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100 lines
2.4 KiB
100 lines
2.4 KiB
use std::ffi::{c_char, c_double, CStr, CString};
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use chrono::Local;
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use chrono_tz::{Tz, TZ_VARIANTS};
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use strsim::levenshtein;
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#[no_mangle]
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pub extern "C" fn id() -> *const c_char {
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str_to_ptr("time")
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}
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#[no_mangle]
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pub extern "C" fn name() -> *const c_char {
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str_to_ptr("Time")
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}
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#[no_mangle]
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pub extern "C" fn panel() -> *const c_char {
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str_to_ptr(include_str!("./panel/dist/index.js"))
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}
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#[no_mangle]
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pub extern "C" fn get_priority(data: *const c_char) -> c_double {
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if ptr_to_string(data).starts_with("time") {
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100.0
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} else {
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0.0
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}
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}
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#[no_mangle]
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pub extern "C" fn get_timezone_name(data: *const c_char) -> *const c_char {
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let data = ptr_to_string(data);
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let local_timezone = iana_time_zone::get_timezone().unwrap_or_default();
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if data == "" {
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return str_to_ptr(&local_timezone);
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}
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if let Some(timezone) = get_closest_zone(data) {
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return str_to_ptr(&timezone.to_string());
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};
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str_to_ptr("INVALID_TIME_ZONE")
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}
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#[no_mangle]
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pub extern "C" fn get_time(data: *const c_char) -> *const c_char {
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let data = ptr_to_string(data);
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let Some(timezone) = get_closest_zone(data) else {
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return str_to_ptr("INVALID_TIME_ZONE");
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};
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let current = Local::now();
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let converted = current.with_timezone(&timezone);
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let converted_string = converted.time().format("%H:%M:%S").to_string();
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str_to_ptr(&converted_string)
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}
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#[no_mangle]
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pub extern "C" fn get_local_time() -> *const c_char {
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let current = Local::now();
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let current_string = current.time().format("%H:%M:%S").to_string();
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str_to_ptr(¤t_string)
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}
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fn get_closest_zone(zone: String) -> Option<Tz> {
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let mut closest_distance = usize::MAX;
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let mut closest_zone = None;
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for variant in TZ_VARIANTS {
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let variant_distance = levenshtein(
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&zone.to_string().to_lowercase(),
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&variant.to_string().to_lowercase(),
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);
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if variant_distance < closest_distance {
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closest_distance = variant_distance;
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closest_zone = Some(variant);
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}
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}
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closest_zone
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}
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fn ptr_to_string(c_buf: *const c_char) -> String {
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let c_str: &CStr = unsafe { CStr::from_ptr(c_buf) };
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let str_slice: &str = c_str.to_str().unwrap();
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let str_buf: String = str_slice.to_owned();
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str_buf
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}
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fn str_to_ptr(str: &str) -> *const c_char {
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CString::new(str).unwrap().into_raw()
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}
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