/**
Interactive Clean

C functions to compile and run a Clean module

The MIT License (MIT)

Copyright (c) 2015 Camil Staps <info@camilstaps.nl>

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
 */
#include <stdlib.h>
#include <stdio.h>
#include <inttypes.h>
#include <string.h>
#include "Clean.h"

char* cleanstoc(CleanString s) {
	char* cs = calloc(sizeof(char), CleanStringLength(s) + 1);
	if (cs == NULL)
		return NULL;

	int i;
	for (i = 0; i < CleanStringLength(s); i++)
		cs[i] = CleanStringCharacters(s)[i];
	cs[i] = '\0';

	return cs;
}

/**
 * Compile a Clean module in a path
 *
 * This may fail (hard) when out of memory
 * clm should be in $PATH
 *
 * @param CleanString path the path
 * @param CleanString module the module
 *
 * @return int the result of clm
 */
int64_t compile(CleanString path, CleanString module) {
	char* pathchars, * modulechars;

	pathchars = cleanstoc(path);
	modulechars = cleanstoc(module);

	if (modulechars == NULL || pathchars == NULL) {
		printf("Couldn't allocate memory\n");
		exit(-1);
	}

	// Build command:
	char cmd[512];
	snprintf(cmd, 511, "cd \"%s\" && clm -ms -nw "
			"-I $CLEAN_HOME/lib/Directory "
			"-I $CLEAN_HOME/lib/Dynamics -dynamics "
			"-I $CLEAN_HOME/lib/Gast "
			"-I $CLEAN_HOME/lib/GraphCopy "
			"-I $CLEAN_HOME/lib/Platform "
			"-I $CLEAN_HOME/lib/Platform/Deprecated/ArgEnv "
			"-I $CLEAN_HOME/lib/Platform/Deprecated/MersenneTwister "
			"-I $CLEAN_HOME/lib/Platform/Deprecated/StdLib "
			"-I $CLEAN_HOME/lib/Platform/Deprecated/Generics "
			"-I $CLEAN_HOME/lib/Local "
			"-b -nt -h 20M %s -o %s",
			pathchars, modulechars, modulechars);

	free(pathchars);
	free(modulechars);

	// Call clm
	return system(cmd);
}

/**
 * Run an executable
 *
 * This may fail when out of memory, or when the executable fails
 * The file should be executable by the user
 *
 * @param CleanString executable the path to the executable
 *
 * @return void
 */
int64_t run(CleanString executable) {
	char* execchars;
	int execlength;

	// Copy CleanString to char[]
	execlength = CleanStringLength(executable);

	execchars = calloc(1, execlength + 1);
	if (execchars == NULL) {
		printf("Couldn't allocate memory\n");
		exit(-1);
	}

	int i;
	for (i=0;i<execlength;i++)
		execchars[i] = CleanStringCharacters(executable)[i];
	execchars[i] = 0x00;

	// Run command:
	int r;
	r = system(execchars);
	free(execchars);
	return r;
}