type Provider<T> = (manager: DependencyManager) => Promise<T> | T;

type ClassType<T> = new () => T;

// deno-lint-ignore no-explicit-any
type ModuleIdentifier = any;

type Modules = Map<ModuleIdentifier, {
  // deno-lint-ignore no-explicit-any
  provider: Provider<any>;
  // deno-lint-ignore no-explicit-any
  instance?: any;
}>;

export class DependencyManager {
  private modules: Modules = new Map();
  private resolving: Set<ModuleIdentifier> = new Set();

  // Enregistrer un module avec son initialisateur
  register<T>(identifier: ModuleIdentifier, provider: Provider<T>): void {
    if (this.modules.has(identifier)) {
      throw new Error(`Module ${identifier} is already registered.`);
    }
    this.modules.set(identifier, { provider });
  }

  // Résoudre un module et ses dépendances
  async resolve<T>(identifier: ClassType<T>): Promise<T>;
  async resolve<T>(identifier: ModuleIdentifier): Promise<T>;
  async resolve(identifier: ModuleIdentifier) {
    const module = this.modules.get(identifier);
    if (!module) {
      throw new Error(`Module ${identifier} is not registered.`);
    }

    if (module.instance) {
      return module.instance;
    }

    if (this.resolving.has(identifier)) {
      throw new Error(`Circular dependency detected for module ${identifier}.`);
    }

    this.resolving.add(identifier);

    try {
      module.instance = await module.provider(this);
      return module.instance;
    } finally {
      this.resolving.delete(identifier);
    }
  }
}