#include <tools/ccanlint/ccanlint.h>
#include <tools/tools.h>
#include <ccan/talloc/talloc.h>
#include <ccan/str/str.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include <limits.h>
#include <errno.h>
#include <stdlib.h>
#include <stdio.h>
#include <err.h>
#include <string.h>
#include <ctype.h>

static const char *can_build(struct manifest *m)
{
	if (safe_mode)
		return "Safe mode enabled";
	return NULL;
}

/* FIXME: recursive ccanlint if they ask for it. */
static bool expect_obj_file(const char *dir)
{
	struct manifest *dep_man;
	bool has_c_files;

	dep_man = get_manifest(dir, dir);

	/* If it has C files, we expect an object file built from them. */
	has_c_files = !list_empty(&dep_man->c_files);
	talloc_free(dep_man);
	return has_c_files;
}

static void check_depends_built(struct manifest *m,
				bool keep,
				unsigned int *timeleft, struct score *score)
{
	struct ccan_file *i;
	struct stat st;

	list_for_each(&m->dep_dirs, i, list) {
		if (!expect_obj_file(i->fullname))
			continue;

		i->compiled = talloc_asprintf(i, "%s.o", i->fullname);
		if (stat(i->compiled, &st) != 0) {
			score->error = "Dependencies are not built";
			score_file_error(score, i, 0,
					 talloc_asprintf(score,
							"object file %s",
							 i->compiled));
			i->compiled = NULL;
		}			
	}

	/* We may need libtap for testing, unless we're "tap" */
	if (!streq(m->basename, "tap")
	    && (!list_empty(&m->run_tests) || !list_empty(&m->api_tests))) {
		char *tapobj = talloc_asprintf(m, "%s/ccan/tap.o", ccan_dir);
		if (stat(tapobj, &st) != 0) {
			score->error = talloc_asprintf(score,
					       "tap object file not built");
		}
	}

	if (!score->error) {
		score->pass = true;
		score->score = score->total;
	}
}

struct ccanlint depends_built = {
	.key = "depends-built",
	.name = "Module's CCAN dependencies are already built",
	.check = check_depends_built,
	.can_run = can_build,
};

REGISTER_TEST(depends_built, &depends_exist, NULL);