From a5187b5cbc1001da06177cde832102c01a827fad Mon Sep 17 00:00:00 2001
From: neithanmo <neithanmo@gmail.com>
Date: Mon, 9 Dec 2024 16:38:29 +0100
Subject: [PATCH] Implement correctly the spend plan ui

---
 app/src/constants.h       |  6 ++++-
 app/src/plan/spend_plan.c | 54 +++++++++++++++++++++++++++++----------
 app/src/plan/spend_plan.h |  2 ++
 3 files changed, 48 insertions(+), 14 deletions(-)

diff --git a/app/src/constants.h b/app/src/constants.h
index 6f4f75d..7ec5d33 100644
--- a/app/src/constants.h
+++ b/app/src/constants.h
@@ -75,4 +75,8 @@
 
 // Constant to use to allocate a buffer on the stack to hold the formatting of an output action
 #define OUTPUT_DISPLAY_MAX_LEN \
-    (VALUE_DISPLAY_MAX_LEN + SHORT_ADDRESS_VISIBLE_CHARS + sizeof(ELLIPSIS) + sizeof(ADDR_BECH32_PREFIX) + 6)  // = 202
\ No newline at end of file
+    (VALUE_DISPLAY_MAX_LEN + SHORT_ADDRESS_VISIBLE_CHARS + sizeof(ELLIPSIS) + sizeof(ADDR_BECH32_PREFIX) + 6)  // = 202
+
+// Constant to use to allocate a buffer on the stack to hold the formatting of an spend action
+#define SPEND_DISPLAY_MAX_LEN \
+    (VALUE_DISPLAY_MAX_LEN + SHORT_ADDRESS_VISIBLE_CHARS + sizeof(ELLIPSIS) + sizeof(ADDR_BECH32_PREFIX) + 10)  // = 202
diff --git a/app/src/plan/spend_plan.c b/app/src/plan/spend_plan.c
index b593cee..4199ef2 100644
--- a/app/src/plan/spend_plan.c
+++ b/app/src/plan/spend_plan.c
@@ -23,6 +23,7 @@
 #include "zxformat.h"
 #include "known_assets.h"
 #include "note.h"
+#include "ui_utils.h"
 
 parser_error_t decode_spend_plan(const bytes_t *data, spend_plan_t *output) {
     penumbra_core_component_shielded_pool_v1_SpendPlan spend_plan =
@@ -62,12 +63,43 @@ parser_error_t decode_spend_plan(const bytes_t *data, spend_plan_t *output) {
     return parser_ok;
 }
 
+
+parser_error_t spend_printValue(const parser_context_t *ctx, const spend_plan_t *spend, char *outVal, uint16_t outValLen) {
+    if (ctx == NULL || spend == NULL || outVal == NULL) {
+        return parser_no_data;
+    }
+
+    if (outValLen < SPEND_DISPLAY_MAX_LEN) {
+        return parser_unexpected_buffer_end;
+    }
+
+    MEMZERO(outVal, outValLen);
+
+    // example: Spend 100 USDC to penumbra1k0zzug62gpz60sejdvu9q7mq…
+
+    // add action title
+    uint16_t written_local = snprintf(outVal, outValLen, "Spend ");
+
+    // add value
+    CHECK_ERROR(printValue(ctx, &spend->note.value, &ctx->tx_obj->parameters_plan.chain_id, outVal + written_local, outValLen - written_local));
+    uint16_t written_value = strlen(outVal);
+
+    // add "from"
+    written_local = snprintf(outVal + written_value, outValLen - written_value, " from ");
+
+    // add address
+    CHECK_ERROR(printTxAddress(&spend->note.address.inner, outVal + written_local + written_value, outValLen - written_local - written_value));
+
+    return parser_ok;
+}
+
 parser_error_t spend_getNumItems(const parser_context_t *ctx, uint8_t *num_items) {
     UNUSED(ctx);
     // from spends we display only two items:
     // - Spend 100 USDC
     // - From Main Account
-    *num_items = 2;
+    // all concatenated in a single string
+    *num_items = 1;
     return parser_ok;
 }
 
@@ -82,18 +114,14 @@ parser_error_t spend_getItem(const parser_context_t *ctx, const spend_plan_t *sp
     }
 
 
-    switch ( displayIdx ) {
-        case 0:
-            snprintf(outKey, outKeyLen, "Spend");
-            return printValue(ctx, &spend->note.value, &spend->note.value.asset_id.inner, outVal, outValLen);
-            break;
-        case 1:
-            snprintf(outKey, outKeyLen, "From");
-            snprintf(outVal, outValLen, "Main Account");
-            break;
-        default:
-            return parser_no_data;
+    char bufferUI[OUTPUT_DISPLAY_MAX_LEN] = {0};
+    if (displayIdx == 0) {
+        snprintf(outKey, outKeyLen, "Action");
+        CHECK_ERROR(spend_printValue(ctx, spend, bufferUI, sizeof(bufferUI)));
+        pageString(outVal, outValLen, bufferUI, pageIdx, pageCount);
+
+        return parser_ok;
     }
-    return parser_ok;
 
+    return parser_no_data;
 }
diff --git a/app/src/plan/spend_plan.h b/app/src/plan/spend_plan.h
index 182c7dc..a372a0b 100644
--- a/app/src/plan/spend_plan.h
+++ b/app/src/plan/spend_plan.h
@@ -32,6 +32,8 @@ extern "C" {
 
 parser_error_t decode_spend_plan(const bytes_t *input, spend_plan_t *spend_plan);
 
+parser_error_t spend_printValue(const parser_context_t *ctx, const spend_plan_t *spend, char *outVal, uint16_t outValLen);
+
 parser_error_t spend_getNumItems(const parser_context_t *ctx, uint8_t *num_items);
 
 parser_error_t spend_getItem(const parser_context_t *ctx, const spend_plan_t *spend, const address_index_t *addr_index, uint8_t displayIdx, char *outKey, uint16_t outKeyLen,