export type ApiKeyValidationResult =
	| {
			valid: true;
			userId: string;
			apiKeyId: string;
	  }
	| {
			valid: false;
			error: string;
	  };

export interface ApiKeyValidator {
	validate(apiKey: string): Promise<ApiKeyValidationResult>;
}

export class EdgeFunctionApiKeyValidator implements ApiKeyValidator {
	private supabaseUrl: string;
	private supabaseAnonKey: string;

	constructor(supabaseUrl: string, supabaseAnonKey: string) {
		this.supabaseUrl = supabaseUrl;
		this.supabaseAnonKey = supabaseAnonKey;
	}

	async validate(apiKey: string): Promise<ApiKeyValidationResult> {
		try {
			const response = await fetch(
				`${this.supabaseUrl}/functions/v1/validate-api-key`,
				{
					method: "POST",
					headers: {
						"Content-Type": "application/json",
						Authorization: `Bearer ${this.supabaseAnonKey}`,
					},
					body: JSON.stringify({ apiKey }),
				},
			);

			if (!response.ok) {
				const errorData = (await response.json()) as { error?: string };

				return { valid: false, error: errorData.error ?? "Validation failed" };
			}

			const data = (await response.json()) as {
				userId: string;
				apiKeyId: string;
			};

			return {
				valid: true,
				userId: data.userId,
				apiKeyId: data.apiKeyId,
			};
		} catch {
			return { valid: false, error: "Failed to validate API key" };
		}
	}
}