#include "mshInterpolate.h"

void disp_help()
{
	cout << "mshInterpolate - v0.1 msh file interpolation" << endl
		<< "Author: zhangyi.cugwuhan@gmail.com" << endl << endl
		<< "usage: mshInterpolate -i<input-msh> -d<data-name> -l<list-file> [-t<type>] [-s<refr>/<refR>] [-h] > out-file" << endl
		<< "-i\tinput Gmsh file." << endl
		<< "-d\tnode data name for interpolation." << endl
		<< "-l\tlist table generated by the stt program" << endl
		<< "-s\treference system, this must be set for topography interpolation" << endl
		<< "-t\tinterpolation type, 'linear' for linear interpolation (default) and 'topo' for topography" << endl
		<< "-h\tshow this info" << endl;
}

int main(int argc, char** argv)
{
	char infilename[1024] = "NULL";
	char nodename[1024] = "NULL";
	char listname[1024] = "NULL";
	char referSystem[1024] = "NULL";
	char calType[1024] = "linear";

	opterr = 0; //内置参数 若不为0则会在发生遭遇错误时输出一条信息到屏幕

	int curr;
	/*循环拾取参数 最后一个参数为-1 需要变量的参数后跟一个冒号 可有可无参数跟两个冒号*/
	while((curr = getopt(argc,argv,"hi:d:l:s:t:")) != -1)
	{
		/*匹配命令*/
		switch (curr)
		{
			case 'h': //显示帮助信息
				disp_help();
				break;
			case 'i':
				if (1!=sscanf(optarg,"%[^\0]",infilename))
				{
					cout << "error ==> wrong format of " << optarg << endl;
				}
				break;
			case 'd':
				if (1!=sscanf(optarg,"%[^\0]",nodename))
				{
					cout << "error ==> wrong format of " << optarg << endl;
				}
				break;
			case 'l':
				if (1!=sscanf(optarg,"%[^\0]",listname))
				{
					cout << "error ==> wrong format of " << optarg << endl;
				}
				break;
			case 's':
				if (1!=sscanf(optarg,"%[^\0]",referSystem))
				{
					cout << "error ==> wrong format of " << optarg << endl;
				}
				break;
			case 't':
				if (1!=sscanf(optarg,"%[^\0]",calType))
				{
					cout << "error ==> wrong format of " << optarg << endl;
				}
				break;
			case '?': //处理未定义或错误参数
				if (optopt == 'i' || optopt == 'd' || optopt == 'l' || optopt == 's' || optopt == 't')
				{
					fprintf (stderr, "Option -%c requires an argument.\n", optopt);
					return -1;
				}
				else if (isprint(optopt))
				{
					fprintf (stderr, "Unknown option `-%c'.\n", optopt);
					return -1;
				}
				else
				{
					fprintf (stderr,"Unknown option character `\\x%x'.\n",optopt);
					return -1;
				}
				break;
			default:
				abort();
		}
	}

	mshInterpolate mi;
	if (mi.readMsh(infilename,nodename)) return -1;
	if (mi.readList(listname)) return -1;
	if (!strcmp(calType,"linear"))
		mi.interpolate_linear();
	else if (!strcmp(calType,"topo"))
	{
		if (mi.initRef(referSystem)) return -1;
		mi.interpolate_topo();
	}
	else
	{
		cout << "error ==> wrong interpolation type: " << calType << endl;
	}
	mi.outList();
	return 0;
}