json: reverse parse a coin_mvt tag back into an enum

common/coin_mvt.h

@@ -14,6 +14,7 @@ enum mvt_type {
 	CHANNEL_MVT = 1,
 };
 
+#define NUM_MVT_TAGS (LEASED + 1)
 enum mvt_tag {
 	DEPOSIT = 0,
 	WITHDRAWAL = 1,

common/json_helpers.c

@@ -108,6 +108,22 @@ bool json_to_channel_id(const char *buffer, const jsmntok_t *tok,
 			  cid, sizeof(*cid));
 }
 
+
+bool json_to_coin_mvt_tag(const char *buffer, const jsmntok_t *tok,
+			  enum mvt_tag *tag)
+{
+	enum mvt_tag i_tag;
+	for (size_t i = 0; i < NUM_MVT_TAGS; i++) {
+		i_tag = (enum mvt_tag) i;
+		if (json_tok_streq(buffer, tok, mvt_tag_str(i_tag))) {
+			*tag = i_tag;
+			return true;
+		}
+	}
+
+	return false;
+}
+
 bool split_tok(const char *buffer, const jsmntok_t *tok,
 				char split,
 				jsmntok_t *a,

common/json_helpers.h

@@ -3,6 +3,7 @@
 #define LIGHTNING_COMMON_JSON_HELPERS_H
 #include "config.h"
 #include <bitcoin/tx.h>
+#include <common/coin_mvt.h>
 #include <common/json.h>
 #include <wire/wire.h>
 
@@ -73,6 +74,10 @@ bool json_to_outpoint(const char *buffer, const jsmntok_t *tok,
 bool json_to_channel_id(const char *buffer, const jsmntok_t *tok,
 			struct channel_id *cid);
 
+/* Extract a coin movement 'tag' from this */
+bool json_to_coin_mvt_tag(const char *buffer, const jsmntok_t *tok,
+			  enum mvt_tag *tag);
+
 /* Split a json token into 2 tokens given a splitting character */
 bool split_tok(const char *buffer, const jsmntok_t *tok,
 				char split,

common/test/Makefile

@@ -21,8 +21,8 @@ ALL_TEST_PROGRAMS += $(COMMON_TEST_PROGRAMS)
 # Sphinx test wants to decode TLVs.
 common/test/run-sphinx: wire/onion$(EXP)_wiregen.o wire/towire.o wire/fromwire.o
 common/test/run-blindedpath_enctlv common/test/run-blindedpath_onion: common/base32.o common/wireaddr.o wire/onion$(EXP)_wiregen.o wire/peer$(EXP)_wiregen.o wire/towire.o wire/fromwire.o wire/tlvstream.o
-common/test/run-route_blinding_test: wire/onion$(EXP)_wiregen.o wire/peer$(EXP)_wiregen.o wire/towire.o wire/fromwire.o wire/tlvstream.o common/json.o common/json_helpers.o
-common/test/run-route_blinding_override_test: common/base32.o common/wireaddr.o wire/onion$(EXP)_wiregen.o wire/peer$(EXP)_wiregen.o wire/towire.o wire/fromwire.o wire/tlvstream.o common/json.o common/json_helpers.o
+common/test/run-route_blinding_test: wire/onion$(EXP)_wiregen.o wire/peer$(EXP)_wiregen.o wire/towire.o wire/fromwire.o wire/tlvstream.o common/json.o common/json_helpers.o common/coin_mvt.o
+common/test/run-route_blinding_override_test: common/base32.o common/wireaddr.o wire/onion$(EXP)_wiregen.o wire/peer$(EXP)_wiregen.o wire/towire.o wire/fromwire.o wire/tlvstream.o common/json.o common/json_helpers.o common/coin_mvt.o
 
 common/test/run-param					\
 common/test/run-json:					\
@@ -30,6 +30,7 @@ common/test/run-json:					\
 	common/base32.o					\
 	common/bigsize.o				\
 	common/channel_id.o				\
+	common/coin_mvt.o				\
 	common/json.o					\
 	common/json_stream.o				\
 	common/lease_rates.o				\

devtools/Makefile

@@ -14,6 +14,7 @@ ALL_PROGRAMS += $(DEVTOOLS)
 DEVTOOLS_COMMON_OBJS :=				\
 	common/amount.o				\
 	common/autodata.o			\
+	common/coin_mvt.o			\
 	common/base32.o				\
 	common/bech32.o				\
 	common/bech32_util.o			\

gossipd/test/Makefile

@@ -9,6 +9,7 @@ GOSSIPD_TEST_PROGRAMS := $(GOSSIPD_TEST_OBJS:.o=)
 GOSSIPD_TEST_COMMON_OBJS :=			\
 	common/amount.o				\
 	common/autodata.o			\
+	common/coin_mvt.o			\
 	common/bigsize.o			\
 	common/blindedpath.o			\
 	common/channel_id.o			\

plugins/Makefile

@@ -108,6 +108,7 @@ PLUGIN_COMMON_OBJS :=				\
 	bitcoin/varint.o			\
 	common/amount.o				\
 	common/autodata.o			\
+	common/coin_mvt.o			\
 	common/base32.o				\
 	common/bech32.o				\
 	common/bech32_util.o			\