////////////////////////////////////////////////////////////////////////////////
//
// Copyright 2006 - 2021, Tomas Babej, 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.
//
// https://www.opensource.org/licenses/mit-license.php
//
////////////////////////////////////////////////////////////////////////////////

#ifndef INCLUDED_TASK
#define INCLUDED_TASK

#include <Datetime.h>
#include <JSON.h>
#include <Table.h>
#include <stdio.h>
#include <taskchampion-cpp/lib.h>
#include <time.h>

#include <map>
#include <string>
#include <vector>

class Task {
 public:
  static std::string defaultProject;
  static std::string defaultDue;
  static std::string defaultScheduled;
  static bool searchCaseSensitive;
  static bool regex;
  static std::map<std::string, std::string> attributes;  // name -> type
  static std::map<std::string, float> coefficients;
  static std::map<std::string, std::vector<std::string>> customOrder;
  static float urgencyProjectCoefficient;
  static float urgencyActiveCoefficient;
  static float urgencyScheduledCoefficient;
  static float urgencyWaitingCoefficient;
  static float urgencyBlockedCoefficient;
  static float urgencyAnnotationsCoefficient;
  static float urgencyTagsCoefficient;
  static float urgencyDueCoefficient;
  static float urgencyBlockingCoefficient;
  static float urgencyAgeCoefficient;
  static float urgencyAgeMax;

 public:
  Task() = default;
  bool operator==(const Task&);
  bool operator!=(const Task&);
  Task(const std::string&);
  Task(const json::object*);
  Task(rust::Box<tc::TaskData>);

  void parse(const std::string&);
  std::string composeJSON(bool decorate = false) const;

  // Status values.
  enum status { pending, completed, deleted, recurring, waiting };

  // Date state values.
  enum dateState { dateNotDue, dateAfterToday, dateLaterToday, dateEarlierToday, dateBeforeToday };

  // Public data.
  int id{0};
  float urgency_value{0.0};
  bool recalc_urgency{true};
  bool is_blocked{false};
  bool is_blocking{false};
  int annotation_count{0};

  // Series of helper functions.
  static status textToStatus(const std::string&);
  static std::string statusToText(status);

  void setAsNow(const std::string&);
  bool has(const std::string&) const;
  std::vector<std::string> all() const;
  const std::string identifier(bool shortened = false) const;
  const std::string get(const std::string&) const;
  const std::string& get_ref(const std::string&) const;
  int get_int(const std::string&) const;
  unsigned long get_ulong(const std::string&) const;
  float get_float(const std::string&) const;
  time_t get_date(const std::string&) const;
  void set(const std::string&, const std::string&);
  void set(const std::string&, long long);
  void remove(const std::string&);

  bool is_empty() const;

#ifdef PRODUCT_TASKWARRIOR
  bool is_ready() const;
  bool is_due() const;
  bool is_dueyesterday() const;
  bool is_duetoday() const;
  bool is_duetomorrow() const;
  bool is_dueweek() const;
  bool is_duemonth() const;
  bool is_duequarter() const;
  bool is_dueyear() const;
  bool is_overdue() const;
  bool is_udaPresent() const;
  bool is_orphanPresent() const;

  static bool isTagAttr(const std::string&);
  static bool isDepAttr(const std::string&);
  static bool isAnnotationAttr(const std::string&);
#endif
  bool is_waiting() const;

  status getStatus() const;
  void setStatus(status);

#ifdef PRODUCT_TASKWARRIOR
  dateState getDateState(const std::string&) const;
#endif

  int getTagCount() const;
  bool hasTag(const std::string&) const;
  void addTag(const std::string&);
  void setTags(const std::vector<std::string>&);
  std::vector<std::string> getTags() const;
  void removeTag(const std::string&);

  int getAnnotationCount() const;
  bool hasAnnotations() const;
  std::map<std::string, std::string> getAnnotations() const;
  void setAnnotations(const std::map<std::string, std::string>&);
  void addAnnotation(const std::string&);
  void removeAnnotations();

#ifdef PRODUCT_TASKWARRIOR
  void addDependency(int);
#endif
  void addDependency(const std::string&);
#ifdef PRODUCT_TASKWARRIOR
  void removeDependency(int);
  void removeDependency(const std::string&);
  bool hasDependency(const std::string&) const;
  std::vector<int> getDependencyIDs() const;
  std::vector<std::string> getDependencyUUIDs() const;
  std::vector<Task> getBlockedTasks() const;
  std::vector<Task> getDependencyTasks() const;

  std::vector<std::string> getUDAOrphans() const;

  void substitute(const std::string&, const std::string&, const std::string&);
#endif

  void validate(bool applyDefault = true);

  float urgency_c() const;
  float urgency();

#ifdef PRODUCT_TASKWARRIOR
  enum modType { modReplace, modPrepend, modAppend, modAnnotate };
  void modify(modType, bool text_required = false);
#endif

  std::string diff(const Task& after) const;
  std::string diffForInfo(const Task& after, const std::string& dateformat, long& last_timestamp,
                          const long current_timestamp) const;
  Table diffForUndoSide(const Task& after) const;
  Table diffForUndoPatch(const Task& after, const Datetime& lastChange) const;

 private:
  int determineVersion(const std::string&);
  void parseJSON(const std::string&);
  void parseJSON(const json::object*);
  void parseTC(rust::Box<tc::TaskData>);
  void parseLegacy(const std::string&);
  void validate_before(const std::string&, const std::string&);
  const std::string encode(const std::string&) const;
  const std::string decode(const std::string&) const;
  const std::string tag2Attr(const std::string&) const;
  const std::string attr2Tag(const std::string&) const;
  const std::string dep2Attr(const std::string&) const;
  const std::string attr2Dep(const std::string&) const;
  void fixDependsAttribute();
  void fixTagsAttribute();

 protected:
  std::map<std::string, std::string> data{};

 public:
  float urgency_project() const;
  float urgency_active() const;
  float urgency_scheduled() const;
  float urgency_waiting() const;
  float urgency_blocked() const;
  float urgency_inherit() const;
  float urgency_annotations() const;
  float urgency_tags() const;
  float urgency_due() const;
  float urgency_blocking() const;
  float urgency_age() const;
};

#endif
////////////////////////////////////////////////////////////////////////////////