#include "basic.h"
#include "func.h"
#include "cli_func.h"
#include<cstdio>
#include<cstring>
#include<iostream>

bool note(char letter[]); 
int sentence_type(char letter[]);
int Judge_function_type(char letter[]);
int grammar(char letter[], int line);
bool brackets(char letter[]); 
bool endwith_yr(char letter[], int line);
int sentence_type(char letter[]);
bool pd_operation(char letter[]);
bool pd_define_vars(char letter[]);
void define__del_endbeg(char letter[]);
void define_del_mid(char letter[]);
//判断注释

bool note(char letter[]) {
 if (letter[0] == '/' && letter[1] == '/')return 1;
 else return 0;
}
//判断语句类型
int Judge_function_type(char letter[]) {
 int i1 = 0, i2 = 0;//i1判断括号
 
 
 if(pd_operation(letter))return 4;
 if(pd_define_vars(letter))return 5;
 if (!std::strcmp(letter,"exit()")){
 exit(0);
 }
 if (!std::strcmp(letter,"piano()")){
 play_piano();return 0;
 }
 if (!std::strcmp(letter,"randphoto()")){
 make_random_photos();
 return 0;
 }
 if (letter[0]=='y'&&letter[1]=='f')return 10;

 while (letter[i1] != '(')++i1;//找到位置

 if (i1 == std::strlen(letter))return 1;//判断是否有

 else {
 char message[1000];
 for (int i = 0; i <= std::strlen(letter); i++)message[i] = 0;
 for (int j = 0; j < i1; j++) {//将字符串提取
 message[j] = letter[j];
 }
 // std::cout<<message<<std::endl;
 
 if (!std::strcmp(message, "yrsays"))return 2;
 if (!std::strcmp(message, "yreat"))return 3;

 if (letter[0]=='y'&&letter[1]=='f')return 10;
 return 1;
 }
 return 0;
}
//判断语法错误是否存在
int grammar(char letter[], int line) {
 int strl = std::strlen(letter);
 int i1 = 0, i2 = 0;//i1判断括号
 while (letter[i1] != '(')++i1;//找到位置
 char message[1000];
 for (int i = 0; i <= std::strlen(letter); i++)message[i] = 0;
 for (int j = 0; j < i1; j++) {//将字符串提取
 message[j] = letter[j];
 }
 if (endwith_yr(letter, line))return 1;
 return 0;
}

//括号匹配
bool brackets(char letter[]) {
 return 1;
}
//是否以" yr"结尾
bool endwith_yr(char letter[], int line) {
 int strl = std::strlen(letter);
 if ((!(letter[strl - 1] == 'r' && letter[strl - 2] == 'y' && letter[strl - 3] == ' ')) && (sentence_type(letter) == 1)) {
 std::cout << "In line "<< line<<" Should end with yr\n";
 return 1;
 }
 else {
 return 0;
 }
}

//判断语句类型
int sentence_type(char letter[]) {
 int i1 = 0, i2 = 0;//i1判断括号
 while (letter[i1] != '(')++i1;//找到位置
 char message[1000];
 for (int i = 0; i <= std::strlen(letter); i++)message[i] = 0;
 for (int j = 0; j < i1; j++) {//将字符串提取
 message[j] = letter[j];
 }
 if (!strcmp(message, "yfor"))return 10;
 if (!strcmp(message, "yile"))return 11;
 if (!strcmp(message, "yif"))return 12;
 if (!strcmp(message, "ylse"))return 13;
 return 1;
}

bool pd_operation(char letter[]){
 int symbol_times=0,symbol_position,equal_times=0,equal_position;
 for(int i=0;i<std::strlen(letter);i++){
 if(letter[i]=='+'||letter[i]=='-'||letter[i]=='*'||letter[i]=='/'||letter[i]=='^'||letter[i]=='%'){
 symbol_position=i;
 symbol_times++;
 }
 if(letter[i]=='='){
 equal_position=i;
 equal_times++;
 }
 }

 int l1=0,l2=equal_position+1,l3=symbol_position+1,r1=equal_position-1,r2=symbol_position-1,r3=strlen(letter)-4;
 // cout<<l1<<" "<<r1<<" "<<l2<<" "<<r2<<" "<<l3<<" "<<r3<<endl;
 if(symbol_times==1&&equal_times==1){
 if(l1<=r1&&l2<=r2&&l3<=r3)return 1;
 }
 return 0;
}

bool pd_define_vars(char letter[]){
 int p1=0,p2;
 while(p1<=10){
 if(letter[p1]!=' ')break;
 p1++;
 }
 p2=p1;
 while(p2<=10){
 if(letter[p2]==' ')break;
 p2++;
 }
 char var[10];
 _strcpy(var,letter,p1,p2-1);
 std::string tmp=var;
 if(tmp=="yri"||tmp=="yrf"||tmp=="yrc"||tmp=="yrs"||tmp=="yrb"){
 // cout<<tmp<<endl;
 return 1;
 }
 else return 0;
}

void define__del_endbeg(char letter[]){
 int l=0,r=strlen(letter)-1;
 while(letter[l]==' ')l++;
 while(letter[r]==' ')r--;
 _strcpy(letter,letter,l,r);
 return;
}

void define_del_mid(char letter[]){
 int t=0,l=0,r=0;std::string out;
 for(int i=0;i<strlen(letter);i++){
 if(letter[i]!=' ') out+=letter[i];
 if(letter[i]==' '){
 out+=' ';
 while(letter[i+1]==' ')i++;
 }
 }
 strcpy(letter,out.c_str());
}