/* -------------------------------------------------------------------------- */
/* 仅支持{ Ver 3.04 }版本RENIX观测值文件与广播星历文件读取                    
/* -------------------------------------------------------------------------- */
#include<stdio.h>
#include<stdlib.h>
#include<string.h>

#include"read.h"
#include"cal_mod.h"

int main(void)
{
	//数据读取
	FILE * fp_nav = NULL;     //导航星历文件指针
	FILE * fp_obs = NULL;     //观测值文件指针
	FILE * result_file = NULL;//结果输出文件指针

	pstation station = NULL;
	ppos_t pos_t = NULL;
	pblh blh = NULL;
	penu enu = NULL;
	prah rah = NULL;

	pnav_head nav_h = NULL;
	pnav_body nav_b = NULL;
	pobs_head obs_h = NULL;
	pobs_epoch obs_e = NULL;
	pobs_body obs_b = NULL;//创建结构体指针，并将其初始化为空

	int over = 0;

/* -------------------------------------------------------------------------- */	
while(over == 0)
	{
		int     langop;
		char obs_flie[20];
		char nav_file[20];

		printf("**************SPP-pseudorange-positioning**************\n");
		printf("**@Author: KenanZhu\n**@Date: 2024/09/21\n**@Make by: C\n");
		printf("**@INTRO: The main functions of the software include:\n");
		printf("**read RINEX3.04 files, and output three formats of document files,\n");
		printf("**please cooperate with the corresponding tools for processing.\n");
		printf("**Specific please see:\n https://github.com/KenanZhu111/SPP_-pseudorange-positioning\n");
		printf("*******************************************************\n\n");

		printf("请选择您的语言:/Please choose your language\n(1)ENG/(0)中文\n");	
		scanf("%d",&langop);
		if (langop == 0)
		{	printf("本程序只支持 ver3.04 RINEX文件的读取\n");
			printf("请输入观测数据文件的文件名（包含拓展名）：\n");
			scanf("%s", &obs_flie);}
		if (langop == 1)
		{	printf("This program only supports reading ver3.04 RINEX files\n");
			printf("Please enter the file name (including the extension) of the observation data file.:\n");
			scanf("%s", &obs_flie);}	
/* -------------------------------------------------------------------------- */
//O文件读取
		fp_obs = fopen(obs_flie, "r");
		if (langop == 0 && fp_obs == NULL)
		{printf("观测文件%s读取失败,请检查文件名或者确认文件是否被移动\n", obs_flie);break;}
		else if (langop == 0 && fp_obs != NULL)
		{printf("观测文件%s读取成功,正在处理数据\n", obs_flie);}
		
		if (langop == 1 && fp_obs == NULL)
		{printf("Observation file %s failed to be read. Please check the file name or confirm whether the file has been moved\n", obs_flie);break;}
		else if (langop == 1 && fp_obs != NULL)	
		{printf("The observation file %s has been read successfully and data is being processed\n", obs_flie);}

		int o_epochnum = get_epochnum(fp_obs);//O文件历元数
		rewind(fp_obs);
		obs_h = (pobs_head)malloc(sizeof(obs_head));//给O文件头开辟空间
		obs_e = (pobs_epoch)malloc(sizeof(obs_epoch) * o_epochnum);
		obs_b = (pobs_body)malloc(sizeof(obs_body) * o_epochnum);
			if (obs_h && obs_e && obs_b)
			{
				read_o_h(fp_obs, obs_h);//读取O文件头
				read_o_b(fp_obs, obs_e, obs_b, obs_h->obstypenum_gps, obs_h->obstypenum_bds);//读取O数据块
			}
			fclose(fp_obs);//关闭O文件

		if (langop == 0)
		{	printf("观测文件读取完成！\n");
			printf("请输入导航文件的文件名（包含拓展名）：\n");
			scanf("%s", &nav_file);}
		if (langop == 1)
		{	printf("This program only supports reading ver3.04 RINEX files\n");
			printf("Please enter the file name (including the extension) of the Navigation data file.:\n");
			scanf("%s", &nav_file);}			
/* -------------------------------------------------------------------------- */
//N文件读取
		fp_nav = fopen(nav_file, "r");
		fp_obs = fopen(obs_flie, "r");
		if (langop == 0 && fp_nav == NULL)
		{printf("导航文件%s读取失败,请检查文件名或者确认文件是否被移动\n", nav_file);break;}
		else if (langop == 0 && fp_nav != NULL)
		{printf("观测文件%s读取成功,正在处理数据\n", nav_file);}
		
		if (langop == 1 && fp_nav == NULL)
		{printf("Navigation file %s failed to be read. Please check the file name or confirm whether the file has been moved\n", nav_file);break;}
		else if (langop == 1 && fp_nav != NULL)	
		{printf("The Navigation file %s has been read successfully and data is being processed\n", nav_file);}

		int gps_satnum = getgpssatnum(fp_nav);//获取导航文件GPS卫星数据块数
		rewind(fp_nav);//将文件指针返回值起始位置
		nav_h = (pnav_head)malloc(sizeof(nav_head));//给N文件头开辟空间
		nav_b = (pnav_body)malloc(sizeof(nav_body) * gps_satnum * 20);
			if (nav_h && nav_b)
			{
				read_n_h(fp_nav, nav_h);//读取N头文件
				read_n_b(fp_nav, nav_b);//读取N数据块
			}
			fclose(fp_nav);//关闭N文件
		
		if (langop == 0)
		{printf("导航文件读取完成！\n");printf("正在计算数据>\n");}
		if (langop == 1)
		{printf("Navigation file read complete!\n");printf("Calculating data>\n");}

/* -------------------------------------------------------------------------- */
		if (fp_obs != NULL && fp_nav != NULL)
		{
			blh = (pblh)malloc(sizeof(pblh) * o_epochnum *256);
			enu = (penu)malloc(sizeof(penu) * o_epochnum *256);
			rah = (prah)malloc(sizeof(prah) * o_epochnum *256);
			pos_t = (ppos_t)malloc(sizeof(ppos_t) * o_epochnum * 256);
			station = (pstation)malloc(sizeof(pstation) * o_epochnum * 256);
			
			over = sat_gps_pos_clac(result_file, nav_b, obs_e, obs_b, obs_h, station, pos_t, blh, enu, rah, o_epochnum, gps_satnum);
			
		}
/* -------------------------------------------------------------------------- */
		if (langop == 0)
		{	if (over == 1)
			{printf("数据生成完毕！");}
			if (over != 1)
			{printf("数据处理发生错误!");break;}}
		if (langop == 1)
		{	if (over == 1)
			{printf("Data generation completed!");}
			if (over != 1)
			{printf("Data processing error!");break;}}
	}
	return 0;
}