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invigilation.go
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/
invigilation.go
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package plexams
import (
"context"
"fmt"
"github.com/obcode/plexams.go/graph/model"
"github.com/rs/zerolog/log"
)
func (p *Plexams) GetInvigilatorInSlot(ctx context.Context, roomname string, day, time int) (*model.Teacher, error) {
return p.dbClient.GetInvigilatorInSlot(ctx, roomname, day, time)
}
func (p *Plexams) AddInvigilation(ctx context.Context, room string, day, slot, invigilatorID int) error {
invigilator, err := p.GetInvigilator(ctx, invigilatorID)
if err != nil {
return err
}
// check if (day,slot) needs a reserve, i.e. contains exams
examsInSlot, err := p.GetExamsInSlot(ctx, day, slot)
if err != nil {
return err
}
if len(examsInSlot) == 0 {
return fmt.Errorf("need no invigilation in slot without exams")
}
// check constraints
// excluded day
for _, excludedDay := range invigilator.Requirements.ExcludedDays {
if day == excludedDay {
return fmt.Errorf("cannot add invigilation on excluded day for %s", invigilator.Teacher.Shortname)
}
}
// no exam in same slot
exams, err := p.dbClient.PlannedExamsByMainExamer(ctx, invigilatorID) //nolint
if err != nil {
return err
}
for _, exam := range exams {
if exam.Slot.DayNumber == day && exam.Slot.SlotNumber == slot {
return fmt.Errorf("cannot add invigilation, %s has own exam in slot", invigilator.Teacher.Shortname)
}
}
// add to DB
return p.dbClient.AddInvigilation(context.Background(), room, day, slot, invigilatorID)
}
func (p *Plexams) GetInvigilator(ctx context.Context, invigilatorID int) (*model.Invigilator, error) {
invigilationTodos, err := p.dbClient.GetInvigilationTodos(ctx)
if err != nil {
log.Error().Err(err).Msg("cannot get invigilation todos")
return nil, err
}
// check if invigilatorID is invigilator
var invigilator *model.Invigilator
for _, knownInvigilator := range invigilationTodos.Invigilators {
if knownInvigilator.Teacher.ID == invigilatorID {
invigilator = knownInvigilator
break
}
}
if invigilator == nil {
return nil, fmt.Errorf("invigilator with id %d not found", invigilatorID)
}
return invigilator, nil
}