import { isValidEvenementFamille } from "./EvenementFamille";
import { Famille, isExResistant, isResistant } from "./Famille";

export function checkDataConsistency(families: Famille[]): ConsistencyReport {
  const reports = families.map((family) => {
    return checkFamilyDataConsistency(family);
  });
  return {
    errors: reports.flatMap((r) => r.errors),
    warnings: reports.flatMap((r) => r.warnings),
  };
}

export type ConsistencyReport = {
  warnings: ConsistencyIssue[];
  errors: ConsistencyIssue[];
};
export type ConsistencyIssue = {
  issueType: string;
  familyId: string;
};
function checkFamilyDataConsistency(family: Famille): ConsistencyReport {
  const consistencyErrors: ConsistencyIssue[] = [];
  const consistencyWarnings: ConsistencyIssue[] = [];

  if (family.Statut === "Résistant.e") {
    if (family.Integration === null) {
      consistencyErrors.push({
        familyId: family.Titre,
        issueType: "Résistant.e without startResistant",
      });
    }
    if (family.Sortie !== null) {
      consistencyErrors.push({
        familyId: family.Titre,
        issueType: "Résistant.e with endResistant!!",
      });
    }
  } else if (family.Statut === "Ex résistant·e·s") {
    if (family.Integration === null) {
      consistencyErrors.push({
        familyId: family.Titre,
        issueType: "Ex résistant.e.s without startResistant",
      });
    }
    if (family.Sortie === null) {
      consistencyErrors.push({
        familyId: family.Titre,
        issueType: "Ex résistant.e.s without endResistant",
      });
    }
    if (family.Integration! > family.Sortie!) {
      consistencyErrors.push({
        familyId: family.Titre,
        issueType: "startResistsant > endResistant ",
      });
    }
  }
  if (
    (isResistant(family) || isExResistant(family)) &&
    family.Integration !== null
  ) {
    const miseEnDemeureBeforeInteg =
      family.Evenements.find(
        (e) =>
          e.Type === "Mise en demeure de scolarisation" &&
          (e.Date === null || e.Date < family.Integration!)
      ) !== undefined;
    if (
      miseEnDemeureBeforeInteg &&
      family.ContexteEntree !== "Après mise en demeure"
    ) {
      consistencyWarnings.push({
        familyId: family.Titre,
        issueType: `ContextEntree incorrect`,
      });
    }
  }
  consistencyErrors.push(
    ...family.Evenements.filter((e) => !isValidEvenementFamille(e.Type)).map(
      (e) => ({
        familyId: family.Titre,
        issueType: `Event ${e.notionId} has unknown event Type "${e.Type}"`,
      })
    )
  );
  consistencyWarnings.push(
    ...family.Evenements.filter((e) => e.Type !== null && e.Date === null).map(
      (e) => ({
        familyId: family.Titre,
        issueType: `Event ${e.notionId} with non null Type "${e.Type}" but null Date`,
      })
    )
  );
  return {
    errors: consistencyErrors,
    warnings: consistencyWarnings,
  };
}