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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 };
fgets(buffer, sizeof(buffer), output);
pclose(output);
log_value_debug("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 block_t *block_script_alloc(const block_scheme_t *scheme)
{
block_t *block = calloc(1, sizeof(block_script_t));
block->type = BLOCK_TEXT;
block->update_interval = block_script_interval;
block->update_fn = block_script_update;
return block;
}
static void block_script_clean(block_t *block)
{
block_script_t *script = (block_script_t *)block;
free(script->script);
free(script->block.text);
}
static bool block_script_validate(block_t *block, const block_scheme_t *scheme)
{
block_script_t *script = (block_script_t *)block;
if (script->block.text == NULL) {
log_error("Block '%s' requires key '%s'", block->label, "text");
return false;
}
script->script = script->block.text;
script->block.text = NULL;
return true;
}
static const config_entry_t block_script_entries[] = {
{ 0 },
};
const block_scheme_t block_script_scheme = {
.name = "script",
.entries = block_script_entries,
.alloc_fn = block_script_alloc,
.clean_fn = block_script_clean,
.validate_fn = block_script_validate,
.resolve_fn = NULL,
};
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