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use crate::cursorfile;
use crate::utils::stdioutils;
use crate::KhResult;
use crate::seqfile;
use crate::cli::{CursorArgs,Direction as CursorDirection};
enum Direction {
Up,
Down,
}
pub fn do_cursor(args: &CursorArgs) -> KhResult<()> {
if !stdioutils::is_stdin_tty() {
write_stdin_to_cursorfile()?;
} else {
//println!("stdin is tty")
if let Some(direction) = &args.direction {
match direction {
CursorDirection::prev => return cursor_sequence_move(&Direction::Up),
CursorDirection::next => return cursor_sequence_move(&Direction::Down),
}
};
}
if !stdioutils::is_stdout_tty() || stdioutils::is_stdin_tty() {
write_cursorfile_to_stdout();
}
Ok(())
}
fn write_stdin_to_cursorfile() -> KhResult<()> {
let lines = stdioutils::read_lines_from_stdin()?;
if lines.len() > 1 {
Err("Too many lines on stdin")?;
};
cursorfile::write_cursorfile(&lines[0])?;
Ok(())
}
fn write_cursorfile_to_stdout() {
if let Ok(cursor) = cursorfile::read_cursorfile() {
khprintln!("{}", cursor);
}
}
fn cursor_sequence_move(direction: &Direction) -> KhResult<()> {
let cursor_event = cursorfile::read_cursorfile()?;
let mut seq = seqfile::read_seqfile_khlines()?;
let next_elem = match direction {
Direction::Up => {
let mut seq_rev = seq.rev();
seq_rev.find(|line| line == &cursor_event);
seq_rev.next()
},
Direction::Down => {
seq.find(|line| line == &cursor_event);
seq.next()
}
};
match next_elem {
Some(next_elem) => cursorfile::write_cursorfile(&next_elem.to_string()),
None => {
warn!("Already at end of sequence");
Ok(())
}
}
}
#[cfg(test)]
mod integration {
use super::*;
use crate::testutils;
use assert_fs::prelude::*;
use predicates::prelude::*;
#[test]
fn test_with_stdin() {
let testdir = testutils::prepare_testdir_empty();
let expected_str = "hi there";
stdioutils::test_stdin_write(expected_str);
let args = CursorArgs{direction: None};
do_cursor(&args).unwrap();
testdir.child(".khaleesi/cursor").assert(expected_str);
}
#[test]
fn test_cursor_sequence_move_next() {
let testdir = testutils::prepare_testdir("testdir_with_seq_and_cursor");
let args = CursorArgs{direction: Some(CursorDirection::next)};
do_cursor(&args).unwrap();
let out = "1182988800 rfc_multi_day_allday.ics";
let predicate = predicate::str::similar(out);
testdir.child(".khaleesi/cursor").assert(predicate);
}
#[test]
fn test_cursor_sequence_move_prev_at_end() {
let testdir = testutils::prepare_testdir("testdir_with_seq_and_cursor");
let args = CursorArgs{direction: Some(CursorDirection::prev)};
do_cursor(&args).unwrap();
let out = "1544740200 twodaysacrossbuckets.ics\n";
let predicate = predicate::str::similar(out);
testdir.child(".khaleesi/cursor").assert(predicate);
}
#[test]
fn test_with_stdin_linebreak() {
let _testdir = testutils::prepare_testdir_empty();
let expected_str = "hi\nthere";
stdioutils::test_stdin_write(expected_str);
let args = CursorArgs {direction: None};
let result = do_cursor(&args);
assert!(result.is_err());
//testdir.child(".khaleesi/cursor").assert(expected_str);
}
#[test]
fn test_no_stdin() {
let testdir = testutils::prepare_testdir("testdir_with_cursor");
let args = CursorArgs {direction: None};
do_cursor(&args).unwrap();
let out = stdioutils::test_stdout_clear();
let predicate = predicate::str::similar(out);
testdir.child(".khaleesi/cursor").assert(predicate);
}
}
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