coin moves: add wire handlers for chain coin moves

onchaind is the only daemon that emits coin events, and those are all
onchain (ha!), so the only 'wire' facility we need for coin moves are
for the 'chain' type.

common/coin_mvt.c

@@ -180,3 +180,61 @@ struct coin_mvt *finalize_channel_mvt(const tal_t *ctx,
 
 	return mvt;
 }
+
+void towire_chain_coin_mvt(u8 **pptr, const struct chain_coin_mvt *mvt)
+{
+	if (mvt->account_name) {
+		towire_u16(pptr, strlen(mvt->account_name));
+		towire_u8_array(pptr, (u8 *)mvt->account_name, strlen(mvt->account_name));
+	} else
+		towire_u16(pptr, 0);
+	towire_bitcoin_txid(pptr, cast_const(struct bitcoin_txid *, mvt->tx_txid));
+
+	if (mvt->output_txid) {
+		towire_bool(pptr, true);
+		towire_bitcoin_txid(pptr, cast_const(struct bitcoin_txid *, mvt->output_txid));
+	} else
+		towire_bool(pptr, false);
+	towire_u32(pptr, mvt->vout);
+	if (mvt->payment_hash) {
+		towire_bool(pptr, true);
+		towire_sha256(pptr, mvt->payment_hash);
+	} else
+		towire_bool(pptr, false);
+	towire_u8(pptr, mvt->tag);
+	towire_amount_msat(pptr, mvt->credit);
+	towire_amount_msat(pptr, mvt->debit);
+	towire_u8(pptr, mvt->unit);
+}
+
+void fromwire_chain_coin_mvt(const u8 **cursor, size_t *max, struct chain_coin_mvt *mvt)
+{
+	u16 account_name_len;
+	account_name_len = fromwire_u16(cursor, max);
+
+	if (account_name_len) {
+		mvt->account_name = tal_arr(mvt, char, account_name_len);
+		fromwire_u8_array(cursor, max, (u8 *)mvt->account_name, account_name_len);
+	} else
+		mvt->account_name = NULL;
+
+	mvt->tx_txid = tal(mvt, struct bitcoin_txid);
+	fromwire_bitcoin_txid(cursor, max,
+			      cast_const(struct bitcoin_txid *, mvt->tx_txid));
+	if (fromwire_bool(cursor, max)) {
+		mvt->output_txid = tal(mvt, struct bitcoin_txid);
+		fromwire_bitcoin_txid(cursor, max,
+				      cast_const(struct bitcoin_txid *, mvt->output_txid));
+	} else
+		mvt->output_txid = NULL;
+	mvt->vout = fromwire_u32(cursor, max);
+	if (fromwire_bool(cursor, max)) {
+		mvt->payment_hash = tal(mvt, struct sha256);
+		fromwire_sha256(cursor, max, mvt->payment_hash);
+	} else
+		mvt->payment_hash = NULL;
+	mvt->tag = fromwire_u8(cursor, max);
+	mvt->credit = fromwire_amount_msat(cursor, max);
+	mvt->debit = fromwire_amount_msat(cursor, max);
+	mvt->unit = fromwire_u8(cursor, max);
+}

common/coin_mvt.h

@@ -165,4 +165,7 @@ const char *mvt_type_str(enum mvt_type type);
 const char *mvt_tag_str(enum mvt_tag tag);
 const char *mvt_unit_str(enum mvt_unit_type unit);
 
+void towire_chain_coin_mvt(u8 **pptr, const struct chain_coin_mvt *mvt);
+void fromwire_chain_coin_mvt(const u8 **cursor, size_t *max, struct chain_coin_mvt *mvt);
+
 #endif /* LIGHTNING_COMMON_COIN_MVT_H */