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#include <string.h>
#include <stdio.h>
#include <assert.h>
#include <stdlib.h>
#include "../block.h"
#include "../any_log.h"
typedef struct {
block_text_t block;
char *script;
} block_script_t;
static const struct timespec block_script_interval = {
.tv_sec = 30,
.tv_nsec = 0,
};
static void block_script_update(block_t *block)
{
block_script_t *script = (block_script_t *)block;
FILE *output = popen(script->script, "r");
if (output == NULL) {
log_value_debug("Failed to execute a script",
"s:label", block->label,
"s:script", script->script,
"i:errno", errno);
return;
}
char buffer[128] = { 0 };
char *s = fgets(buffer, sizeof(buffer), output);
pclose(output);
if (s == NULL) {
log_value_warn("Failed to execute a script",
"s:label", block->label,
"s:script", script->script);
return;
}
log_value_trace("Executed a script",
"s:label", block->label,
"s:script", script->script);
free(script->block.text);
script->block.text = strcopy(buffer);
assert(script->block.text != NULL);
}
static void block_script_init(block_t *block)
{
extern const block_scheme_t block_text_scheme;
block_text_scheme.init_fn(block);
block->update_interval = block_script_interval;
block->update_fn = block_script_update;
}
static void block_script_clean(block_t *block)
{
block_script_t *script = (block_script_t *)block;
free(script->script);
free(script->block.text);
}
static int block_script_validate(block_t *block, config_t *config)
{
block_script_t *script = (block_script_t *)block;
int errors = 0;
if (script->block.text == NULL) {
log_error("Block '%s' requires key '%s'", block->label, "text");
errors++;
}
script->script = script->block.text;
script->block.text = strcopy("?");
return errors;
}
static config_status_t block_script_change(block_t *block, config_t *config, const char *key, const char *value)
{
if (!strcmp(key, "text")) {
log_panic("TODO");
return CONFIG_SUCCESS;
}
extern const config_entry_t block_text_entries[];
return config_read_entry(block_text_entries, block, NULL, key, value);
}
const block_scheme_t block_script_scheme = {
.name = "script",
.entries = NULL,
.size = sizeof(block_script_t),
.init_fn = block_script_init,
.clean_fn = block_script_clean,
.validate_fn = block_script_validate,
.change_fn = block_script_change,
};
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