cmd: create/delete science

pkg/model/game/science.go

@@ -1,6 +1,9 @@
 package game
 
-import "github.com/google/uuid"
+import (
+	"github.com/google/uuid"
+	e "github.com/iliadenisov/galaxy/pkg/error"
+)
 
 type Science struct {
 	ID uuid.UUID `json:"id"`
@@ -19,3 +22,103 @@ type ScienceReport struct {
 	Shields float64 `json:"shields"`
 	Cargo   float64 `json:"cargo"`
 }
+
+func (g Game) Sciences(raceName string) ([]Science, error) {
+	raceID, err := g.hostRaceID(raceName)
+	if err != nil {
+		return nil, err
+	}
+	return g.sciencesInternal(raceID)
+}
+
+func (g Game) sciencesInternal(race uuid.UUID) ([]Science, error) {
+	for r := range g.Race {
+		if g.Race[r].ID == race {
+			return g.Race[r].Sciences, nil
+		}
+	}
+	return nil, e.NewGameStateError("Sciences: race %v not found", race)
+}
+
+func (g Game) DeleteScience(raceName, typeName string) error {
+	raceID, err := g.hostRaceID(raceName)
+	if err != nil {
+		return err
+	}
+	return g.deleteScienceInternal(raceID, typeName)
+}
+
+func (g Game) deleteScienceInternal(race uuid.UUID, name string) error {
+	for r := range g.Race {
+		if g.Race[r].ID == race {
+			for sc := range g.Race[r].Sciences {
+				if g.Race[r].Sciences[sc].Name == name {
+					for pl := range g.Map.Planet {
+						if g.Map.Planet[pl].Production.Production == ResearchScience &&
+							g.Map.Planet[pl].Production.SubjectID != nil &&
+							*g.Map.Planet[pl].Production.SubjectID == g.Race[r].Sciences[sc].ID {
+							return e.NewDeleteSciencePlanetProductionError(g.Map.Planet[pl].Name)
+						}
+					}
+					g.Race[r].Sciences = append(g.Race[r].Sciences[:sc], g.Race[r].Sciences[sc+1:]...)
+					return nil
+				}
+			}
+			return e.NewEntityTypeNameNotExistsError("science %w", name)
+		}
+	}
+	return e.NewGameStateError("DeleteScience: race %v not found", race)
+}
+
+func (g Game) CreateScience(raceName, typeName string, d, w, s, c float64) error {
+	raceID, err := g.hostRaceID(raceName)
+	if err != nil {
+		return err
+	}
+	return g.createScienceInternal(raceID, typeName, d, w, s, c)
+}
+
+func (g Game) createScienceInternal(race uuid.UUID, n string, d, w, s, c float64) error {
+	name, ok := validateTypeName(n)
+	if !ok {
+		return e.NewEntityTypeNameValidationError("%q", name)
+	}
+	if d < 0 {
+		return e.NewDriveValueError(d)
+	}
+	if w < 0 {
+		return e.NewWeaponsValueError(w)
+	}
+	if s < 0 {
+		return e.NewShieldsValueError(s)
+	}
+	if c < 0 {
+		return e.NewCargoValueError(c)
+	}
+	sum := d + w + s + c
+	if sum != 1 {
+		return e.NewScienceSumValuesError("D=%f W=%f S=%f C=%f sum=%f", d, w, s, c, sum)
+	}
+	for r := range g.Race {
+		if g.Race[r].ID == race {
+			for sc := range g.Race[r].Sciences {
+				if g.Race[r].Sciences[sc].Name == name {
+					return e.NewEntityTypeNameDuplicateError("science %w", g.Race[r].Sciences[sc].Name)
+				}
+			}
+			id := uuid.New()
+			g.Race[r].Sciences = append(g.Race[r].Sciences, Science{
+				ID: id,
+				ScienceReport: ScienceReport{
+					Name:    name,
+					Drive:   d,
+					Weapons: w,
+					Shields: s,
+					Cargo:   c,
+				},
+			})
+			return nil
+		}
+	}
+	return e.NewGameStateError("CreateScience: race %v not found", race)
+}