Claude opus authored everything to make the user and task work. First iteration

Provider/main/api/users/add.cpp

@@ -0,0 +1,67 @@
+// POST /api/users — Create a new user
+// Body: {"name": "Alice"}
+
+#include "cJSON.h"
+#include "esp_http_server.h"
+
+#include "types.hpp"
+#include "user.hpp"
+
+
+internal esp_err_t api_users_post_handler(httpd_req_t *req)
+{
+  httpd_resp_set_type(req, "application/json");
+  httpd_resp_set_hdr(req, "Access-Control-Allow-Origin", "*");
+
+  char buf[128];
+  int received = httpd_req_recv(req, buf, sizeof(buf) - 1);
+  if (received <= 0)
+  {
+    httpd_resp_send_err(req, HTTPD_400_BAD_REQUEST, "Empty body");
+    return ESP_FAIL;
+  }
+  buf[received] = '\0';
+
+  cJSON *body = cJSON_Parse(buf);
+  if (!body)
+  {
+    httpd_resp_send_err(req, HTTPD_400_BAD_REQUEST, "Invalid JSON");
+    return ESP_FAIL;
+  }
+
+  cJSON *name_item = cJSON_GetObjectItem(body, "name");
+  if (!cJSON_IsString(name_item) || strlen(name_item->valuestring) == 0)
+  {
+    cJSON_Delete(body);
+    httpd_resp_send_err(req, HTTPD_400_BAD_REQUEST, "Missing 'name'");
+    return ESP_FAIL;
+  }
+
+  user_t *user = add_user(name_item->valuestring);
+  cJSON_Delete(body);
+
+  if (!user)
+  {
+    httpd_resp_send_err(req, HTTPD_500_INTERNAL_SERVER_ERROR,
+                        "User limit reached");
+    return ESP_FAIL;
+  }
+
+  cJSON *resp = cJSON_CreateObject();
+  cJSON_AddNumberToObject(resp, "id", user->id);
+  cJSON_AddStringToObject(resp, "name", user->name);
+
+  const char *json = cJSON_PrintUnformatted(resp);
+  httpd_resp_sendstr(req, json);
+
+  free((void *)json);
+  cJSON_Delete(resp);
+
+  return ESP_OK;
+}
+
+internal const httpd_uri_t api_users_post_uri = {.uri = "/api/users",
+                                                 .method = HTTP_POST,
+                                                 .handler =
+                                                     api_users_post_handler,
+                                                 .user_ctx = NULL};

Provider/main/api/users/list.cpp

@@ -0,0 +1,41 @@
+// GET /api/users — List all active users
+
+#include "cJSON.h"
+#include "esp_http_server.h"
+
+#include "types.hpp"
+#include "user.hpp"
+
+
+internal esp_err_t api_users_get_handler(httpd_req_t *req)
+{
+  httpd_resp_set_type(req, "application/json");
+  httpd_resp_set_hdr(req, "Access-Control-Allow-Origin", "*");
+
+  cJSON *arr = cJSON_CreateArray();
+
+  for (int i = 0; i < MAX_USERS; i++)
+  {
+    if (g_Users[i].active)
+    {
+      cJSON *obj = cJSON_CreateObject();
+      cJSON_AddNumberToObject(obj, "id", g_Users[i].id);
+      cJSON_AddStringToObject(obj, "name", g_Users[i].name);
+      cJSON_AddItemToArray(arr, obj);
+    }
+  }
+
+  const char *json = cJSON_PrintUnformatted(arr);
+  httpd_resp_sendstr(req, json);
+
+  free((void *)json);
+  cJSON_Delete(arr);
+
+  return ESP_OK;
+}
+
+internal const httpd_uri_t api_users_get_uri = {.uri = "/api/users",
+                                                .method = HTTP_GET,
+                                                .handler =
+                                                    api_users_get_handler,
+                                                .user_ctx = NULL};

Provider/main/api/users/remove.cpp

@@ -0,0 +1,47 @@
+// DELETE /api/users?id=N — Delete a user and cascade-delete their tasks
+
+#include "esp_http_server.h"
+
+#include "api/tasks/store.hpp"
+#include "api/users/store.hpp"
+#include "types.hpp"
+
+internal esp_err_t api_users_delete_handler(httpd_req_t *req)
+{
+  httpd_resp_set_type(req, "application/json");
+  httpd_resp_set_hdr(req, "Access-Control-Allow-Origin", "*");
+
+  char query[32] = {};
+  if (httpd_req_get_url_query_str(req, query, sizeof(query)) != ESP_OK)
+  {
+    httpd_resp_send_err(req, HTTPD_400_BAD_REQUEST, "Missing query param 'id'");
+    return ESP_FAIL;
+  }
+
+  char id_str[8] = {};
+  if (httpd_query_key_value(query, "id", id_str, sizeof(id_str)) != ESP_OK)
+  {
+    httpd_resp_send_err(req, HTTPD_400_BAD_REQUEST, "Missing query param 'id'");
+    return ESP_FAIL;
+  }
+
+  uint8 id = (uint8)atoi(id_str);
+
+  // Cascade: remove all tasks belonging to this user
+  remove_tasks_for_user(id);
+
+  if (!remove_user(id))
+  {
+    httpd_resp_send_err(req, HTTPD_404_NOT_FOUND, "User not found");
+    return ESP_FAIL;
+  }
+
+  httpd_resp_sendstr(req, "{\"status\":\"ok\"}");
+  return ESP_OK;
+}
+
+internal const httpd_uri_t api_users_delete_uri = {.uri = "/api/users",
+                                                   .method = HTTP_DELETE,
+                                                   .handler =
+                                                       api_users_delete_handler,
+                                                   .user_ctx = NULL};

Provider/main/api/users/store.cpp

@@ -0,0 +1,56 @@
+// User data store: CRUD helpers and seed data
+
+#include "api/users/store.hpp"
+
+// Find a user by ID, returns nullptr if not found
+internal user_t *find_user(uint8 id)
+{
+  for (int i = 0; i < MAX_USERS; i++)
+  {
+    if (g_Users[i].active && g_Users[i].id == id)
+    {
+      return &g_Users[i];
+    }
+  }
+  return nullptr;
+}
+
+// Add a user, returns pointer to new user or nullptr if full
+internal user_t *add_user(const char *name)
+{
+  for (int i = 0; i < MAX_USERS; i++)
+  {
+    if (!g_Users[i].active)
+    {
+      g_Users[i].id = g_NextUserId++;
+      strlcpy(g_Users[i].name, name, sizeof(g_Users[i].name));
+      g_Users[i].active = true;
+      return &g_Users[i];
+    }
+  }
+  return nullptr;
+}
+
+// Remove a user by ID, returns true if found and removed
+internal bool remove_user(uint8 id)
+{
+  for (int i = 0; i < MAX_USERS; i++)
+  {
+    if (g_Users[i].active && g_Users[i].id == id)
+    {
+      g_Users[i].active = false;
+      g_Users[i].id = 0;
+      g_Users[i].name[0] = '\0';
+      return true;
+    }
+  }
+  return false;
+}
+
+// Populate dummy users on boot for development iteration
+internal void seed_users()
+{
+  add_user("Alice");
+  add_user("Bob");
+  add_user("Charlie");
+}

Provider/main/api/users/store.hpp

@@ -0,0 +1,11 @@
+#pragma once
+
+#include "types.hpp"
+#include "user.hpp"
+
+
+// Data store operations for users
+internal user_t *find_user(uint8 id);
+internal user_t *add_user(const char *name);
+internal bool remove_user(uint8 id);
+internal void seed_users();

Provider/main/api/users/unity.cpp

@@ -0,0 +1,6 @@
+// clang-format off
+#include "api/users/store.cpp"
+#include "api/users/list.cpp"
+#include "api/users/add.cpp"
+#include "api/users/remove.cpp"
+// clang-format on