timeblok 0.5.0

A language for event scheduling in plain text
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141

use std::collections::HashSet;
use std::fs::File;
use std::io::Read;
use std::path::{Path, PathBuf};
use std::str::FromStr;

use crate::{
    environment::Environment,
    ir::{filter::Filter, Date, ExactDate},
    resolver::resolve_date,
};
use chrono::NaiveDate;
use icalendar::{Calendar, Component};
use crate::ir::{ExactDateTime, ExactEvent, ExactRange, ExactRecord, ExactTime, ExactTimeRange, Todo, ExactNotes};
use anyhow::{Result, anyhow};
use crate::utils::get_dir;
#[cfg(not(target_family = "wasm"))]
use crate::utils::download_file;

#[derive(Debug, Clone)]
pub struct SetFilter {
    dates: HashSet<ExactDate>,
}

impl Filter<Date> for SetFilter {
    fn check(&self, value: &Date, env: Option<&Environment>) -> bool {
        self.dates
            .contains(&resolve_date(value, env.unwrap()).unwrap())
    }
}

impl SetFilter {
    pub fn from_naive_dates(dates: impl IntoIterator<Item = NaiveDate>) -> Self {
        let mut set = HashSet::new();
        for date in dates {
            set.insert(ExactDate::from_naive(date));
        }
        SetFilter { dates: set }
    }

    pub fn from_ics(cal: &Calendar) -> Self {
        let mut dates = HashSet::new();
        for c in cal.iter() {
            if let Some(event) = c.as_event() {
                match (event.get_start(), event.get_end()) {
                    (Some(st), Some(nd)) => {
                        let est = ExactDate::from_date_perhaps_time(st).to_naive();
                        let end = ExactDate::from_date_perhaps_time(nd).to_naive();
                        for i in 0..=(end - est).num_days() {
                            dates.insert(ExactDate::from_naive(est + chrono::Duration::days(i)));
                        }
                    }
                    (Some(st), None) => {
                        let est = ExactDate::from_date_perhaps_time(st).to_naive();
                        dates.insert(ExactDate::from_naive(est));
                    }
                    (None, Some(nd)) => {
                        let end = ExactDate::from_date_perhaps_time(nd).to_naive();
                        dates.insert(ExactDate::from_naive(end));
                    }
                    (_, _) => {}
                }
            }
        }
        Self { dates }
    }
}


#[cfg(not(target_family = "wasm"))]
pub fn import_ics(url: &String) -> Result<Calendar>{
    let contents = if url.starts_with("http"){
        let loc = get_dir()?.join("ics").join(&url);
        download_file(url, loc.clone(), None)?;
        let mut contents = String::new();
        File::open(loc)?.read_to_string(&mut contents)?;
        contents
    } else {
        let mut contents = String::new();
        File::open(PathBuf::from_str(url.as_str())?)?.read_to_string(&mut contents)?;
        contents
    };
    match Calendar::from_str(&contents) {
        Ok(cal) => Ok(cal),
        Err(e) => Err(anyhow!(e))
    }
}

#[cfg(target_family = "wasm")]
pub fn import_ics(source: &String) -> Result<Calendar>{
    match Calendar::from_str(source) {
        Ok(cal) => Ok(cal),
        Err(e) => Err(anyhow!(e))
    }
}

pub fn ics_to_records(cal: &Calendar) -> Vec<ExactRecord>{
    let mut records = vec![];
    for c in cal.iter(){
        if let Some(event) = c.as_event() {
            let range  = match (event.get_start(), event.get_end()) {
                (Some(st), Some(nd)) => {
                    let est = ExactDateTime::from_date_perhaps_time(st);
                    let end  = ExactDateTime::from_date_perhaps_time(nd);
                    ExactRange::TimeRange(ExactTimeRange{
                        start: est,
                        end
                    })
                }
                (Some(st), None) => {
                    let est = ExactDate::from_date_perhaps_time(st);
                    ExactRange::AllDay(est)
                }
                (None, Some(nd)) => {
                    let end = ExactDate::from_date_perhaps_time(nd);
                    ExactRange::AllDay(end)
                }
                (_, _) => {continue;}
            };
            records.push(ExactRecord::Event(ExactEvent{
                range,
                name: event.get_summary().unwrap_or("").to_string(),
                notes: match event.get_description(){
                    Some(s) => Some(ExactNotes{
                        description: s.to_string(),
                        properties: vec![], // TODO: add properties
                    }),
                    None => None
                }
            }))
        }
        if let Some(td) = c.as_todo(){
            records.push(ExactRecord::Todo(Todo{
                name: td.get_summary().unwrap_or("").to_string(),
                due: None,
                status: td.get_status().unwrap_or(icalendar::TodoStatus::NeedsAction),
            }))
        }
    }
    records
}