diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/stweath.c | 215 |
1 files changed, 215 insertions, 0 deletions
diff --git a/src/stweath.c b/src/stweath.c new file mode 100644 index 0000000..6e5bef3 --- /dev/null +++ b/src/stweath.c @@ -0,0 +1,215 @@ +/* Copyright (C) 2025 awy <awy@awy.one> + + stweath is free software: you can redistribute it and/or + modify it under 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. + + stweath is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU General Public + License along with stweath. If not, see + <https://www.gnu.org/licenses/>. */ + +#include <curl/curl.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <sys/stat.h> +#include <time.h> +#include <unistd.h> +#include "cjson/cJSON.h" + +int +getforecast(char *path) +{ + FILE *report; + CURL* handle; + CURLcode res; + + report = fopen(path, "w"); + if (!report) { return 1; } + + handle = curl_easy_init(); + + if (!handle) { + fclose(report); + return 1; + } + + curl_easy_setopt(handle, CURLOPT_URL, "https://wttr.in/?format=j1"); + curl_easy_setopt(handle, CURLOPT_WRITEFUNCTION, NULL); + curl_easy_setopt(handle, CURLOPT_WRITEDATA, report); + + res = curl_easy_perform(handle); + + if (res != CURLE_OK) { + fclose(report); + return 1; + } + + curl_easy_cleanup(handle); + + fclose(report); + return 0; +} + +int +showforecast(char *path) +{ + long size; + char *data; + char *icon; + cJSON *root, *temp, *wcode, *rain; + FILE *report; + + report = fopen(path, "rb"); + if (!report) { return 1; } + + fseek(report, 0, SEEK_END); + size = ftell(report); + fseek(report, 0, SEEK_SET); + + data = malloc(size + 1); + if (!data) { + perror("malloc"); + fclose(report); + return 1; + } + fread(data, 1, size, report); + data[size] = '\0'; + fclose(report); + + root = cJSON_Parse(data); + free(data); + if (!root) { return 1; } + + rain = cJSON_GetArrayItem(cJSON_GetObjectItem(root, "weather"), 0); + rain = cJSON_GetArrayItem(cJSON_GetObjectItem(rain, "hourly"), 0); + rain = cJSON_GetObjectItem(rain, "chanceofrain"); + temp = cJSON_GetObjectItem(root, "current_condition"); + temp = cJSON_GetArrayItem(temp, 0); + wcode = cJSON_GetObjectItem(temp, "weatherCode"); + temp = cJSON_GetObjectItem(temp, "temp_C"); + + switch (atoi(wcode->valuestring)) { + case 113: icon = ""; break; + case 116: icon = ""; break; + case 119: + case 122: + case 143: + case 248: + case 260: + icon = ""; break; + case 176: + case 179: + case 182: + case 185: + case 263: + case 266: + case 281: + case 284: + case 293: + case 296: + case 299: + case 302: + case 305: + case 308: + case 311: + case 314: + case 317: + case 350: + case 353: + case 356: + case 359: + case 362: + case 365: + case 368: + case 392: + icon = ""; break; + case 200: icon = ""; break; + case 227: + case 230: + case 320: + case 323: + case 326: + case 374: + case 377: + case 386: + case 389: + icon = ""; break; + case 329: + case 332: + case 335: + case 338: + case 371: + case 395: + icon = ""; break; + default: icon = "❓"; break; + } + + if (atoi(rain->valuestring) != 0) { + printf(" %s%% ", rain->valuestring); + } + printf("%s %s°C", icon, temp->valuestring); + + cJSON_Delete(root); + return 0; +} + +int +checkforecast(char *path) +{ + time_t now; + char *buff; + struct stat st; + int tries, force; + + /* Check if there is WEATHERFORCEUPDATE + environment variable */ + force = 0; + buff = getenv("WEATHERFORCEUPDATE"); + if (buff && buff[0] == '1') { force = 1; } + + if (stat(path, &st) != 0) { return 1; } + + now = time(NULL); + if (now == ((time_t)-1)) { return 1; } + + /* Check if 30 mins passed + then get new forecast */ + if (((now - st.st_mtime) >= 1800) || force) { + tries = 0; + /* Try 100 fast retries */ + while (tries < 100) { + if(getforecast(path) == 0) { + break; + } + tries++; + sleep(1); + } + } + + showforecast(path); + return 0; +} + +int +main(void) +{ + char *path; + + path = getenv("XDG_CACHE_HOME"); + if (!path) { puts("XDG_CACHE_HOME is not set"); return 1; } + strcat(path, "/weatherreport.json"); + + curl_global_init(CURL_GLOBAL_ALL); + + checkforecast(path); + + curl_global_cleanup(); + return 0; +} |