// retoor <retoor@molodetz.nl>

#ifndef GRAPHS_H
#define GRAPHS_H

/*
 * Column-chart renderer for abr.
 *
 * Every visual in abr is the same object: a vertical bar chart with a labelled
 * y-axis, a baseline and an x-axis. One shape, one colour language, no
 * decoration. Charts adapt to the terminal width and degrade to plain ASCII
 * when colour is turned off.
 */

/* Enable or disable ANSI colour. Call once at start-up (e.g. isatty(1)). */
void graph_set_color(int enabled);

/* Width in columns the charts will occupy, for aligning surrounding output. */
int graph_width(void);

/* Bold section rule, e.g. graph_section("Latency"). */
void graph_section(const char *title);

/* Distribution of response times. Input need not be sorted. */
void graph_latency_histogram(const double *durations_ms, int count);

/* Completed requests per time slice; failures stack on top in red. */
void graph_throughput(const double *finish_ms, const int *failed, int count,
                      double total_seconds);

/* Mean response time per time slice, over successful requests only. */
void graph_latency_over_time(const double *finish_ms, const double *durations_ms,
                             const int *failed, int count, double total_seconds);

/* Response time percentiles as columns; the tail (p95+) is highlighted. */
void graph_percentiles(const double *durations_ms, int count);

#endif