<?php

use Illuminate\Database\Eloquent\Collection;

class ThreeYearPlanController extends \BaseController
{

  public function threeYearsReport()
  {
    $user_id = auth::user()->id;

    // el ID de los semestres que el usuario tiene seleccionado.
    $semesters_ids = Session::get('semesters_ids');
    // buscar informacion de los semestres seleccionados
    $semesters = Semester::whereIn('id', $semesters_ids)->get();

    $title = "Three Year Plans Planning";
    $outcomes = Outcome::orderBy('name', 'ASC')
      ->where('deactivation_date', '=', '0000-00-00')
      ->orWhereNull('deactivation_date')
      ->get();
    $typs = DB::table('three_year_plan')
      ->orderBy('year_start', 'asc')
      ->get();
    $criteria = Criterion::withTrashed()->orderBy('name', 'ASC')->get();
    $program_id = DB::table('program_user')
      ->where('user_id', $user_id)
      ->select('program_id')
      ->get();
    $program_id = $program_id[0]->program_id;

    // se annadio la nueva variable
    return View::make('global.view-three-year-plan', compact('title', 'outcomes', 'typs', 'criteria', 'semesters', 'program_id'));
  }


  public function fetchThreeYears()
  {
    $id = Input::get('id');

    $semesters = DB::table('typ_semesters')
      ->join('semesters', 'semesters.id', '=', 'typ_semesters.semester_id')
      ->where('typ_semesters.typ_id', $id)
      // ->select('semesters.*')
      ->orderBy('typ_semesters.semester_id', 'asc')
      ->get();
    $typs = DB::table('three_year_plan')
      ->where('id', $id)
      ->orderBy('year_start', 'asc')
      ->get();

    $typs  = $typs[0];
    $typs->semesters = $semesters;

    return array(
      'typ' => $typs,
    );
  }

  public function update_typ_outcomes_semesters()
  {
    $outcomeSemesterArray = json_decode(Input::get('outcomeSemesterArray'), true);
    $typ_id = Input::get('typ_id');

    $user_id = auth::user()->id;
    $program_id = DB::table('program_user')
      ->where('user_id', $user_id)
      ->select('program_id')
      ->get();
    $program_id = $program_id[0]->program_id;


    $result = DB::table('typ_program')
      ->where('three_year_plan_id', $typ_id)
      ->where('program_id', $program_id)
      ->get();

    // create the relation if it doesnt exist
    if (count($result) == 0) {
      $typ_program_id = DB::table('typ_program')->insertGetId(
        array(
          'three_year_plan_id' => $typ_id,
          'program_id' => $program_id
        )
      );
    } else {
      $typ_program_id = $result[0]->id;
    }


    //go through array
    foreach ($outcomeSemesterArray as $outcome_semester) {

      // foreach of the 6 semesters
      foreach ($outcome_semester["semesters"] as $semester) {
        $insert = $semester[1];

        $outcome_id = explode("-sem", $semester[0])[0];

        $semester_code = explode("-sem", $semester[0])[1];
        $result = DB::table('semesters')
          ->where('code', $semester_code)
          ->select('id')
          ->get();
        if (count($result) == 0) {
          continue;
        }
        $semester_id = $result[0]->id;

        // verify if it exists
        $result = DB::table('typ_semester_outcome')
          ->where('typ_program_id', $typ_program_id)
          ->where('semester_id', $semester_id)
          ->where('outcome_id', $outcome_id)
          ->get();

        // if true, it should get inserted
        if ($insert == true) {
          // if == 0, then insert
          if (count($result) == 0) {
            $_ = DB::table('typ_semester_outcome')->insertGetId(
              array(
                'typ_program_id' => $typ_program_id,
                'semester_id' => $semester_id,
                'outcome_id' => $outcome_id
              )
            );
          }
          //if exists, then do nothing

        }
        // if false, it should get deleted
        else { //value == false

          // if == 0, it doesnt exist. we do nothing
          if (count($result) == 0) {
            //pass
          }
          //if exists, then do nothing
          else {
            DB::table('typ_semester_outcome')
              ->where('typ_program_id', $typ_program_id)
              ->where('semester_id', $semester_id)
              ->where('outcome_id', $outcome_id)
              ->delete();
          }
        }
      }
    }
    return;
  }

  public function lookup_typ_semester_outcome()
  {
    $box_value = array();

    $info = Input::get('info');

    foreach ($info as $values) {
      $outcome_id = $values[0];
      $semester_code = $values[1];
      $program_id = $values[2];
      $box_id = $values[3];
      $typ_id = $values[4];

      //buscar id del typ
      $result = DB::table('typ_program')
        ->where('three_year_plan_id', $typ_id)
        ->where('program_id', $program_id)
        ->get();
      $typ_program_id = $result[0]->id;

      // buscar si existe el outcome_semester
      $result = DB::table('typ_semester_outcome')
        ->join('semesters', 'semesters.id', '=', 'typ_semester_outcome.semester_id')
        ->where('typ_program_id', $typ_program_id)
        ->where('semesters.code', $semester_code)
        ->where('outcome_id', $outcome_id)
        ->get();

      // if it doesnt exist
      if (count($result) == 0) {
        array_push($box_value, array($box_id, 0));
      } else {
        array_push($box_value, array($box_id, 1));
      }
    }
    return array(
      'box_value' => ($box_value)
    );
  }

  public function section2_on_change()
  {
    $typ_id = Input::get('typ_id');
    // typ_id: (typ_id),
    $outcome_id = Input::get('outcome_id');
    // outcome_id: (outcome_id),
    $semester_id = Input::get('semester_id');
    // semester_id: (semester_id),
    $previous_objective_id = Input::get('previous_objective_id');
    // previous_objective_id: (previous_objective_id),
    $new_objective_id = Input::get('new_objective_id');
    // new_objective_id: (new_objective_id)

    // get program_id
    $user_id = auth::user()->id;
    $program_id = DB::table('program_user')
      ->where('user_id', $user_id)
      ->select('program_id')
      ->get();
    $program_id = $program_id[0]->program_id;

    // get typ_program_id
    $result = DB::table('typ_program')
      ->where('three_year_plan_id', $typ_id)
      ->where('program_id', $program_id)
      ->get();
    $typ_program_id = $result[0]->id;

    // get typ_semester_outcome_id
    $result = DB::table('typ_semester_outcome')
      ->where('typ_program_id', $typ_program_id)
      ->where('semester_id', $semester_id)
      ->where('outcome_id', $outcome_id)
      ->get();
    $typ_semester_outcome_id = $result[0]->id;

    //delete old objective relation if it exists
    if ($previous_objective_id != 'nothing_selected') {
      $result = DB::table('typ_semester_objectives')
        ->where('typ_semester_outcome_id', $typ_semester_outcome_id)
        ->where('objective_id', $previous_objective_id)
        ->get();
      if (count($result) != 0) {
        DB::table('typ_semester_objectives')
          ->where('typ_semester_outcome_id', $typ_semester_outcome_id)
          ->where('objective_id', $previous_objective_id)
          ->delete();
      }
    }

    //create new objective relation
    if ($new_objective_id != 'nothing_selected') {
      $result = DB::table('typ_semester_objectives')
        ->where('typ_semester_outcome_id', $typ_semester_outcome_id)
        ->where('objective_id', $new_objective_id)
        ->get();
      if (count($result) == 0) {
        $_ = DB::table('typ_semester_objectives')->insertGetId(
          array(
            'typ_semester_outcome_id' => $typ_semester_outcome_id,
            'objective_id' => $new_objective_id
          )
        );
      }
    }
    return 'update was succes';
  }

  public function section2_arrive()
  {
    // get program_id
    $user_id = auth::user()->id;
    $program_id = DB::table('program_user')
      ->where('user_id', $user_id)
      ->select('program_id')
      ->get();
    $program_id = $program_id[0]->program_id;

    // get typ_program_id
    $typ_id = Input::get('typ_id');
    $result = DB::table('typ_program')
      ->where('three_year_plan_id', $typ_id)
      ->where('program_id', $program_id)
      ->get();
    $typ_program_id = $result[0]->id;


    //search selected outcomes,semesters and get their objectives
    $selected_outcomes = DB::table('typ_semester_outcome')
      ->join('outcomes', 'outcomes.id', '=', 'typ_semester_outcome.outcome_id')
      ->where('typ_semester_outcome.typ_program_id', $typ_program_id)
      ->distinct('typ_semester_outcome.outcome_id')
      ->select('typ_semester_outcome.outcome_id')
      ->orderBy('outcomes.name', 'asc')
      ->get();

    $selected_objectives_array = array();
    $outcomes_info_array = array();
    // $objectives_info_array = array();
    $semesters_array = array();

    $info = array();
    foreach ($selected_outcomes as $outcome) {


      $outcome_id = $outcome->outcome_id;
      $result_outcomes = DB::table('outcomes')
        ->where('outcomes.id', $outcome_id)
        ->orderBy('outcomes.name', 'asc')
        ->get();

      foreach ($result_outcomes as $outcome_) {

        $result_semesters = DB::table('typ_semester_outcome')
          ->join('semesters', 'semesters.id', '=', 'typ_semester_outcome.semester_id')
          ->where('typ_semester_outcome.typ_program_id', $typ_program_id)
          ->where('typ_semester_outcome.outcome_id', $outcome_->id)
          ->select('typ_semester_outcome.id', 'typ_semester_outcome.semester_id', 'semesters.code', 'semesters.name')
          ->get();
        // buscar info sobre selected_semsters
        $outcome_->selected_semesters = array();
        foreach ($result_semesters as $semesters_) {
          $typ_semester_outcome_id = $semesters_->id;

          // lookup previusly selected objectives
          $result_objectives = DB::table('typ_semester_objectives')
            ->join('objectives', 'objectives.id', '=', 'typ_semester_objectives.objective_id')
            ->where('typ_semester_objectives.typ_semester_outcome_id', $typ_semester_outcome_id)
            ->orderBy('typ_semester_objectives.id', 'asc')
            ->get();

          $semesters_->selected_objectives = array();
          foreach ($result_objectives as $objectives_) {

            array_push($semesters_->selected_objectives, $objectives_);
          }

          // lookup available objectives
          $result_objectives = DB::table('objective_outcome')
            ->join('outcomes', 'outcomes.id', '=', 'objective_outcome.outcome_id')
            ->join('objectives', 'objectives.id', '=', 'objective_outcome.objective_id')
            ->join('objective_program', 'objective_program.objective_id', '=', 'objectives.id')
            ->where('objective_program.program_id', $program_id)
            ->where('objective_outcome.outcome_id', $outcome_id)
            ->select('objectives.id', 'objectives.text', 'outcomes.name as outcome_name')
            ->orderBy('objectives.text', 'asc')
            ->get();

          $semesters_->available_objectives = array();
          foreach ($result_objectives as $objectives_) {

            array_push($semesters_->available_objectives, $objectives_);
          }

          array_push($outcome_->selected_semesters, $semesters_);
        }
        array_push($info, $outcome_);
      }
    }
    return $info;
  }

  public function section3_arrive()
  {
    // get program_id
    $user_id = auth::user()->id;
    $program_id = DB::table('program_user')
      ->where('user_id', $user_id)
      ->select('program_id')
      ->get();
    $program_id = $program_id[0]->program_id;

    // get typ_program_id
    $typ_id = Input::get('typ_id');
    $result = DB::table('typ_program')
      ->where('three_year_plan_id', $typ_id)
      ->where('program_id', $program_id)
      ->get();
    $typ_program_id = $result[0]->id;


    //search selected outcomes,semesters and get their objectives
    $selected_outcomes = DB::table('typ_semester_outcome')
      ->join('outcomes', 'outcomes.id', '=', 'typ_semester_outcome.outcome_id')
      ->where('typ_semester_outcome.typ_program_id', $typ_program_id)
      ->distinct('typ_semester_outcome.outcome_id')
      ->select('typ_semester_outcome.outcome_id')
      ->orderBy('outcomes.name', 'asc')
      ->get();

    $selected_objectives_array = array();
    $outcomes_info_array = array();
    // $objectives_info_array = array();
    $semesters_array = array();

    $info = array();
    foreach ($selected_outcomes as $outcome) {


      $outcome_id = $outcome->outcome_id;
      $result_outcomes = DB::table('outcomes')
        ->where('outcomes.id', $outcome_id)
        ->get();

      foreach ($result_outcomes as $outcome_) {

        $result_semesters = DB::table('typ_semester_outcome')
          ->join('semesters', 'semesters.id', '=', 'typ_semester_outcome.semester_id')
          ->where('typ_semester_outcome.typ_program_id', $typ_program_id)
          ->where('typ_semester_outcome.outcome_id', $outcome_->id)
          ->select('typ_semester_outcome.id', 'typ_semester_outcome.semester_id', 'semesters.code', 'semesters.name')
          ->get();
        // buscar info sobre selected_semsters
        $outcome_->selected_semesters = array();
        foreach ($result_semesters as $semesters_) {
          $semester_id = $semesters_->semester_id;

          $typ_semester_outcome_id = $semesters_->id;
          $result_objectives = DB::table('typ_semester_objectives')
            ->join('objectives', 'objectives.id', '=', 'typ_semester_objectives.objective_id')
            ->where('typ_semester_objectives.typ_semester_outcome_id', $typ_semester_outcome_id)
            ->select('typ_semester_objectives.id as typ_semester_objectives_id', 'objectives.*', 'typ_semester_objectives.*')
            ->orderBy('typ_semester_objectives.id', 'asc')
            ->get();

          $semesters_->selected_objectives = array();
          foreach ($result_objectives as $objectives_) {
            $objective_id = $objectives_->objective_id;
            $program_id = $objectives_->program_id;
            $result_courses = DB::table('objective_program')
              ->join('objectives', 'objectives.id', '=', 'objective_program.objective_id')
              ->join('courses', 'courses.program_id', '=', 'objective_program.program_id')
              ->where('objective_program.objective_id', $objective_id)
              ->where('objective_program.program_id', $program_id)
              ->where('courses.semester_id', $semester_id)
              ->distinct('courses.name', 'courses.code')
              ->select('courses.id as course_id', 'courses.name', 'courses.code', 'objective_program.objective_id', 'objective_program.program_id')
              ->orderBy('courses.name', 'asc')
              ->groupBy('courses.name', 'courses.code')
              ->get();

            $objectives_->available_courses = array();
            foreach ($result_courses as $courses_) {
              array_push($objectives_->available_courses, $courses_);
            }

            // search for previusly selected courses
            $typ_semester_objective_id = $objectives_->typ_semester_objectives_id;
            $result_courses = DB::table('typ_semester_courses')
              ->join('courses', 'courses.id', '=', 'typ_semester_courses.course_id')
              ->where('typ_semester_courses.typ_semester_objective_id', $typ_semester_objective_id)
              ->select('courses.id as course_id', 'courses.*', 'typ_semester_courses.*')
              ->orderBy('courses.name', 'asc')
              ->get();

            $objectives_->selected_courses = array();
            foreach ($result_courses as $courses_) {
              array_push($objectives_->selected_courses, $courses_);
            }

            array_push($semesters_->selected_objectives, $objectives_);
          }

          array_push($outcome_->selected_semesters, $semesters_);
        }
        array_push($info, $outcome_);
      }
    }
    return $info;
  }


  public function section3_on_change()
  {
    $typ_id = Input::get('typ_id');
    // typ_id: (typ_id),
    $outcome_id = Input::get('outcome_id');
    // outcome_id: (outcome_id),
    $semester_id = Input::get('semester_id');
    // semester_id: (semester_id),
    $objective_id = Input::get('objective_id');
    // objective_id: (objective_id),
    $previous_course_id = Input::get('previous_course_id');
    // previous_course_id: (previous_course_id),
    $new_course_id = Input::get('new_course_id');
    // new_course_id: (new_course_id)

    // get program_id
    $user_id = auth::user()->id;
    $program_id = DB::table('program_user')
      ->where('user_id', $user_id)
      ->select('program_id')
      ->get();
    $program_id = $program_id[0]->program_id;

    // get typ_program_id
    $result = DB::table('typ_program')
      ->where('three_year_plan_id', $typ_id)
      ->where('program_id', $program_id)
      ->get();
    $typ_program_id = $result[0]->id;

    // get typ_semester_outcome_id
    $result = DB::table('typ_semester_outcome')
      ->where('typ_program_id', $typ_program_id)
      ->where('semester_id', $semester_id)
      ->where('outcome_id', $outcome_id)
      ->get();
    $typ_semester_outcome_id = $result[0]->id;

    // get typ_semester_objective_id
    $result = DB::table('typ_semester_objectives')
      ->where('typ_semester_outcome_id', $typ_semester_outcome_id)
      ->where('objective_id', $objective_id)
      ->get();
    $typ_semester_objective_id = $result[0]->id;

    //delete old objective relation if it exists
    if ($previous_course_id != 'nothing_selected') {
      $result = DB::table('typ_semester_courses')
        ->where('typ_semester_objective_id', $typ_semester_objective_id)
        ->where('course_id', $previous_course_id)
        ->get();
      if (count($result) != 0) {
        DB::table('typ_semester_courses')
          ->where('typ_semester_objective_id', $typ_semester_objective_id)
          ->where('course_id', $previous_course_id)
          ->delete();
      }
    }

    //create new objective relation
    if ($new_course_id != 'nothing_selected') {
      $result = DB::table('typ_semester_courses')
        ->where('typ_semester_objective_id', $typ_semester_objective_id)
        ->where('course_id', $new_course_id)
        ->get();
      if (count($result) == 0) {
        $_ = DB::table('typ_semester_courses')->insertGetId(
          array(
            'typ_semester_objective_id' => $typ_semester_objective_id,
            'course_id' => $new_course_id
          )
        );
      }
    }
    return 'update succes?';
  }

  public function createAnnualPlan($program_id)
  {
    $current_typ = DB::select("select * from three_year_plan where year_start <=" . date('Y') . " and year_end >=" . date('Y'))[0];
    $count = 0;
    $yearStartPlusOne = $current_typ->year_start + 1;
    $yearStart = $current_typ->year_start;
    while ($count < 3) {


      $firstSemester = DB::select("select * from semesters where name like 'First Semester {$yearStart}-{$yearStartPlusOne}'");

      $secondSemester = DB::select("select * from semesters where name like 'Second Semester {$yearStart}-{$yearStartPlusOne}'");
      if (count($firstSemester) && count($secondSemester)) {
        $query = DB::select("select * from annual_plans where semester_start ={$firstSemester[0]->id} and semester_end ={$secondSemester[0]->id} and program_id = {$program_id}");
        if (!count($query)) {
          DB::insert("insert into annual_plans (academic_year, semester_start, semester_end, program_id) values ('{$yearStart}-{$yearStartPlusOne}', {$firstSemester->id}, {$secondSemester->id}, {$program_id})");
        }
        $count++;
        $yearStart++;
        $yearStartPlusOne++;
      } else {
        $count++;
        $yearStart++;
        $yearStartPlusOne++;
        continue;
      }
    }
  }
}