Add summary page for batch transactions. Show total number of transac…

…tions, total amount and total fee.

app/src/apdu_sign.c

@@ -39,6 +39,7 @@
 #include "globals.h"
 #include "handle_swap.h"
 #include "keys.h"
+#include "num_parser.h"
 #include "ui_stream.h"
 
 #include "parser/parser_state.h"
@@ -95,6 +96,26 @@ tz_ui_stream_push_accept_reject(void)
 }
 #endif
 
+void tz_ui_stream_push_summary(void)
+{
+    FUNC_ENTER(("void"));
+
+    tz_parser_state *st = &global.keys.apdu.sign.u.clear.parser_state;
+    tz_operation_state *op = &global.keys.apdu.sign.u.clear.parser_state.operation;
+    char *value = st->buffers.num.decimal;
+    snprintf(value, 32, "%d", op->batch_index);
+    tz_ui_stream_push(TZ_UI_STREAM_CB_NOCB, "Number of Tx", value,
+                      TZ_UI_LAYOUT_BN, TZ_UI_ICON_NONE);
+    // get total_amount
+    tz_mutez_to_string(value, op->total_amount);
+    tz_ui_stream_push(TZ_UI_STREAM_CB_NOCB, "Total amount", value,
+                          TZ_UI_LAYOUT_BN, TZ_UI_ICON_NONE);
+
+    tz_mutez_to_string(value, op->total_fee);
+        tz_ui_stream_push(TZ_UI_STREAM_CB_NOCB, "Total fee", value,
+                                  TZ_UI_LAYOUT_BN, TZ_UI_ICON_NONE);
+}
+
 static void
 sign_packet(void)
 {
@@ -230,6 +251,7 @@ static void
 refill_blo_done(void)
 {
     tz_parser_state *st = &global.keys.apdu.sign.u.clear.parser_state;
+    tz_operation_state *op = &global.keys.apdu.sign.u.clear.parser_state.operation;
     TZ_PREAMBLE(("void"));
 
     TZ_ASSERT(
@@ -247,7 +269,9 @@ refill_blo_done(void)
         TZ_CHECK(sign_packet());
         TZ_SUCCEED();
     }
-
+    if(op->batch_index > 1) {
+        tz_ui_stream_push_summary();
+    }
 #ifdef HAVE_BAGL
     tz_ui_stream_push_accept_reject();
 #endif

app/src/parser/num_parser.c

@@ -97,3 +97,62 @@ tz_string_to_mutez(const char *str, uint64_t *res)
 
     return true;
 }
+
+
+bool tz_mutez_to_string(char *str, uint64_t microtez) {
+    if (str == NULL) {
+        return false;
+    }
+
+    uint64_t integer_part = microtez / 1000000;
+    uint64_t decimal_part = microtez % 1000000;
+
+    // Convert integer part to string
+    size_t i = 0;
+    if (integer_part == 0) {
+        str[i++] = '0';
+    } else {
+        uint64_t temp = integer_part;
+        size_t int_len = 0;
+        while (temp > 0) {
+            temp /= 10;
+            int_len++;
+        }
+        for (size_t j = int_len; j > 0; j--) {
+            str[i + j - 1] = '0' + (integer_part % 10);
+            integer_part /= 10;
+        }
+        i += int_len;
+    }
+
+    // Add decimal point
+    str[i++] = '.';
+
+    // Convert decimal part to string
+    size_t decimal_start = i;
+    for (size_t j = 0; j < 6; j++) {
+        str[i++] = '0' + (decimal_part / 100000);
+        decimal_part = (decimal_part % 100000) * 10;
+    }
+
+    // Remove trailing zeros from the decimal part
+    while (i > decimal_start && str[i - 1] == '0') {
+        i--;
+    }
+
+    // Remove decimal point if no decimal part
+    if (i > decimal_start && str[i - 1] == '.') {
+        i--;
+    }
+
+    // Append " XTZ"
+    const char *xtz = " XTZ";
+    for (size_t j = 0; xtz[j] != '\0'; j++) {
+        str[i++] = xtz[j];
+    }
+
+    // Null-terminate the string
+    str[i] = '\0';
+
+    return true;
+}

app/src/parser/num_parser.h

@@ -71,3 +71,12 @@ tz_parser_result tz_parse_nat_step(tz_num_parser_buffer *buffers,
  * @return bool: success
  */
 bool tz_string_to_mutez(const char *in, uint64_t *out);
+
+/**
+ * @brief format a mutez number to a string
+ *
+ * @param str: output string buffer
+ * @param microtez: input number
+ * @return bool: success
+ */
+bool tz_mutez_to_string( char *str, uint64_t microtez);