file list: implementation of paging

src/client.c

@@ -18,7 +18,8 @@ void process_client_command(char *line, session *sess, server_data_t *s_d) {
   if (!strcmp(arg_1, "file")) {
     /* LIST */
     if (!strcmp(arg_2, "list")) {
-      file_list(sess, s_d);
+      file_list(sess, s_d, 1);
+      sess->state = OP_FILE_LIST;
       return;
     }
 

src/file_p.c

@@ -39,12 +39,21 @@ void clear_list(fl_t *start) {
   }
 }
 
-void file_list(session *sess, server_data_t *s_d) {
+uint32_t navigate_list(session *sess, char *line, server_data_t *s_d) {
+  uint64_t num;
+
+  if (sscanf(line, "p %lu", &num)) {
+    file_list(sess, s_d, num);
+    return  1;
+  }
+  return 0;
+}
+
+void file_list(session *sess, server_data_t *s_d, uint64_t page) {
   char list_end[] = "list_end\n";
   fl_t *fl_start, *fl_current;
   char item_h[256];
   i_get_files_db args;
-  uint64_t page = 1;
   uint64_t full_count, count, pages_count;
 
   fl_start = NULL;
@@ -67,9 +76,10 @@ void file_list(session *sess, server_data_t *s_d) {
   pages_count = full_count / 15;
   if (!pages_count)
     pages_count = 1;
+  if (pages_count % 15) pages_count ++;
 
-  sprintf(page_info, "PAGE %lu FROM %lu. COUNT: %lu FROM %lu\n", page,
-          pages_count, count, full_count);
+  sprintf(page_info, "=== PAGE %lu/%lu COUNT: %lu/%lu ===\n", page,
+          pages_count, count, full_count - (page-1)*15);
 
   if (!fl_start)
     return;

src/file_p.h

@@ -1,9 +1,9 @@
 #ifndef FILEP_H
 #define FILEP_H
 #include "main.h"
-void get_files_data(server_data_t *, uint32_t page);
 void clear_list(fl_t *start);
-void file_list(session *, server_data_t *);
+uint32_t navigate_list(session *sess, char *line, server_data_t *s_d) ;
+void file_list(session *, server_data_t *, uint64_t page);
 int file_send_prepare(session *, char *, server_data_t *);
 enum f_actions {
     F_UPLOAD,

src/main.h

@@ -17,6 +17,7 @@ enum sess_states {
   OP_EDIT_FILE,
   OP_DOWNLOAD,
   OP_EDIT_USER,
+  OP_FILE_LIST,
   OP_LOGIN_USR,
   OP_LOGIN_PSS,
   OP_LOGIN_ANON,

src/session.c

@@ -157,6 +157,11 @@ void perform_session_action(session *sess, char *line, server_data_t *s_d) {
       }
     }
     break;
+  case OP_FILE_LIST:
+    if (!navigate_list(sess, line, s_d)) {
+      process_client_command(line, sess, s_d);
+    }
+    break;
   }
   /* } */
 }