From e97e1060011707bf4e2ba4addbe9002bb13abf1e Mon Sep 17 00:00:00 2001
From: Zvonimir Rudinski <zvonki12@gmail.com>
Date: Mon, 22 Dec 2025 04:03:26 +0100
Subject: [PATCH] add csv export

---
 engine/todo.c | 17 +++++++++++++++++
 engine/todo.h |  3 +++
 main.c        | 15 ++++++++++++++-
 3 files changed, 34 insertions(+), 1 deletion(-)

diff --git a/engine/todo.c b/engine/todo.c
index 3c60c66..a69ff94 100644
--- a/engine/todo.c
+++ b/engine/todo.c
@@ -55,3 +55,20 @@ char *todo_item_serialize(TodoItem *item, int *buffer_size_out) {
 
   return buffer;
 }
+
+// Exports
+void todo_export_as_csv(TodoItem *items, int item_count, const char *filename) {
+  FILE *file = fopen(filename, "w");
+  if (file == NULL) {
+    perror("Failed to open file for writing");
+    return;
+  }
+
+  // Write CSV header
+  fprintf(file, "Title,Completed\n");
+  for (int i = 0; i < item_count; i++) {
+    fprintf(file, "\"%s\",%s\n", items[i].title,
+            items[i].completed ? "Yes" : "No");
+  }
+  fclose(file);
+}
diff --git a/engine/todo.h b/engine/todo.h
index 82419c6..84e98d5 100644
--- a/engine/todo.h
+++ b/engine/todo.h
@@ -20,4 +20,7 @@ void todo_print_item(TodoItem *item);
 
 // Serialization
 char *todo_item_serialize(TodoItem *item, int *buffer_size_out);
+
+// Exports
+void todo_export_as_csv(TodoItem *items, int item_count, const char *filename);
 #endif
diff --git a/main.c b/main.c
index c2ce0b7..378b691 100644
--- a/main.c
+++ b/main.c
@@ -17,7 +17,7 @@
 #define COMPLETED_PAIR 3
 
 #include "3rd-party/stb-ds.h"
-#define KEY_BINDINGS " [a]dd [v]view [m]ark [d]elete [w]rite [l]oad [q]uit"
+#define KEY_BINDINGS " [a]dd [v]view [m]ark [d]elete [e]xport csv [w]rite [l]oad [q]uit"
 
 bool dirty = false;
 char SAVE_FILE[MAX_PATH_LENGTH] = "";
@@ -32,6 +32,7 @@ enum Command {
 
   WRITE_TO_FILE = 'w',
   LOAD_FROM_FILE = 'l',
+  EXPORT_AS_CSV = 'e',
 
   UP = 'k',
   DOWN = 'j',
@@ -346,6 +347,14 @@ void load_from_file_handler(void) {
   dirty = false;
 }
 
+void export_as_csv_handler(void) {
+  // create the csv file path
+  char csv_file_path[MAX_PATH_LENGTH + 5]; // +5 for .csv extension
+  snprintf(csv_file_path, sizeof(csv_file_path), "%s.csv", SAVE_FILE);
+
+  todo_export_as_csv(todos, arrlen(todos), csv_file_path);
+}
+
 int main(int argc, char **argv) {
   int terminal_width = 0;
   int terminal_height = 0;
@@ -390,6 +399,10 @@ int main(int argc, char **argv) {
         write_to_file_handler();
         alert("Saved!", terminal_width, terminal_height);
         break;
+      case EXPORT_AS_CSV:
+        export_as_csv_handler();
+        alert("Exported as CSV!", terminal_width, terminal_height);
+        break;
       case ADD:
         add_command_handler(terminal_width, terminal_height);
         break;