import type { ArtifactResolver } from "../../../types/artifact.js";
import type { DeploymentParameters } from "../../../types/deploy.js";
import type { EncodeFunctionCallFuture } from "../../../types/module.js";

import { HardhatError } from "@nomicfoundation/hardhat-errors";

import {
  isArtifactType,
  isModuleParameterRuntimeValue,
} from "../../../type-guards.js";
import { validateArtifactFunction } from "../../execution/abi.js";
import {
  filterToAccountRuntimeValues,
  resolvePotentialModuleParameterValueFrom,
  retrieveNestedRuntimeValues,
  validateAccountRuntimeValue,
} from "../utils.js";

export async function validateNamedEncodeFunctionCall(
  future: EncodeFunctionCallFuture<string, string>,
  artifactLoader: ArtifactResolver,
  deploymentParameters: DeploymentParameters,
  accounts: string[],
): Promise<string[]> {
  const errors: HardhatError[] = [];

  /* stage one */

  const artifact =
    "artifact" in future.contract
      ? future.contract.artifact
      : await artifactLoader.loadArtifact(future.contract.contractName);

  if (!isArtifactType(artifact)) {
    errors.push(
      new HardhatError(
        HardhatError.ERRORS.IGNITION.VALIDATION.INVALID_ARTIFACT,
        {
          contractName: future.contract.contractName,
        },
      ),
    );
  } else {
    errors.push(
      ...validateArtifactFunction(
        artifact,
        future.contract.contractName,
        future.functionName,
        future.args,
        false,
      ),
    );
  }

  /* stage two */

  const runtimeValues = retrieveNestedRuntimeValues(future.args);
  const moduleParams = runtimeValues.filter(isModuleParameterRuntimeValue);
  const accountParams = [...filterToAccountRuntimeValues(runtimeValues)];

  errors.push(
    ...accountParams.flatMap((arv) =>
      validateAccountRuntimeValue(arv, accounts),
    ),
  );

  const missingParams = moduleParams.filter(
    (param) =>
      resolvePotentialModuleParameterValueFrom(deploymentParameters, param) ===
      undefined,
  );

  if (missingParams.length > 0) {
    errors.push(
      new HardhatError(
        HardhatError.ERRORS.IGNITION.VALIDATION.MISSING_MODULE_PARAMETER,
        {
          name: missingParams[0].name,
        },
      ),
    );
  }

  return errors.map((e) => e.message);
}