commit 9fe87ea60523fcd36d659b291b81241546d9c2b7
Author: Thaddeus Hughes <hughes.thad@gmail.com>
Date:   Wed Sep 17 22:24:56 2025 -0500

    initial commit. includes sample data
    
    works but unpretty

diff --git a/LogAB(20).joined.csv b/LogAB(20).joined.csv
new file mode 100644
index 0000000..bbb688e
--- /dev/null
+++ b/LogAB(20).joined.csv
@@ -0,0 +1,4 @@
+gross_weight,gross_time,tare_weight,tare_time,net
+0,06:12 PM 09/17/25,3780,06:13 PM 09/17/25,-3780
+3780,10:18 PM 09/17/25,3640,10:19 PM 09/17/25,140
+1640,10:19 PM 09/17/25,0,10:20 PM 09/17/25,1640
diff --git a/LogAB(20).sequential.csv b/LogAB(20).sequential.csv
new file mode 100644
index 0000000..8eac6f8
--- /dev/null
+++ b/LogAB(20).sequential.csv
@@ -0,0 +1,7 @@
+weight,timestamp
+0,06:12 PM 09/17/25
+3780,06:13 PM 09/17/25
+3780,10:18 PM 09/17/25
+3640,10:19 PM 09/17/25
+1640,10:19 PM 09/17/25
+0,10:20 PM 09/17/25
diff --git a/LogAB(20).txt b/LogAB(20).txt
new file mode 100644
index 0000000..745b5ee
--- /dev/null
+++ b/LogAB(20).txt
@@ -0,0 +1,18 @@
+GROSS        00 lb
+
+06:12 PM 09/17/25
+GROSS      3780 lb
+
+06:13 PM 09/17/25
+GROSS      3780 lb
+
+10:18 PM 09/17/25
+GROSS      3640 lb
+
+10:19 PM 09/17/25
+GROSS      1640 lb
+
+10:19 PM 09/17/25
+GROSS        00 lb
+
+10:20 PM 09/17/25
diff --git a/main.py b/main.py
new file mode 100644
index 0000000..6578853
--- /dev/null
+++ b/main.py
@@ -0,0 +1,114 @@
+import re
+import csv
+import tkinter as tk
+from tkinter import filedialog, messagebox
+import os
+
+def parse_logs(log_text):
+    lines = log_text.splitlines()
+    if lines and '=~' in lines[0]:
+        lines = lines[1:]
+    
+    pairs = []
+    i = 0
+    while i < len(lines):
+        line = lines[i].strip()
+        if not line:
+            i += 1
+            continue
+        
+        match = re.match(r'^GROSS\s+(\d+)\s*lb$', line)
+        if match:
+            weight = int(match.group(1))
+            i += 2
+            if i < len(lines):
+                ts_line = lines[i].strip()
+                if re.match(r'^\d{2}:\d{2} (AM|PM) \d{2}/\d{2}/\d{2}$', ts_line):
+                    pairs.append((weight, ts_line))
+                    i += 1
+                else:
+                    i += 1
+        else:
+            i += 1
+    
+    return pairs
+
+def write_csv1(pairs, filename):
+    with open(filename, 'w', newline='') as f:
+        writer = csv.writer(f)
+        writer.writerow(['weight', 'timestamp'])
+        for weight, timestamp in pairs:
+            writer.writerow([weight, timestamp])
+
+def write_csv2(pairs, filename):
+    with open(filename, 'w', newline='') as f:
+        writer = csv.writer(f)
+        writer.writerow(['gross_weight', 'gross_time', 'tare_weight', 'tare_time', 'net'])
+        for j in range(0, len(pairs), 2):
+            if j + 1 < len(pairs):
+                gross_weight, gross_time = pairs[j]
+                tare_weight, tare_time = pairs[j + 1]
+                net = gross_weight - tare_weight
+                writer.writerow([gross_weight, gross_time, tare_weight, tare_time, net])
+
+def select_input_file():
+    filename = filedialog.askopenfilename(filetypes=[("Text files", "*.txt"), ("All files", "*.*")])
+    if filename:
+        input_file_var.set(filename)
+        # Auto-populate output file names
+        base = os.path.splitext(filename)[0]
+        output_file1_var.set(f"{base}.sequential.csv")
+        output_file2_var.set(f"{base}.joined.csv")
+
+def select_output_file1():
+    filename = filedialog.asksaveasfilename(defaultextension=".csv", filetypes=[("CSV files", "*.csv"), ("All files", "*.*")])
+    if filename:
+        output_file1_var.set(filename)
+
+def select_output_file2():
+    filename = filedialog.asksaveasfilename(defaultextension=".csv", filetypes=[("CSV files", "*.csv"), ("All files", "*.*")])
+    if filename:
+        output_file2_var.set(filename)
+
+def process_files():
+    input_file = input_file_var.get()
+    output_file1 = output_file1_var.get()
+    output_file2 = output_file2_var.get()
+    
+    if not input_file or not output_file1 or not output_file2:
+        messagebox.showerror("Error", "Please select all input and output files.")
+        return
+    
+    try:
+        with open(input_file, 'r') as f:
+            log_text = f.read()
+        pairs = parse_logs(log_text)
+        write_csv1(pairs, output_file1)
+        write_csv2(pairs, output_file2)
+        messagebox.showinfo("Success", "CSV files generated successfully!")
+    except Exception as e:
+        messagebox.showerror("Error", f"An error occurred: {str(e)}")
+
+root = tk.Tk()
+root.title("Log to CSV Converter")
+root.geometry("500x500")
+
+input_file_var = tk.StringVar()
+output_file1_var = tk.StringVar()
+output_file2_var = tk.StringVar()
+
+tk.Label(root, text="Select Input Log File:").pack(pady=5)
+tk.Entry(root, textvariable=input_file_var, width=50).pack(pady=5)
+tk.Button(root, text="Browse Input", command=select_input_file).pack(pady=5)
+
+tk.Label(root, text="Select Output CSV (Sequential):").pack(pady=5)
+tk.Entry(root, textvariable=output_file1_var, width=50).pack(pady=5)
+tk.Button(root, text="Browse Sequential Output", command=select_output_file1).pack(pady=5)
+
+tk.Label(root, text="Select Output CSV (Joined):").pack(pady=5)
+tk.Entry(root, textvariable=output_file2_var, width=50).pack(pady=5)
+tk.Button(root, text="Browse Joined Output", command=select_output_file2).pack(pady=5)
+
+tk.Button(root, text="Convert to CSV", command=process_files).pack(pady=20)
+
+root.mainloop()
\ No newline at end of file