Ilia Denisov
86 lines
1.7 KiB
Go
86 lines
1.7 KiB
Go
package controller
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import (
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"fmt"
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"github.com/iliadenisov/galaxy/internal/model/game"
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"github.com/iliadenisov/galaxy/internal/repo"
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)
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type Repo interface {
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// Lock must be called before any repository operations
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Lock() error
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// Release must be called after first and only repository operation
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Release() error
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// SaveTurn stores just generated new turn
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SaveTurn(uint, *game.Game) error
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// SaveState stores current game state updated between turns
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SaveState(*game.Game) error
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// LoadState retrieves game current state with required lock acquisition
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LoadState() (*game.Game, error)
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// LoadStateSafe retrieves game current state without preliminary locking
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LoadStateSafe() (*game.Game, error)
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// SaveBattle stores
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SaveBattle(t uint, b *game.BattleReport) error
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}
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type Controller struct {
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Repo Repo
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Cache *Cache
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}
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type Param struct {
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StoragePath string
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}
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type Config func(*Param)
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func NewController(config Config) (*Controller, error) {
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c := &Param{
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StoragePath: ".",
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}
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if config != nil {
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config(c)
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}
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r, err := repo.NewFileRepo(c.StoragePath)
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if err != nil {
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return nil, err
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}
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return &Controller{
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Repo: r,
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}, nil
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}
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func NewRepoController(r Repo) *Controller {
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return &Controller{
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Repo: r,
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}
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}
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func (c *Controller) ExecuteState(consumer func(Repo)) error {
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if err := c.Repo.Lock(); err != nil {
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return fmt.Errorf("execute: lock failed: %s", err)
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}
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consumer(c.Repo)
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return c.Repo.Release()
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}
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func (c *Controller) ExecuteGame(consumer func(Repo, *game.Game)) error {
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if err := c.Repo.Lock(); err != nil {
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return fmt.Errorf("execute: lock failed: %s", err)
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}
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g, err := c.Repo.LoadState()
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if err != nil {
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return err
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}
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c.Cache = NewCache(g)
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consumer(c.Repo, g)
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return c.Repo.Release()
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}
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