timewarrior/src/data.cpp

652 lines
19 KiB
C++

////////////////////////////////////////////////////////////////////////////////
//
// Copyright 2015 - 2016, Paul Beckingham, Federico Hernandez.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.
//
// http://www.opensource.org/licenses/mit-license.php
//
////////////////////////////////////////////////////////////////////////////////
#include <cmake.h>
#include <shared.h>
#include <Datetime.h>
#include <Duration.h>
#include <timew.h>
/*
#include <iostream> // TODO Remove.
*/
////////////////////////////////////////////////////////////////////////////////
// A filter is just another interval, containing start, end and tags.
//
// Supported interval forms:
// ["from"] <date> ["to"|"-" <date>]
// ["from"] <date> "for" <duration>
// <duration> ["before"|"after" <date>]
// <duration> "ago"
//
Interval getFilter (const CLI& cli)
{
Interval filter;
std::string start;
std::string end;
std::string duration;
std::vector <std::string> args;
for (auto& arg : cli._args)
{
if (arg.hasTag ("BINARY") ||
arg.hasTag ("CMD") ||
arg.hasTag ("EXT"))
continue;
if (arg.hasTag ("FILTER"))
{
auto canonical = arg.attribute ("canonical");
auto raw = arg.attribute ("raw");
if (arg.hasTag ("HINT"))
{
if (expandIntervalHint (canonical, start, end))
{
args.push_back ("<date>");
args.push_back ("-");
args.push_back ("<date>");
}
// Hints that are not expandable to a date range are ignored.
}
else if (arg._lextype == Lexer::Type::date)
{
if (start == "")
start = raw;
else if (end == "")
end = raw;
args.push_back ("<date>");
}
else if (arg._lextype == Lexer::Type::duration)
{
if (duration == "")
duration = raw;
args.push_back ("<duration>");
}
else if (arg.hasTag ("KEYWORD"))
{
args.push_back (raw);
}
else
{
filter.tag (raw);
}
}
}
Range range;
// <date>
if (args.size () == 1 &&
args[0] == "<date>")
{
range.start = Datetime (start);
range.end = Datetime ();
}
// from <date>
else if (args.size () == 2 &&
args[0] == "from" &&
args[1] == "<date>")
{
range.start = Datetime (start);
range.end = Datetime ();
}
// <date> to/- <date>
else if (args.size () == 3 &&
args[0] == "<date>" &&
(args[1] == "to" || args[1] == "-") &&
args[2] == "<date>")
{
range.start = Datetime (start);
range.end = Datetime (end);
}
// from/since <date> to/- <date>
else if (args.size () == 4 &&
args[0] == "from" &&
args[1] == "<date>" &&
(args[2] == "to" || args[2] == "-") &&
args[3] == "<date>")
{
range.start = Datetime (start);
range.end = Datetime (end);
}
// <date> for <duration>
else if (args.size () == 3 &&
args[0] == "<date>" &&
args[1] == "for" &&
args[2] == "<duration>")
{
range.start = Datetime (start);
range.end = Datetime (start) + Duration (duration).toTime_t ();
}
// from/since <date> for <duration>
else if (args.size () == 4 &&
(args[0] == "from" || args[0] == "since") &&
args[1] == "<date>" &&
args[2] == "for" &&
args[3] == "<duration>")
{
range.start = Datetime (start);
range.end = Datetime (start) + Duration (duration).toTime_t ();
}
// <duration> before <date>
else if (args.size () == 3 &&
args[0] == "<duration>" &&
args[1] == "before" &&
args[2] == "<date>")
{
range.start = Datetime (start) - Duration (duration).toTime_t ();
range.end = Datetime (start);
}
// <duration> after <date>
else if (args.size () == 3 &&
args[0] == "<duration>" &&
args[1] == "after" &&
args[2] == "<date>")
{
range.start = Datetime (start);
range.end = Datetime (start) + Duration (duration).toTime_t ();
}
// <duration> ago
else if (args.size () == 2 &&
args[0] == "<duration>" &&
args[1] == "ago")
{
range.start = Datetime () - Duration (duration).toTime_t ();
range.end = Datetime ();
}
// <duration>
else if (args.size () == 1 &&
args[0] == "<duration>")
{
range.start = Datetime () - Duration (duration).toTime_t ();
range.end = Datetime ();
}
// Unrecognized date range construct.
else if (args.size ())
{
throw std::string ("Unrecognized date range: '") + join (" ", args) + "'.";
}
filter.range = range;
/*
std::cout << "# getFilter:\n";
std::cout << "# " << filter.dump () << "\n";
*/
return filter;
}
////////////////////////////////////////////////////////////////////////////////
// Read rules and extract all holiday definitions. Create a Range for each
// one that spans from midnight to midnight.
std::vector <Range> getHolidays (const Rules& rules)
{
std::vector <Range> results;
for (auto& holiday : rules.all ("holidays."))
{
auto lastDot = holiday.rfind ('.');
if (lastDot != std::string::npos)
{
Range r;
Datetime d (holiday.substr (lastDot + 1), "Y_M_D");
r.start = d;
++d;
r.end = d;
results.push_back (r);
}
}
/*
std::cout << "# getHolidays:\n";
for (auto& h : results)
std::cout << "# " << h.dump () << "\n";
*/
return results;
}
////////////////////////////////////////////////////////////////////////////////
// [1] Read holiday definitions from the rules, extract their dates and create
// a set of Range from them.
// [2] For 'exc day ...' exclusions, separate into daysOn and daysOff sets,
// based on whether the exclusion is additive.
// [3] Treat daysOff as additional holidays.
// [4] Subtract daysOn from the set of holidays.
// [5] Take all the 'exc <dayOfWeek> ...' exclusions and expand them into
// concrete ranges within the overall range, adding them to the results.
//
// The result is the complete set of untrackable time that lies within the
// input range. This will be a set of nights, weekends, holidays and lunchtimes.
std::vector <Range> getAllExclusions (
const Rules& rules,
const Range& range)
{
// Start with the set of all holidays, intersected with range.
std::vector <Range> results;
results = addRanges (range, results, getHolidays (rules));
auto exclusions = getExclusions (rules);
// Find exclusions 'exc day on <date>' and remove from holidays.
// Find exlcusions 'exc day off <date>' and add to holidays.
std::vector <Range> daysOn;
std::vector <Range> daysOff;
for (auto& exclusion : exclusions)
{
if (exclusion.tokens ()[1] == "day")
{
if (exclusion.additive ())
for (auto& r : exclusion.ranges (range))
daysOn.push_back (r);
else
for (auto& r : exclusion.ranges (range))
daysOff.push_back (r);
}
}
// daysOff are combined with existing holidays.
results = addRanges (range, results, daysOff);
// daysOn are subtracted from the existing holidays.
results = subtractRanges (range, results, daysOn);
// Expand all exclusions that are not 'exc day ...' into excluded ranges that
// overlage with range.
std::vector <Range> exclusionRanges;
for (auto& exclusion : exclusions)
if (exclusion.tokens ()[1] != "day")
for (auto& r : exclusion.ranges (range))
exclusionRanges.push_back (r);
/*
auto all = addRanges (range, results, exclusionRanges);
std::cout << "# getAllExclusions:\n";
for (auto& r : all)
std::cout << "# " << r.dump () << "\n";
return all;
*/
return addRanges (range, results, exclusionRanges);
}
////////////////////////////////////////////////////////////////////////////////
std::vector <Exclusion> getExclusions (const Rules& rules)
{
// Add exclusions from configuration.
std::vector <Exclusion> all;
for (auto& name : rules.all ("exclusions."))
all.push_back (Exclusion (lowerCase (name), rules.get (name)));
/*
std::cout << "# getExclusions:\n";
for (auto& e : all)
std::cout << "# " << e.dump () << "\n";
*/
return all;
}
////////////////////////////////////////////////////////////////////////////////
std::vector <Interval> getAllInclusions (Database& database)
{
std::vector <Interval> all;
for (auto& line : database.allLines ())
{
Interval i;
i.initialize (line);
all.push_back (i);
}
/*
std::cout << "# getAllInclusions:\n";
for (auto& i : all)
std::cout << "# " << i.dump () << "\n";
*/
return all;
}
////////////////////////////////////////////////////////////////////////////////
std::vector <Interval> subset (
const Interval& filter,
const std::vector <Interval>& intervals)
{
std::vector <Interval> all;
for (auto& interval : intervals)
if (matchesFilter (interval, filter))
all.push_back (interval);
/*
std::cout << "# subset (filter intervals):\n";
for (auto& i : all)
std::cout << "# " << i.dump () << "\n";
*/
return all;
}
////////////////////////////////////////////////////////////////////////////////
std::vector <Range> subset (
const Range& range,
const std::vector <Range>& ranges)
{
std::vector <Range> all;
for (auto& r : ranges)
if (range.overlap (r))
all.push_back (r);
/*
std::cout << "# subset (ranges):\n";
for (auto& r : all)
std::cout << "# " << r.dump () << "\n";
*/
return all;
}
////////////////////////////////////////////////////////////////////////////////
std::vector <Interval> subset (
const Range& range,
const std::vector <Interval>& intervals)
{
std::vector <Interval> all;
for (auto& interval : intervals)
if (range.overlap (interval.range))
all.push_back (interval);
/*
std::cout << "# subset (intervals):\n";
for (auto& i : all)
std::cout << "# " << i.dump () << "\n";
*/
return all;
}
////////////////////////////////////////////////////////////////////////////////
std::vector <Interval> collapse (
const Interval& interval,
const std::vector <Range>& exclusions)
{
std::vector <Interval> all;
// Start with a single range from the interval, from which to subtract.
std::vector <Range> pieces {interval.range};
for (auto& exclusion : exclusions)
{
std::vector <Range> split_pieces;
for (auto& piece : pieces)
{
// If the exclusion is entirely within the piece, then collapse.
if (exclusion.start > piece.start &&
(exclusion.end < piece.end ||
piece.end.toEpoch () == 0))
{
for (auto& smaller_piece : piece.subtract (exclusion))
split_pieces.push_back (smaller_piece);
}
// If the exclusion merely overlap the piece, do nothing. This is because
// tracked time start and end is not clipped, but recorded faithfully.
else
{
split_pieces.push_back (piece);
}
}
pieces = split_pieces;
}
// Return all the fragments as clipped intervals.
for (auto& piece : pieces)
all.push_back (clip (interval, piece));
/*
std::cout << "# results:\n";
for (auto& i : all)
std::cout << "# " << i.dump () << "\n";
*/
return all;
}
////////////////////////////////////////////////////////////////////////////////
// Subset both ranges and additions by limits, and combine.
std::vector <Range> addRanges (
const Range& limits,
const std::vector <Range>& ranges,
const std::vector <Range>& additions)
{
std::vector <Range> results;
for (auto& range : ranges)
if (limits.overlap (range))
results.push_back (range);
for (auto& addition : additions)
if (limits.overlap (addition))
results.push_back (addition);
/*
std::cout << "# addRange:\n";
for (auto& result : results)
std::cout << "# " << result.dump () << "\n";
*/
return results;
}
////////////////////////////////////////////////////////////////////////////////
// Subtract a set of Range from another set of Range, all within a defined
// range.
std::vector <Range> subtractRanges (
const Range& limits,
const std::vector <Range>& ranges,
const std::vector <Range>& subtractions)
{
if (! subtractions.size ())
return ranges;
std::vector <Range> results;
for (auto& r1 : ranges)
for (auto& r2 : subtractions)
for (auto& r3 : r1.subtract (r2))
results.push_back (limits.intersect (r3));
/*
std::cout << "# addRange:\n";
for (auto& result : results)
std::cout << "# " << result.dump () << "\n";
*/
return results;
}
////////////////////////////////////////////////////////////////////////////////
// From a set of intervals, find the earliest start and the latest end, and
// return these in a Range.
Range outerRange (const std::vector <Interval>& intervals)
{
Range outer;
for (auto& interval : intervals)
{
if (interval.range.start < outer.start || outer.start.toEpoch () == 0)
outer.start = interval.range.start;
// Deliberately mixed start/end.
if (interval.range.start > outer.end)
outer.end = interval.range.start;
if (interval.range.end > outer.end)
outer.end = interval.range.end;
if (! interval.range.ended ())
outer.end = Datetime ();
}
/*
std::cout << "# outerRange " << outer.dump () << "\n";
*/
return outer;
}
////////////////////////////////////////////////////////////////////////////////
// An interval matches a filter interval if the start/end overlaps, and all
// filter interval tags are found in the interval.
//
// [1] interval.range.end.toEpoch () == 0
// [2] interval.range.end > filter.range.start
// [3] filter.range.end.toEpoch () == 0
// [4] interval.range.start < filter.range.end
//
// Match: (1 || 2) && (3 || 4)
// filter closed [--------) 1 2 3 4 5 6 result
// --------------------------------------------------------------------------
// A [--------) . . 0 0 0 1 0 0 0
// B [--------) . 0 1 0 1 1 1 1
// C . [----) . 0 1 0 1 1 1 1
// D . [--------) 0 1 0 1 1 1 1
// E . . [--------) 0 1 0 0 1 0 0
// F [-------------) 0 1 0 1 1 1 1
// G [... . 1 0 0 1 1 1 1
// H . [... . 1 0 0 1 1 1 1
// I . . [... 1 0 0 0 1 0 0
//
//
//
// filter open [... 1 2 3 4 5 6 result
// --------------------------------------------------------------------------
// A [--------) . 0 0 1 0 0 1 0
// B [--------) 0 1 1 0 1 1 1
// C . [----) 0 1 1 0 1 1 1
// D . [--------) 0 1 1 0 1 1 1
// E . [--------) 0 1 1 0 1 1 1
// F [-------------) 0 1 1 0 1 1 1
// G [... 1 0 1 0 1 1 1
// H . [... 1 0 1 0 1 1 1
// I . [... 1 0 1 0 1 1 1
//
bool matchesFilter (const Interval& interval, const Interval& filter)
{
if ((filter.range.start.toEpoch () == 0 &&
filter.range.end.toEpoch () == 0)
||
((interval.range.end.toEpoch () == 0 || interval.range.end > filter.range.start) &&
(filter.range.end.toEpoch () == 0 || interval.range.start < filter.range.end)))
{
for (auto& tag : filter.tags ())
if (! interval.hasTag (tag))
return false;
return true;
}
return false;
}
////////////////////////////////////////////////////////////////////////////////
// Take an interval and clip it to the range.
Interval clip (const Interval& interval, const Range& range)
{
if (! range.started ())
return interval;
Interval clipped {interval};
clipped.range = clipped.range.intersect (range);
return clipped;
}
////////////////////////////////////////////////////////////////////////////////
std::vector <Interval> getTrackedIntervals (
Database& database,
const Rules& rules,
Interval& filter)
{
auto inclusions = getAllInclusions (database);
// Exclusions are only usable within a range, so if no filter range exists,
// determine the outermost range of the inclusions, ie:
//
// [earliest start, latest end)
//
// Avoid assigning a zero-width range - leave it unstarted instead.
if (! filter.range.started ())
{
auto outer = outerRange (inclusions);
if (outer.total ())
filter.range = outer;
}
// Get the set of expanded exclusions that overlap the range defined by the
// timeline. If no range is defined, derive it from the set of all data.
auto exclusions = getAllExclusions (rules, filter.range);
std::vector <Interval> intervals;
for (auto& inclusion : subset (filter, inclusions))
for (auto& interval : collapse (clip (inclusion, filter.range), exclusions))
intervals.push_back (interval);
return intervals;
}
////////////////////////////////////////////////////////////////////////////////
// Untracked time is that which is not excluded, and not filled. Gaps.
std::vector <Range> getUntrackedRanges (
const Rules& rules)
{
std::vector <Range> gaps;
// Get the set of expanded exclusions that overlap the range defined by the
// timeline. If no range is defined, derive it from the set of all data.
/*
auto exclusions = getExcludedRanges (rules);
*/
// TODO subtract all exclusions
// TODO subtract all inclusions
return gaps;
}
////////////////////////////////////////////////////////////////////////////////
Interval getLatestInterval (Database& database)
{
Interval i;
auto lastLine = database.lastLine ();
if (lastLine != "")
i.initialize (lastLine);
return i;
}
////////////////////////////////////////////////////////////////////////////////