#define _XOPEN_SOURCE 700
#include <stdio.h>
#include <string.h>
#include <stdlib.h>

#include "maje.h"

struct majefile *insert_file(struct majefile *list, const char *path, const struct stat *st)
{
	struct majefile *tmp = malloc(sizeof(*tmp) + strlen(path) + 1);
	if (tmp == NULL) {
		return NULL;
	}

	tmp->next = NULL;
	tmp->prev = NULL;

	if (st) {
		tmp->st = *st;
	} else {
		tmp->st = (struct stat) { 0 };
	}

	strcpy(tmp->path, path);

	if (list == NULL) {
		return tmp;
	}

	tmp->next = list->next;
	tmp->prev = list;
	list->next = tmp;
	if (tmp->next != NULL) {
		tmp->next->prev = tmp;
	}
	return tmp;
}

struct majeflag *insert_flag(struct majeflag *list, char *flag)
{
	char *eq = strchr(flag, '=');
	*eq = '\0';
	eq++;

	int type = 0;
	if (!strcmp(flag, "MAJE_CFLAG")) {
		type = MAJE_CFLAG;
	} else if (!strcmp(flag, "MAJE_LDFLAG")) {
		type = MAJE_LDFLAG;
	} else if (!strcmp(flag, "MAJE_LDLIB")) {
		type = MAJE_LDLIB;
	} else {
		fprintf(stderr, "maje: unkonwn directive '%s'\n", flag);
		return list;
	}

	struct majeflag *tmp = malloc(sizeof(*tmp) + strlen(flag) + 1);
	if (tmp == NULL) {
		return NULL;
	}

	tmp->next = NULL;
	tmp->prev = NULL;

	tmp->type = type;
	strcpy(tmp->flag, eq);

	if (list == NULL) {
		return tmp;
	}

	tmp->next = list->next;
	tmp->prev = list;
	list->next = tmp;
	if (tmp->next != NULL) {
		tmp->next->prev = tmp;
	}
	return tmp;
}