Files
lightswitch/src/rpc.c
2018-01-24 14:27:58 +01:00

121 lines
3.2 KiB
C

#include "rpc.h"
#include "main.h"
#include "mqtt.h"
static void rpc_log(struct mg_rpc_request_info *ri, struct mg_str args) {
LOG(LL_INFO, ("tag=%.*s src=%.*s method=%.*s args='%.*s'",
ri->tag.len, ri->tag.p, ri->src.len, ri->src.p,
ri->method.len, ri->method.p, args.len, args.p));
// TODO(pim): log to MQTT
}
// Grab the idx from args and resolve to a GPIO, return true if found, false if not.
// If we return false, return_idx and return_gpio are not usable.
static bool rpc_args_to_idx_and_gpio(struct mg_rpc_request_info *ri, struct mg_str args, int *return_idx, uint8_t *return_gpio) {
int idx;
int gpio;
if (json_scanf(args.p, args.len, ri->args_fmt, &idx) != 1) {
mg_rpc_send_errorf(ri, 400, "idx is required");
ri = NULL;
return false;
}
if (idx<0 || idx>=channel_get_total()) {
mg_rpc_send_errorf(ri, 400, "idx must be between 0 and %d", channel_get_total()-1);
ri = NULL;
return false;
}
gpio = channel_gpio_by_idx(idx);
if (gpio == GPIO_INVALID) {
mg_rpc_send_errorf(ri, 400, "No GPIO for idx");
ri = NULL;
return false;
}
*return_gpio = gpio;
*return_idx = idx;
return true;
}
static void rpc_channel_toggle_handler(struct mg_rpc_request_info *ri, void *cb_arg, struct mg_rpc_frame_info *fi, struct mg_str args) {
uint8_t gpio;
int idx;
rpc_log(ri, args);
if (!rpc_args_to_idx_and_gpio(ri, args, &idx, &gpio))
return;
channel_handler(gpio, NULL);
mg_rpc_send_responsef(ri, "{idx: %d, relay_state: %d}", idx, channel_get(idx));
ri = NULL;
(void) ri;
(void) cb_arg;
(void) fi;
(void) args;
}
static void rpc_channel_get_handler(struct mg_rpc_request_info *ri, void *cb_arg, struct mg_rpc_frame_info *fi, struct mg_str args) {
uint8_t gpio;
int idx;
rpc_log(ri, args);
if (!rpc_args_to_idx_and_gpio(ri, args, &idx, &gpio))
return;
mg_rpc_send_responsef(ri, "{idx: %d, relay_state: %d}", idx, channel_get(idx));
ri = NULL;
(void) ri;
(void) cb_arg;
(void) fi;
(void) args;
}
static void rpc_channel_set_handler(struct mg_rpc_request_info *ri, void *cb_arg, struct mg_rpc_frame_info *fi, struct mg_str args) {
uint8_t gpio;
int idx;
int value;
rpc_log(ri, args);
if (json_scanf(args.p, args.len, ri->args_fmt, &idx, &value) != 2) {
mg_rpc_send_errorf(ri, 400, "idx and value are required");
ri = NULL;
return;
}
if (idx<0 || idx>=channel_get_total()) {
mg_rpc_send_errorf(ri, 400, "idx must be between 0 and %d", channel_get_total()-1);
ri = NULL;
return;
}
gpio = channel_gpio_by_idx(idx);
if (gpio == GPIO_INVALID) {
mg_rpc_send_errorf(ri, 400, "No GPIO for idx");
ri = NULL;
return;
}
channel_set(idx, (bool) value);
mg_rpc_send_responsef(ri, "{idx: %d, relay_state: %d}", idx, channel_get(idx));
ri = NULL;
(void) ri;
(void) cb_arg;
(void) fi;
(void) args;
}
void rpc_init() {
struct mg_rpc *c = mgos_rpc_get_global();
mg_rpc_add_handler(c, "Channel.Toggle", "{idx: %d}", rpc_channel_toggle_handler, NULL);
mg_rpc_add_handler(c, "Channel.Get", "{idx: %d}", rpc_channel_get_handler, NULL);
mg_rpc_add_handler(c, "Channel.Set", "{idx: %d, value: %d}", rpc_channel_set_handler, NULL);
}