Commit | Line | Data |
---|---|---|
438d0d5f SK |
1 | #! /bin/bash |
2 | ||
4d314e0f SK |
3 | set -e |
4 | ||
ad0b3a5b SK |
5 | produce_bluetooth_power() { |
6 | echo -e 'show \n quit' \ | |
7 | | bluetoothctl \ | |
8 | | awk ' | |
9 | /^Controller / { | |
10 | controller = $2; | |
11 | controllers[++ctrl_count] = controller; | |
12 | } | |
13 | /^\t[A-Z][A-Za-z]+:/ { | |
14 | key = $1; | |
15 | sub(":$", "", key); | |
16 | val = $2; | |
17 | for (i=3; i<=NF; i++) { | |
18 | val = val " " $i}; | |
19 | data[controller, key] = val; | |
20 | } | |
21 | END { | |
22 | # Using the 1st seen controller. Should we select specific instead? | |
23 | power_status = data[controllers[1], "Powered"]; | |
24 | if (ctrl_count > 0) { | |
25 | if (power_status == "no") { | |
26 | power_status = "off" | |
27 | } else if (power_status == "yes") { | |
28 | power_status = "on" | |
29 | } else { | |
30 | printf("Unexpected bluetooth power status: %s\n", power_status)\ | |
31 | > "/dev/stderr"; | |
32 | power_status = "ERROR" | |
33 | } | |
34 | } else { | |
35 | power_status = "off" # TODO: Perhaps use differentiated marker? | |
36 | } | |
37 | printf("%s", power_status); | |
38 | }' | |
39 | } | |
40 | ||
bbb42518 SK |
41 | produce_screen_brightness() { |
42 | screen_brightness_device_path="$1" | |
43 | echo "\ | |
44 | $(cat $screen_brightness_device_path/max_brightness) \ | |
45 | $(cat $screen_brightness_device_path/brightness)\ | |
46 | " | |
47 | } | |
48 | ||
61e5a351 SK |
49 | produce_volume() { |
50 | pactl list sinks \ | |
51 | | awk ' | |
52 | /^\tMute:/ { | |
53 | printf("%s,", $0); | |
54 | } | |
55 | /^\tVolume:/ { | |
56 | for (i=2; i<=NF; i++) printf(" %s", $i); | |
57 | }' \ | |
58 | | awk -v RS=',' ' | |
59 | /^[ \t]*Mute:/ {mute = $2} | |
60 | /^[ \t]*front-left:/ {left = $4} | |
61 | /^[ \t]*front-right:/ {right = $4} | |
62 | END { | |
63 | if (mute == "yes") { | |
64 | printf("x") | |
65 | } else { | |
66 | printf("%s %s", left, right) | |
67 | } | |
68 | } | |
69 | ' | |
70 | } | |
71 | ||
365549a9 SK |
72 | produce_mpd_state() { |
73 | echo 'status' \ | |
74 | | nc 127.0.0.1 6600 \ | |
75 | | awk ' | |
76 | { | |
77 | status[$1] = $2 | |
78 | } | |
79 | ||
80 | /^time: +[0-9]+:[0-9]+$/ { | |
81 | split($2, time, ":") | |
82 | seconds_current = time[1] | |
83 | seconds_total = time[2] | |
84 | ||
85 | hours = int(seconds_current / 60 / 60); | |
86 | secs_beyond_hours = seconds_current - (hours * 60 * 60); | |
87 | mins = int(secs_beyond_hours / 60); | |
88 | secs = secs_beyond_hours - (mins * 60); | |
89 | if (hours > 0) { | |
90 | current_time = sprintf("%d:%.2d:%.2d", hours, mins, secs) | |
91 | } else { | |
92 | current_time = sprintf("%.2d:%.2d", mins, secs) | |
93 | } | |
94 | ||
95 | if (seconds_total > 0) { | |
96 | time_percentage = (seconds_current / seconds_total) * 100 | |
97 | current_percentage = sprintf("%d%%", time_percentage) | |
98 | } else { | |
99 | current_percentage = "~" | |
100 | } | |
101 | } | |
102 | ||
103 | END { | |
104 | state = status["state:"] | |
105 | ||
106 | if (state == "play") { | |
107 | symbol = "▶" | |
108 | } else if (state == "pause") { | |
109 | symbol = "❚❚" | |
110 | } else if (state == "stop") { | |
111 | symbol = "⬛" | |
112 | } else { | |
113 | symbol = "--" | |
114 | } | |
115 | ||
116 | printf(\ | |
117 | "%s %s %s", | |
118 | status["state:"], current_time, current_percentage\ | |
119 | ) | |
120 | } | |
121 | ' | |
122 | } | |
123 | ||
124 | produce_mpd_song() { | |
125 | echo 'currentsong' \ | |
126 | | nc 127.0.0.1 6600 \ | |
127 | | awk ' | |
128 | /^OK/ { | |
129 | next | |
130 | } | |
131 | ||
132 | { | |
133 | key = $1 | |
134 | sub("^" key " +", "") | |
135 | val = $0 | |
136 | data[key] = val | |
137 | } | |
138 | ||
139 | END { | |
140 | name = data["Name:"] | |
141 | title = data["Title:"] | |
142 | file = data["file:"] | |
143 | ||
144 | if (name) { | |
145 | out = name | |
146 | } else if (title) { | |
147 | out = title | |
148 | } else if (file) { | |
149 | last = split(file, parts, "/") | |
150 | out = parts[last] | |
151 | } else { | |
152 | out = "" | |
153 | } | |
154 | print out | |
155 | } | |
156 | ' | |
157 | } | |
438d0d5f | 158 | |
6339a4f8 | 159 | produce_weather() { |
4d314e0f SK |
160 | weather_station_id="$1" |
161 | metar -d "$weather_station_id" 2>&1 \ | |
438d0d5f SK |
162 | | awk ' |
163 | /METAR pattern not found in NOAA data/ { | |
164 | failures++ | |
165 | } | |
166 | ||
167 | /^Temperature/ { | |
168 | celsius = $3; | |
169 | fahrenheit = (celsius * (9 / 5)) + 32; | |
170 | temperature = fahrenheit | |
171 | } | |
172 | ||
173 | END { | |
174 | if (failures > 0) { | |
175 | temperature = "--" | |
176 | } | |
177 | print temperature "°F" | |
178 | }' | |
179 | } | |
180 | ||
6339a4f8 | 181 | produce_datetime() { |
438d0d5f SK |
182 | date +'%a %b %d %H:%M:%S' |
183 | } | |
184 | ||
6339a4f8 | 185 | consume() { |
438d0d5f SK |
186 | pipe="$1" |
187 | tail -f "$pipe" \ | |
188 | | stdbuf -o L awk \ | |
365549a9 SK |
189 | -v opt_debug=0 \ |
190 | -v opt_mpd_song_max_chars=10 \ | |
438d0d5f | 191 | ' |
ad0b3a5b SK |
192 | /^in:BLUETOOTH_POWER/\ |
193 | { | |
194 | split_msg_parts() | |
195 | db["bluetooth_power"] = msg_body | |
196 | } | |
197 | ||
bbb42518 SK |
198 | /^in:SCREEN_BRIGHTNESS/\ |
199 | { | |
200 | split_msg_parts() | |
201 | set_screen_brightness() | |
202 | } | |
203 | ||
61e5a351 SK |
204 | /^in:VOLUME/\ |
205 | { | |
206 | split_msg_parts() | |
207 | db["volume"] = msg_body | |
208 | } | |
209 | ||
365549a9 SK |
210 | /^in:MPD_STATE/\ |
211 | { | |
212 | split_msg_parts() | |
213 | db["mpd_state"] = $1 | |
214 | db["mpd_curr_song_time"] = $2 | |
215 | db["mpd_curr_song_percent"] = $3 | |
216 | } | |
217 | ||
218 | /^in:MPD_SONG/\ | |
438d0d5f | 219 | { |
365549a9 SK |
220 | split_msg_parts() |
221 | db["mpd_curr_song_name"] = msg_body | |
438d0d5f SK |
222 | } |
223 | ||
365549a9 | 224 | /^in:WEATHER/\ |
438d0d5f | 225 | { |
365549a9 SK |
226 | split_msg_parts() |
227 | db["weather_temperature"] = msg_body | |
438d0d5f SK |
228 | } |
229 | ||
365549a9 | 230 | /^in:DATE_TIME/\ |
438d0d5f | 231 | { |
365549a9 SK |
232 | split_msg_parts() |
233 | db["datetime"] = msg_body | |
234 | } | |
235 | ||
236 | /^out:BAR/\ | |
237 | { | |
238 | split_msg_parts() | |
438d0d5f SK |
239 | print make_bar() |
240 | } | |
241 | ||
365549a9 | 242 | |
bbb42518 SK |
243 | function set_screen_brightness( max, cur) { |
244 | max = $1 | |
245 | cur = $2 | |
246 | db["screen_brightness"] = (cur / max) * 100 | |
247 | } | |
248 | ||
365549a9 SK |
249 | function split_msg_parts() { |
250 | msg_head = $1 | |
251 | sub("^" msg_head " +", "") | |
252 | msg_body = $0 | |
253 | debug(msg_head, msg_body) | |
438d0d5f SK |
254 | } |
255 | ||
365549a9 | 256 | function make_bar( position, bar, sep, i, j) { |
ad0b3a5b | 257 | position[++i] = sprintf("B=%s", db["bluetooth_power"]) |
bbb42518 | 258 | position[++i] = sprintf("*%d%%", db["screen_brightness"]) |
61e5a351 | 259 | position[++i] = sprintf("(%s)", db["volume"]) |
365549a9 | 260 | position[++i] = make_status_mpd() |
438d0d5f SK |
261 | position[++i] = db["weather_temperature"] |
262 | position[++i] = db["datetime"] | |
263 | bar = "" | |
264 | sep = "" | |
265 | for (j = 1; j <= i; j++) { | |
266 | bar = bar sep position[j] | |
267 | sep = " " | |
268 | } | |
269 | return bar | |
270 | } | |
365549a9 SK |
271 | |
272 | function make_status_mpd( state, status) { | |
273 | state = db["mpd_state"] | |
274 | ||
275 | if (state == "play") { | |
276 | status = make_status_mpd_state_known("▶") | |
277 | } else if (state == "pause") { | |
278 | status = make_status_mpd_state_known("❚❚") | |
279 | } else if (state == "stop") { | |
280 | status = make_status_mpd_state_known("⬛") | |
281 | } else { | |
282 | status = make_status_mpd_state_unknown("--") | |
283 | } | |
284 | ||
285 | return sprintf("[%s]", status) | |
286 | } | |
287 | ||
288 | function make_status_mpd_state_known(symbol) { | |
289 | return sprintf(\ | |
290 | "%s %s %s %s", | |
291 | symbol, | |
292 | db["mpd_curr_song_time"], | |
293 | db["mpd_curr_song_percent"], | |
294 | substr(db["mpd_curr_song_name"], 1, opt_mpd_song_max_chars)\ | |
295 | ) | |
296 | } | |
297 | ||
298 | function make_status_mpd_state_unknown(symbol) { | |
299 | return sprintf("%s", symbol) | |
300 | } | |
301 | ||
302 | function debug(location, msg) { | |
303 | if (opt_debug) { | |
304 | print_error(location, msg) | |
305 | } | |
306 | } | |
307 | ||
308 | function print_error(location, msg) { | |
309 | print(location " ==> " msg) > "/dev/stderr" | |
310 | } | |
438d0d5f SK |
311 | ' |
312 | } | |
313 | ||
6339a4f8 | 314 | produce_bar_req() { |
438d0d5f SK |
315 | echo '' |
316 | } | |
317 | ||
318 | spawn() { | |
319 | cmd="$1" | |
320 | pipe="$2" | |
365549a9 | 321 | msg_head="$3" |
438d0d5f SK |
322 | interval="$4" |
323 | while true; do | |
365549a9 | 324 | echo "${msg_head} $($cmd)" > "$pipe" |
438d0d5f SK |
325 | sleep "$interval" |
326 | done & | |
327 | } | |
328 | ||
329 | main() { | |
4d314e0f SK |
330 | # Defaults |
331 | dir_data="$HOME/.khatus" | |
332 | weather_station_id='KJFK' | |
bbb42518 | 333 | screen_brightness_device_name='acpi_video0' |
4d314e0f SK |
334 | |
335 | # User-overrides | |
336 | OPTS=$( | |
337 | getopt \ | |
338 | -o '' \ | |
bbb42518 | 339 | -l data-dir:,weather-station:screen-device: \ |
4d314e0f SK |
340 | -- "$@" |
341 | ) | |
342 | eval set -- "$OPTS" | |
343 | while true | |
344 | do | |
345 | case "$1" in | |
346 | --data-dir) | |
347 | dir_data="$2" | |
348 | shift 2 | |
349 | ;; | |
350 | --weather-station) | |
351 | weather_station_id="$2" | |
352 | shift 2 | |
353 | ;; | |
bbb42518 SK |
354 | --screen-device) |
355 | screen_brightness_device_name="$2" | |
356 | shift 2 | |
357 | ;; | |
4d314e0f SK |
358 | --) |
359 | shift | |
360 | break | |
361 | ;; | |
362 | esac | |
363 | done | |
364 | ||
0c0ebbe1 | 365 | pipe="$dir_data/khatus_data_pipe" |
bbb42518 SK |
366 | screen_brightness_device_path='/sys/class/backlight' |
367 | screen_brightness_device_path+="/$screen_brightness_device_name" | |
0c0ebbe1 | 368 | |
4d314e0f SK |
369 | ( echo "Khatus starting with the following parameters:" |
370 | ( echo " dir_data|= $dir_data" | |
0c0ebbe1 | 371 | echo " pipe|= $pipe" |
bbb42518 SK |
372 | echo " screen_brightness_device_name|=$screen_brightness_device_name" |
373 | echo " screen_brightness_device_path|=$screen_brightness_device_path" | |
4d314e0f SK |
374 | echo " weather_station_id|= $weather_station_id" |
375 | ) | column -ts\| | |
376 | echo '' | |
377 | ) >&2 | |
378 | ||
4d314e0f | 379 | mkdir -p "$dir_data" |
438d0d5f SK |
380 | rm -f "$pipe" |
381 | mkfifo "$pipe" | |
382 | ||
bbb42518 SK |
383 | cmd_produce_screen_brightness='produce_screen_brightness' |
384 | cmd_produce_screen_brightness+=" $screen_brightness_device_path" | |
0c0ebbe1 SK |
385 | cmd_produce_weather="produce_weather $weather_station_id" |
386 | ||
4d314e0f | 387 | # TODO: Redirect each worker's stderr to a dedicated log file |
0c0ebbe1 | 388 | spawn produce_datetime "$pipe" 'in:DATE_TIME' 1 |
bbb42518 | 389 | spawn "$cmd_produce_screen_brightness" "$pipe" 'in:SCREEN_BRIGHTNESS' 1 |
0c0ebbe1 SK |
390 | spawn "$cmd_produce_weather" "$pipe" 'in:WEATHER' $(( 30 * 60 )) |
391 | spawn produce_mpd_state "$pipe" 'in:MPD_STATE' 1 | |
392 | spawn produce_mpd_song "$pipe" 'in:MPD_SONG' 1 | |
393 | spawn produce_volume "$pipe" 'in:VOLUME' 1 | |
ad0b3a5b | 394 | spawn produce_bluetooth_power "$pipe" 'in:BLUETOOTH_POWER' 5 |
0c0ebbe1 SK |
395 | spawn produce_bar_req "$pipe" 'out:BAR' 1 |
396 | consume "$pipe" | |
438d0d5f SK |
397 | } |
398 | ||
399 | main $@ |