use std::{char, collections::HashMap, fmt::Display};

use chrono::{NaiveTime, TimeDelta, Utc};

use crate::{errors::Error, DType};

checklines: bool,

/// A default timeout in num milliseconda, defaults to 1000 (1 second)

timeout: Option<u32>,

/// At what point is no match declared (0.0 = perfection, 1.0 = very loose).

match_threshold: f32,

/// How far to search for a match (0 = exact location, 1000+ = broad match).

/// end points of a delete need to match.

delete_threshold: f32,

/// Chunk size for context length.

}

impl Default for DiffMatchPatch {

Self {

checklines: true,

timeout: Some(1000),

match_threshold: 0.5,

match_distance: 1000,

match_max_bits: 32,

}

// returns the current patch margin

self.patch_margin

}

}

}

// Don't risk returning a suboptimal diff when we have unlimited time

self.timeout()?;

// Scores range from 6 (best) to 0 (worst)

#[inline]

fn cleanup_semantic_score<T: DType>(one: &[T], two: &[T]) -> u8 {

(c1, c2)

} else {

return 6;

// format!("+{encoded}")

[&[T::from_char('+')], &encoded[..], &[T::from_char('\t')]].concat()

}

}

})

.collect::<Vec<_>>()

data

}

let mut pointer = 0; // cursor to text

let mut diffs = vec![];

if token.is_empty() {

continue;

}

let opcode = token.first();

let param = &token[1..];

diffs.push(Diff::insert(&param));

if n < 0 {

return Err(crate::errors::Error::InvalidInput);

}

let txt = &old[pointer..new_pointer];

pointer = new_pointer;

diffs.push(Diff::equal(txt))

} else {

diffs.push(Diff::delete(txt))

.concat()

}

pub fn diff_text_new<T: DType>(diffs: &[Diff<T>]) -> Vec<T> {

diffs

.iter()

length2: usize,

}

fn default() -> Self {

}

}

fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {

let coord1 = if self.length1 == 0 {

format!("{},0", self.start1)

};

let enc = T::percent_encode(diff.data());

segments.push(segment)

write!(f, "{}", segments.join(""))

}

}

pub fn diffs(&self) -> &[Diff<T>] {

&self.diffs[..]

}

pub type Patches<T> = Vec<Patch<T>>;

impl DiffMatchPatch {

let mut section = Vec::with_capacity(64);

let mut current_sect = 0;

return None;

}

let ol = splits.first()?;

old_line = T::to_string(ol).ok()?.parse::<usize>().ok()?;

}

}

2 => {

.split(|&p| p == T::from_char(','))

.collect::<Vec<_>>();

}

fn patch_add_padding<T: DType>(&self, patches: &mut Patches<T>) -> Vec<T> {

.filter_map(|c| c.as_char().map(|c| T::from_char(c)))

.collect::<Vec<_>>();

// Bump all the patches forward.

patches.iter_mut().for_each(|p| {

p.start1 += pad_len;

/// Create a new instance of the struct with default settings

/// # Example

/// ```

///

/// # fn main() -> Result<(), Error> {

/// let mut dmp = DiffMatchPatch::new();

/// // change some settings, e.g. set `line mode` optimization to `false` because you know you have a small text and not many lines

/// dmp.set_checklines(false);

/// // do the diffing

/// # Ok(())

/// # }

/// ```

/// Vec of changes (Diff).

/// # Example

/// ```

///

/// # fn main() -> Result<(), Error> {

/// let mut dmp = DiffMatchPatch::new();

/// // change some settings, e.g. set `line mode` optimization to `false` because you know you have a small text and not many lines

/// dmp.set_checklines(false);

/// // do the diffing

/// println!("{}", diffs.iter().map(|d| format!("d")).collect::<Vec<_>>().join("\n"));

/// // You should see the following output

/// // (Delete, F)

/// # Ok(())

/// # }

/// ```

}

/// A diff of two unrelated texts can be filled with coincidental matches.

/// For example, the diff of "mouse" and "sofas" is [(-1, "m"), (1, "s"), (0, "o"), (-1, "u"), (1, "fa"), (0, "s"), (-1, "e")].

/// While this is the optimum diff, it is difficult for humans to understand. Semantic cleanup rewrites the diff, expanding it into a more intelligible format.

/// Given two texts, or an already computed list of differences, return an array of patch objects.

/// The third form PatchInput::TextDiffs(...) is preferred, use it if you happen to have that data available, otherwise this function will compute the missing pieces.

/// TODO: add example

let mut diff_input;

let txt_old;

let (txt, diffs) = match input {

// No diffs provided, lets make our own

PatchInput::Texts(txt1, txt2) => {

if diff_input.len() > 2 {

Self::cleanup_semantic(&mut diff_input);

}

PatchInput::TextDiffs(txt, diffs) => {

txt_old = T::from_str(txt);

(txt_old, diffs)

};

self.patch_make_internal(&txt, diffs)

}

let txt_t = T::from_str(text);

let mut patches = vec![];

use crate::{

dmp::{Diff, HalfMatch, LineToChars},

};

#[test]

fn test_patch_add_padding() -> Result<(), Error> {

let dmp = DiffMatchPatch::default();

// Both edges full.

assert_eq!("@@ -0,0 +1,4 @@\n+test\n", dmp.patch_to_text(&patches));

dmp.patch_add_padding(&mut patches);

assert_eq!(

"@@ -1,8 +1,12 @@\n %01%02%03%04\n+test\n %01%02%03%04\n",

);

// Both edges partial.

assert_eq!(

"@@ -1,2 +1,6 @@\n X\n+test\n Y\n",

dmp.patch_to_text(&patches)

);

// Both edges none.

assert_eq!(

"@@ -1,8 +1,12 @@\n XXXX\n+test\n YYYY\n",

dmp.patch_to_text(&patches)

let dmp = DiffMatchPatch::default();

// Assumes that dmp.Match_MaxBits is 32.

"abcdefghijklmnopqrstuvwxyz01234567890",

"XabXcdXefXghXijXklXmnXopXqrXstXuvXwxXyzX01X23X45X67X89X0",

))?;

dmp.patch_to_text(&patches)

);

"abcdef1234567890123456789012345678901234567890123456789012345678901234567890uvwxyz",

"abcdefuvwxyz",

))?;

dmp.split_max(&mut patches);

assert_eq!(p2t, dmp.patch_to_text(&patches));

"1234567890123456789012345678901234567890123456789012345678901234567890",

"abc",

))?;

dmp.patch_to_text(&patches)

);

"abcdefghij , h : 0 , t : 1 abcdefghij , h : 0 , t : 1 abcdefghij , h : 0 , t : 1",

"abcdefghij , h : 1 , t : 1 abcdefghij , h : 1 , t : 1 abcdefghij , h : 0 , t : 1",

))?;