Zander671/rpi4b-temp-humidity
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Work on date selection

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This commit is contained in:
Alexander Rosenberg
2024-03-31 04:21:31 -07:00
parent da83874d11
commit c0e51c13ed
5 changed files with 192 additions and 36 deletions
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5
src/lcd.c
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@ -48,6 +48,8 @@ static void lcd_pulse_enable(LCD *lcd) {
LCD *lcd_open(gpio_handle_t handle, gpio_pin_t rs, gpio_pin_t rw, gpio_pin_t en,
gpio_pin_t d0, gpio_pin_t d1, gpio_pin_t d2, gpio_pin_t d3,
gpio_pin_t d4, gpio_pin_t d5, gpio_pin_t d6, gpio_pin_t d7) {
LOG_VERBOSE("Initializing LCD: rs=%d, rw=%d, en=%d, d={%d, %d, %d, %d, %d, "
"%d, %d, %d}\n", rs, rw, en, d0, d1, d2, d3, d4, d5, d6, d7);
LCD *lcd = malloc_checked(sizeof(LCD));
lcd->handle = handle;
lcd->rs = rs;
@ -68,8 +70,7 @@ LCD *lcd_open(gpio_handle_t handle, gpio_pin_t rs, gpio_pin_t rw, gpio_pin_t en,
lcd_call(lcd, 0, 0, 0, 0, 1, 1, 1, 0, 0); // 5x8 font, 2 lines, 8bit
lcd_entry_mode(lcd, LCD_INCREMENT, LCD_CURSOR_MOVE);
lcd_display_control(lcd, LCD_CURSOR_NO_BLINK, LCD_CURSOR_OFF, LCD_DISPLAY_ON);
LOG_VERBOSE("Initializing LCD: rs=%d, rw=%d, en=%d, d={%d, %d, %d, %d, %d, "
"%d, %d, %d}\n", rs, rw, en, d0, d1, d2, d3, d4, d5, d6, d7);
LOG_VERBOSE("LCD Initialization done\n");
return lcd;
}

109
src/screen.c
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@ -171,15 +171,6 @@ StatsScreen *stats_screen_new() {
return s;
}
static const char *PERIOD_LABELS[] = {
"HOUR",
"DAY",
"WEEK",
"MONTH",
"YEAR",
};
static const size_t NPERIOD = sizeof(PERIOD_LABELS) / sizeof(char *);
static void stats_by_select_period(StatsByScreen *screen, SensorState *state) {
if (state->up_down) {
screen->period = (screen->period + 1) % NPERIOD;
@ -206,15 +197,15 @@ static void stats_by_select_period(StatsByScreen *screen, SensorState *state) {
if (state->sel_down) {
++screen->stage;
switch (screen->period) {
case 0:
case 1:
case 2:
case PERIOD_HOUR:
case PERIOD_DAY:
case PERIOD_WEEK:
screen->ds.max_stage = DATE_SEL_DAY;
break;
case 3:
case PERIOD_MONTH:
screen->ds.max_stage = DATE_SEL_MONTH;
break;
case 4:
case PERIOD_YEAR:
screen->ds.max_stage = DATE_SEL_YEAR;
break;
}
@ -244,11 +235,14 @@ static void date_sel_clamp_time(DateSelection *ds) {
if (ds->year == ds->end_time.local_year &&
ds->month > ds->end_time.local_month) {
ds->month = ds->end_time.local_month;
if (ds->stage == DATE_SEL_DAY) {
// last days of previous month
ds->day = days_in_month(ds->month, ds->year);
}
}
if (ds->month == ds->end_time.local_year &&
if (ds->year == ds->end_time.local_year &&
ds->month == ds->end_time.local_month &&
ds->day > ds->end_time.local_day) {
printf("Clamp Day High!\n");
ds->day = ds->end_time.local_day;
}
if (ds->year < ds->start_time.local_year) {
@ -257,16 +251,15 @@ static void date_sel_clamp_time(DateSelection *ds) {
if (ds->year == ds->start_time.local_year &&
ds->month < ds->start_time.local_month) {
ds->month = ds->start_time.local_month;
if (ds->stage == DATE_SEL_DAY) {
ds->day = 1; // first day of the next month
}
}
if (ds->year == ds->start_time.local_year &&
ds->month == ds->start_time.local_month &&
ds->day < ds->start_time.local_day) {
printf("Clamp Day Low!\n");
ds->day = ds->start_time.local_day;
}
printf("Max: %d %d %d\n", ds->end_time.local_year, ds->end_time.local_month, ds->end_time.local_day);
printf("Min: %d %d %d\n", ds->start_time.local_year, ds->start_time.local_month, ds->start_time.local_day);
printf("Cur: %d %d %d\n", ds->year, ds->month, ds->day);
}
static void date_sel_cleanup(DateSelection *ds) {
@ -404,12 +397,77 @@ static void stats_by_select_start(StatsByScreen *screen, SensorState *state) {
break; // ignore
case DATE_SEL_DONE:
++screen->stage;
screen->offset_scale = 0;
screen->need_redraw = true;
screen->ulimit_reached = false;
break;
}
}
}
static void stats_by_show_stats(StatsByScreen *screen, SensorState *state) {
if (state->back_down) {
screen->stage = STATS_BY_SELECT_PERIOD;
screen->need_redraw = true;
screen->ds.stage = DATE_SEL_YEAR;
} else if (screen->need_redraw) {
screen->need_redraw = false;
lcd_display_control(state->lcd, LCD_CURSOR_NO_BLINK, LCD_CURSOR_OFF,
LCD_DISPLAY_ON);
lcd_clear(state->lcd);
lcd_move_to(state->lcd, 0, 0);
UtilAverageRange data;
if (!get_average_for_range(state->db, screen->ds.year, screen->ds.month,
screen->ds.day, screen->offset_scale,
screen->period, &data)) {
lcd_write_string(state->lcd, "Query failed!");
warnx("failed to query average temperature and humidity");
return;
}
screen->ulimit_reached = data.upper_bound;
screen->blimit_reached = data.lower_bound;
char period_string[17];
switch (screen->period) {
case PERIOD_YEAR:
snprintf(period_string, 17, "Year>%d", data.year);
break;
case PERIOD_MONTH:
snprintf(period_string, 17, "Month>%d-%d", data.year,
data.month);
break;
case PERIOD_WEEK:
snprintf(period_string, 17, "Week>%d-%d-%d", data.year,
data.month, data.day);
break;
case PERIOD_DAY:
snprintf(period_string, 17, "Day>%d-%d-%d", data.year,
data.month, data.day);
break;
case PERIOD_HOUR:
snprintf(period_string, 17, "Hour>%d-%d %d:00", data.month,
data.day, data.hour);
break;
}
lcd_write_string(state->lcd, period_string);
lcd_move_to(state->lcd, 1, 0);
if (data.npoints) {
char data_string[17];
snprintf(data_string, 17, "T:%.1fF H:%d%%", DK_TO_F(data.temp), data.humid);
lcd_write_string(state->lcd, data_string);
} else {
lcd_write_string(state->lcd, "No data!");
}
}
if (!screen->ulimit_reached && state->up_down) {
++screen->offset_scale;
screen->need_redraw = true;
}
if (!screen->blimit_reached && state->down_down) {
--screen->offset_scale;
screen->need_redraw = true;
}
}
static bool stats_by_screen_dispatch(StatsByScreen *screen,
SensorState *state) {
if (state->force_draw) {
@ -432,16 +490,7 @@ static bool stats_by_screen_dispatch(StatsByScreen *screen,
stats_by_select_start(screen, state);
break;
case STATS_BY_SHOWING:
if (state->back_down) {
screen->stage = STATS_BY_SELECT_PERIOD;
screen->need_redraw = true;
screen->ds.stage = DATE_SEL_YEAR;
} else if (screen->need_redraw) {
lcd_clear(state->lcd);
lcd_move_to(state->lcd, 0, 0);
lcd_write_string(state->lcd, "Some data!");
screen->need_redraw = false;
}
stats_by_show_stats(screen, state);
break;
default:
LOG_VERBOSE("Attempt to show bad stats by screen\n");

8
src/screen.h
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@ -6,8 +6,7 @@
* the terms of the GNU General Public License as published by the Free Software
* Foundation, either version 3 of the License, or (at your option) any later
* version. See the LICENSE file for more information.
*/
#ifndef INCLUDED_SCREEN_H
*/ #ifndef INCLUDED_SCREEN_H
#define INCLUDED_SCREEN_H
#include "button.h"
@ -161,8 +160,11 @@ typedef struct {
STATS_BY_SHOWING,
} stage;
bool need_redraw;
int period;
UtilPeriod period;
DateSelection ds;
int offset_scale;
bool ulimit_reached;
bool blimit_reached;
} StatsByScreen;
/*

75
src/util.c
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@ -12,6 +12,15 @@
#include <err.h>
#include <string.h>
const char *PERIOD_LABELS[] = {
"HOUR",
"DAY",
"WEEK",
"MONTH",
"YEAR",
};
const size_t NPERIOD = sizeof(PERIOD_LABELS) / sizeof(char *);
Options GLOBAL_OPTS;
void cleanup_options(Options *opts) {
@ -96,25 +105,53 @@ static const char *DB_LIMITS_QUERY_STR =
"unixepoch(max(time), 'unixepoch', 'localtime', '+1 ' || ?1, 'start of ' || ?1, '-1 second') as MaxLocal\n"
"FROM env_data);";
static sqlite3_stmt *DB_LIMITS_QUERY;
const char *AVG_FOR_RANGE_QUERY_STR =
"SELECT\n"
"strftime('%Y', stime, 'unixepoch', 'localtime') as y,\n"
"strftime('%m', stime, 'unixepoch', 'localtime') as m,\n"
"strftime('%e', stime, 'unixepoch', 'localtime') as d,\n"
"strftime('%H', stime, 'unixepoch', 'localtime') as h,\n"
"ndata,\n"
"etime >= (select max(time) from env_data) as ulimit,\n"
"stime <= (select min(time) from env_data) as blimit,\n"
"atemp,\n"
"ahumid\n"
"FROM (SELECT\n"
"unixepoch(printf('%04d-%02d-%02d', ?1, ?2, ?3), 'utc', printf('%d %s', ?4 * ?6, ?5)) as stime,\n"
"unixepoch(printf('%04d-%02d-%02d', ?1, ?2, ?3), 'utc', printf('%d %s', (?4 + 1) * ?6, ?5)) as etime,\n"
"count(time) AS ndata,\n"
"round(avg(temp)) AS atemp,\n"
"round(avg(humid)) AS ahumid\n"
"FROM env_data\n"
"WHERE time > stime\n"
"AND time < etime);\n";
static sqlite3_stmt *AVG_FOR_RANGE_QUERY;
void initialize_util_queries(sqlite3 *db) {
int status = sqlite3_prepare_v2(db, DB_LIMITS_QUERY_STR, -1,
&DB_LIMITS_QUERY, NULL);
if (status != SQLITE_OK) {
errx(1, "failed to compile limits query: %s", sqlite3_errstr(status));
}
status = sqlite3_prepare_v2(db, AVG_FOR_RANGE_QUERY_STR, -1,
&AVG_FOR_RANGE_QUERY, NULL);
if (status != SQLITE_OK) {
errx(1, "failed to compile range average query: %s", sqlite3_errstr(status));
}
}
void cleanup_util_queries() {
sqlite3_finalize(DB_LIMITS_QUERY);
sqlite3_finalize(AVG_FOR_RANGE_QUERY);
}
bool get_database_limits(sqlite3 *db, const char *period, UtilDate *start,
UtilDate *end) {
if (strcasecmp(period, "week") == 0 || strcasecmp(period, "hour") == 0) {
period = "day";
}
bool success = true;
sqlite3_bind_text(DB_LIMITS_QUERY, 1, period, -1, SQLITE_TRANSIENT);
sqlite3_bind_text(DB_LIMITS_QUERY, 1, period, -1, SQLITE_STATIC);
int status = sqlite3_step(DB_LIMITS_QUERY);
if (status == SQLITE_ROW) {
if (start) {
@ -145,3 +182,39 @@ bool get_database_limits(sqlite3 *db, const char *period, UtilDate *start,
sqlite3_reset(DB_LIMITS_QUERY);
return success;
}
bool get_average_for_range(sqlite3 *db, int year, int month, int day,
int64_t count, UtilPeriod period,
UtilAverageRange *data) {
bool success = true;
sqlite3_bind_int(AVG_FOR_RANGE_QUERY, 1, year);
sqlite3_bind_int(AVG_FOR_RANGE_QUERY, 2, month);
sqlite3_bind_int(AVG_FOR_RANGE_QUERY, 3, day);
sqlite3_bind_int64(AVG_FOR_RANGE_QUERY, 4, count);
if (period == PERIOD_WEEK) {
sqlite3_bind_text(AVG_FOR_RANGE_QUERY, 5, "days", -1, SQLITE_STATIC);
sqlite3_bind_int(AVG_FOR_RANGE_QUERY, 6, 7);
} else {
sqlite3_bind_text(AVG_FOR_RANGE_QUERY, 5, PERIOD_LABELS[period], -1,
SQLITE_STATIC);
sqlite3_bind_int(AVG_FOR_RANGE_QUERY, 6, 1);
}
int status = sqlite3_step(AVG_FOR_RANGE_QUERY);
if (status == SQLITE_ROW) {
if (data) {
data->year = sqlite3_column_int(AVG_FOR_RANGE_QUERY, 0);
data->month = sqlite3_column_int(AVG_FOR_RANGE_QUERY, 1);
data->day = sqlite3_column_int(AVG_FOR_RANGE_QUERY, 2);
data->hour = sqlite3_column_int(AVG_FOR_RANGE_QUERY, 3);
data->npoints = sqlite3_column_int(AVG_FOR_RANGE_QUERY, 4);
data->upper_bound = sqlite3_column_int64(AVG_FOR_RANGE_QUERY, 5);
data->lower_bound = sqlite3_column_int64(AVG_FOR_RANGE_QUERY, 6);
data->temp = sqlite3_column_int(AVG_FOR_RANGE_QUERY, 7);
data->humid = sqlite3_column_int(AVG_FOR_RANGE_QUERY, 8);
}
} else {
success = false;
}
sqlite3_reset(AVG_FOR_RANGE_QUERY);
return success;
}

31
src/util.h
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@ -103,6 +103,16 @@ typedef struct {
int local_day;
} UtilDate;
typedef enum {
PERIOD_HOUR = 0,
PERIOD_DAY,
PERIOD_WEEK,
PERIOD_MONTH,
PERIOD_YEAR,
} UtilPeriod;
extern const char *PERIOD_LABELS[];
extern const size_t NPERIOD;
/*
* Return the START of the first and END of the last PERIOD (ex. week) of DB.
* Return: false if an error occurred, true otherwise.
@ -110,4 +120,25 @@ typedef struct {
bool get_database_limits(sqlite3 *db, const char *period, UtilDate *start,
UtilDate *end);
typedef struct {
int npoints;
int temp;
int humid;
int year;
int month;
int day;
int hour;
bool lower_bound;
bool upper_bound;
} UtilAverageRange;
/*
* Get the average temp. and humid. between YEAR-MONTH-DAY + COUNT * PERIOD and
* YEAR-MONTH-DAY + (COUNT + 1) * PERIOD.
* Return: false if an error occurred, true otherwise.
*/
bool get_average_for_range(sqlite3 *db, int year, int month, int day,
int64_t count, UtilPeriod period,
UtilAverageRange *data);
#endif