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#ifndef GRAPH_H
#define GRAPH_H
#define ZOOM_5y 0
#define ZOOM_4y 1
#define ZOOM_3y 2
#define ZOOM_2y 3
#define ZOOM_1y 4
#define ZOOM_9m 5
#define ZOOM_6m 6
#define ZOOM_3m 7
#define ZOOM_1m 8
#define ROWS_SPACING 5
#define COLS_SPACING 12
#define DAYS_TO_BUSINESS_DAYS_RATIO (29.0/20.0)
#include <stdlib.h>
#include <ncurses.h>
#include "api.h"
extern int zoom_months[9], zoom_change_x_months[9];
/**
* -- Main input loop for graphing --
*
* Gets the five year history of the given security(s) and calls graph_print to initially display a graph of it/them.
* If symbol2 is NULL, only displays the graph for symbol.
* The user may input keystrokes to manipulate the graph(s).
* Valid keystrokes:
* q: Quits program
* UP: increase zoom level by one and moves start date forward by one year, three months, or two months.
* DOWN: decreases zoom level by one and moves start date backward by one year, three months, or two months.
* LEFT: moves start date backward by one year, three months, or one month.
* RIGHT: moves start date forward by one year, three months, or one month.
* @param symbol first symbol
* @param symbol2 second symbol
*/
void graph_main(const char* symbol, const char* symbol2);
/**
* Prints out a NCurses based graph given an array of daily close prices.
* If points2 if not NULL, also prints a graph of its data in a different color.
* x-axis -- date
* y-axis -- close price
* @param points daily close prices of past five years of first security
* @param points2 daily close prices of past five years of second security
* @param start_time the starting date of prices to print
* @param zoom the zoom level
* @param symbol first symbol
* @param symbol2 second symbol
*/
void graph_print(const double* points, const double* points2, struct tm* start_time, int zoom,
const char* symbol, const char* symbol2);
/**
* Reallocates the given array with size trading days. Moves all values to end of the array and sets
* values not initialized as EMPTY.
* @param points the array to realloc
* @param size the size of points
* @param trading_days the size to realloc
* @return the reallocated array
*/
double* graph_fill_empty(double* points, int size, int trading_days);
#endif
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