/**********************************************************/
/*  apimagic: cparser-based API normalization utility     */
/*  Copyright (C) 2015--2016  Z. Gilboa                   */
/*  Released under GPLv2 and GPLv3; see COPYING.APIMAGIC. */
/**********************************************************/
 
#include <stdio.h>
#include <unistd.h>
#include <apimagic/apimagic.h>
#include "apimagic_driver_impl.h"
 
#ifndef AMGC_DRIVER_FLAGS
#define AMGC_DRIVER_FLAGS	AMGC_DRIVER_VERBOSITY_ERRORS \
				| AMGC_DRIVER_VERBOSITY_USAGE
#endif
 
static const char vermsg[] = "%s%s%s (git://midipix.org/apimagic): "
			     "version %s%d.%d.%d%s.\n"
			     "[commit reference: %s%s%s]\n";
 
static const char * const amgc_ver_color[6] = {
		"\x1b[1m\x1b[35m","\x1b[0m",
		"\x1b[1m\x1b[32m","\x1b[0m",
		"\x1b[1m\x1b[34m","\x1b[0m"
};
 
static const char * const amgc_ver_plain[6] = {
		"","",
		"","",
		"",""
};
 
static ssize_t amgc_version(struct amgc_driver_ctx * dctx)
{
	const struct amgc_source_version * verinfo;
	const char * const * verclr;
 
	verinfo = amgc_source_version();
	verclr  = isatty(STDOUT_FILENO) ? amgc_ver_color : amgc_ver_plain;
 
	return fprintf(stdout,vermsg,
			verclr[0],dctx->program,verclr[1],
			verclr[2],verinfo->major,verinfo->minor,
			verinfo->revision,verclr[3],
			verclr[4],verinfo->commit,verclr[5]);
}
 
static void amgc_perform_unit_actions(struct amgc_unit_ctx * uctx)
{
	const struct amgc_action * action;
 
	for (action=uctx->cctx->actions; action->type; action++)
		amgc_perform_unit_action(uctx,action,0,stdout);
}
 
static int amgc_exit(struct amgc_driver_ctx * dctx, int nerrors)
{
	amgc_free_driver_ctx(dctx);
	return nerrors ? 2 : 0;
}
 
int amgc_main(int argc, char ** argv, char ** envp)
{
	int				ret;
	struct amgc_driver_ctx *	dctx;
	struct amgc_unit_ctx *		uctx;
	const char **			unit;
 
	if ((ret = amgc_get_driver_ctx(argv,envp,AMGC_DRIVER_FLAGS,&dctx)))
		return (ret == AMGC_USAGE) ? !--argc : 2;
 
	if (dctx->cctx->drvflags & AMGC_DRIVER_VERSION)
		if ((amgc_version(dctx)) < 0)
			return amgc_exit(dctx,2);
 
	for (unit=dctx->units; *unit; unit++) {
		if (!(amgc_get_unit_ctx(dctx,*unit,&uctx))) {
			amgc_perform_unit_actions(uctx);
			ret += uctx->nerrors;
			amgc_free_unit_ctx(uctx);
		} else
			ret++;
	}
 
	return amgc_exit(dctx,ret);
}