do
             if p_barcode == data.product then
-                amount = p_amount
+                pcount = tonumber(data.count) or -1
+                pcode = p_barcode
+                amount = pcount * p_amount
                 comment = p_name
             end
         end
@@ -188,7 +203,7 @@ local function r_user_post(username)
         return error_box("failed to open log")
     end
     local time = os.time()
-    log:write(string.format("%d,%s,%d,%s\n", time, username, amount, comment))
+    log:write(string.format("%d,%s,%d,%s,%s,%s\n", time, username, amount, pcode or "", pcount or "", comment))
     log:flush()
     log:close()
     return string.format([[
@@ -263,8 +278,8 @@ end
 local function r_log(filter)
     return respond(200, "Abrechnungen", function()
         print("<table>")
-        print("<tr><th>Time</th><th>Username</th><th>Amount</th><th>Comment</th></tr>")
-        for time, username, amount, comment in read_log() do
+        print("<tr><th>Time</th><th>Username</th><th>Amount</th><th>P.-Barcode</th><th>P.-Count</th><th>Comment</th></tr>")
+        for time, username, amount, pcode, pcount, comment in read_log() do
             if filter == nil or filter == username then
                 print(string.format([[
                     <tr>
@@ -272,6 +287,8 @@ local function r_log(filter)
                         <td>%s</td>
                         <td class="amount-%s">%.02f€</td>
                         <td>%s</td>
+                        <td>%s</td>
+                        <td>%s</td>
                         <td>
                             <form action="/%s" method="POST">
                                 <input type="number" name="amount" id="amount" value="%d" hidden />
@@ -284,6 +301,8 @@ local function r_log(filter)
                     time, format_duration(os.time() - time),
                     escape(username),
                     amount >= 0 and "pos" or "neg", amount / 100,
+                    escape(pcode) or "",
+                    pcount and tostring(pcount) or "",
                     escape(comment),
                     escape(username),
                     -amount,
@@ -397,14 +416,16 @@ local function r_products()
             </form>
             </div>
         ]])
-        print("<table><tr><th>Name</th><th>Price</th><th>Barcode</th></tr>")
+        print("<table><tr><th>Name</th><th>Price</th><th>Barcode</th><th>Count</th></tr>")
+        local pbals = product_balances()
         for barcode, price, name in read_products() do
             print(string.format([[
-                <tr><td>%s</td><td class="amount-%s">%.02f€</td><td>%s</td></tr>
+                <tr><td>%s</td><td class="amount-%s">%.02f€</td><td>%s</td><td>%s</td></tr>
             ]],
                 name,
                 price >= 0 and "pos" or "neg", price / 100,
-                barcode
+                barcode,
+                pbals[barcode] or "0"
             ))
         end
         print("</table>")