package storage

import (
	"strings"
	"time"

	"gardomatic.kleiax.de/internal/platform/validate"
)

// PlantLocationModelInterface persists assignments between plants and locations.
type PlantLocationModelInterface interface {
	Insert(gardenID int, plantLocation PlantLocation) (PlantLocation, error)
	Get(gardenID, id int) (PlantLocation, error)
	GetAllForPlant(gardenID, plantID int) ([]PlantLocation, error)
	GetAllForLocation(gardenID, locationID int) ([]PlantLocation, error)
	Update(gardenID int, plantLocation PlantLocation) (PlantLocation, error)
	Delete(gardenID, id int) error
}

// PlantLocation records where and when a quantity of plants was planted.
type PlantLocation struct {
	ID         int        `json:"id"`
	PlantID    int        `json:"plant_id"`
	LocationID int        `json:"location_id"`
	Quantity   int        `json:"quantity"`
	PlantedAt  *time.Time `json:"planted_at,omitempty"`
	RemovedAt  *time.Time `json:"removed_at,omitempty"`
	Notes      string     `json:"notes"`
	CreatedAt  time.Time  `json:"created_at"`
	Version    int        `json:"version"`
}

// ValidatePlantLocation applies persistence-independent assignment validation rules.
func ValidatePlantLocation(v *validate.Validator, assignment PlantLocation) {
	v.Check(assignment.PlantID > 0, "plant_id", "must be a positive integer")
	v.Check(assignment.LocationID > 0, "location_id", "must be a positive integer")
	v.Check(assignment.Quantity > 0, "quantity", "must be greater than zero")
	v.Check(len(strings.TrimSpace(assignment.Notes)) <= 10_000, "notes", "must not be more than 10000 bytes long")
	if assignment.PlantedAt != nil && assignment.RemovedAt != nil {
		v.Check(!assignment.RemovedAt.Before(*assignment.PlantedAt), "removed_at", "must not be before planted_at")
	}
}