import { z } from "zod";
import {
  reportEntitySchema,
  ReportTemplateConfigSchema,
  type EntityKey,
} from "./report-query-config.js";

export const RESOURCE_MONTH_RECOMMENDED_COLUMNS = [
  "monthKey",
  "displayName",
  "eid",
  "chapter",
  "countryCode",
  "countryName",
  "federalState",
  "metroCityName",
  "orgUnitName",
  "managementLevelGroupName",
  "monthlyBaseWorkingDays",
  "monthlyEffectiveWorkingDays",
  "monthlyBaseAvailableHours",
  "monthlyPublicHolidayCount",
  "monthlyPublicHolidayWorkdayCount",
  "monthlyPublicHolidayHoursDeduction",
  "monthlyAbsenceDayEquivalent",
  "monthlyAbsenceHoursDeduction",
  "monthlySahHours",
  "monthlyChargeabilityTargetPct",
  "monthlyTargetHours",
  "monthlyActualBookedHours",
  "monthlyExpectedBookedHours",
  "monthlyActualChargeabilityPct",
  "monthlyExpectedChargeabilityPct",
  "monthlyUnassignedHours",
] as const;

export const RESOURCE_MONTH_MINIMUM_AUDIT_COLUMNS = [
  "monthKey",
  "displayName",
  "countryName",
  "federalState",
  "metroCityName",
  "monthlyPublicHolidayCount",
  "monthlyPublicHolidayHoursDeduction",
  "monthlyAbsenceDayEquivalent",
  "monthlyAbsenceHoursDeduction",
  "monthlySahHours",
  "monthlyTargetHours",
  "monthlyActualBookedHours",
  "monthlyUnassignedHours",
] as const;

export const ReportBlueprintSummarySchema = z.object({
  id: z.string().min(1),
  label: z.string().min(1),
  description: z.string().min(1),
  entity: reportEntitySchema,
  templateName: z.string().min(1),
  config: ReportTemplateConfigSchema,
});

export const ReportBlueprintCatalogSchema = z.array(ReportBlueprintSummarySchema);

export type ReportBlueprintSummary = z.infer<typeof ReportBlueprintSummarySchema>;

export type ResourceMonthTemplateCompleteness = {
  scope: "resource_month";
  isAuditReady: boolean;
  isRecommendedComplete: boolean;
  recommendedColumnCount: number;
  selectedRecommendedColumnCount: number;
  minimumAuditColumnCount: number;
  selectedMinimumAuditColumnCount: number;
  missingRecommendedColumns: string[];
  missingMinimumAuditColumns: string[];
};

const REPORT_BLUEPRINTS = ReportBlueprintCatalogSchema.parse([
  {
    id: "resource-month-sah-transparency",
    label: "SAH transparency",
    description: "Explains how monthly SAH is reduced by holidays and absences per person.",
    entity: "resource_month",
    templateName: "Monthly SAH transparency",
    config: {
      entity: "resource_month",
      columns: [
        "monthKey",
        "displayName",
        "eid",
        "chapter",
        "countryName",
        "federalState",
        "metroCityName",
        "orgUnitName",
        "managementLevelGroupName",
        "monthlyBaseWorkingDays",
        "monthlyEffectiveWorkingDays",
        "monthlyBaseAvailableHours",
        "monthlyPublicHolidayCount",
        "monthlyPublicHolidayWorkdayCount",
        "monthlyPublicHolidayHoursDeduction",
        "monthlyAbsenceDayEquivalent",
        "monthlyAbsenceHoursDeduction",
        "monthlySahHours",
        "monthlyChargeabilityTargetPct",
        "monthlyTargetHours",
      ],
      filters: [],
      sortBy: "displayName",
      sortDir: "asc",
    },
  },
  {
    id: "resource-month-chargeability-audit",
    label: "Chargeability audit",
    description: "Shows the full path from monthly SAH to booked, target and unassigned hours.",
    entity: "resource_month",
    templateName: "Monthly chargeability audit",
    config: {
      entity: "resource_month",
      columns: [
        "monthKey",
        "displayName",
        "eid",
        "chapter",
        "countryName",
        "federalState",
        "metroCityName",
        "orgUnitName",
        "managementLevelGroupName",
        "monthlyBaseAvailableHours",
        "monthlyPublicHolidayCount",
        "monthlyPublicHolidayHoursDeduction",
        "monthlyAbsenceDayEquivalent",
        "monthlyAbsenceHoursDeduction",
        "monthlySahHours",
        "monthlyChargeabilityTargetPct",
        "monthlyTargetHours",
        "monthlyActualBookedHours",
        "monthlyExpectedBookedHours",
        "monthlyActualChargeabilityPct",
        "monthlyExpectedChargeabilityPct",
        "monthlyUnassignedHours",
        "lcrCents",
        "currency",
      ],
      filters: [],
      sortBy: "monthlyActualChargeabilityPct",
      sortDir: "desc",
    },
  },
  {
    id: "resource-month-location-comparison",
    label: "Location comparison",
    description: "Compares holiday impact across country, state and city contexts for the same month.",
    entity: "resource_month",
    templateName: "Monthly holiday comparison by location",
    config: {
      entity: "resource_month",
      columns: [
        "monthKey",
        "displayName",
        "chapter",
        "countryName",
        "federalState",
        "metroCityName",
        "orgUnitName",
        "monthlyBaseWorkingDays",
        "monthlyBaseAvailableHours",
        "monthlyPublicHolidayCount",
        "monthlyPublicHolidayWorkdayCount",
        "monthlyPublicHolidayHoursDeduction",
        "monthlyAbsenceDayEquivalent",
        "monthlyAbsenceHoursDeduction",
        "monthlySahHours",
        "monthlyActualChargeabilityPct",
      ],
      filters: [],
      groupBy: "federalState",
      sortBy: "monthlyPublicHolidayHoursDeduction",
      sortDir: "desc",
    },
  },
]);

export function listReportBlueprints(entity?: EntityKey): ReportBlueprintSummary[] {
  return entity
    ? REPORT_BLUEPRINTS.filter((blueprint) => blueprint.entity === entity)
    : REPORT_BLUEPRINTS;
}

export function buildResourceMonthTemplateCompleteness(
  columns: Iterable<string>,
): ResourceMonthTemplateCompleteness {
  const selectedColumns = new Set(columns);
  const missingRecommendedColumns = RESOURCE_MONTH_RECOMMENDED_COLUMNS
    .filter((column) => !selectedColumns.has(column));
  const missingMinimumAuditColumns = RESOURCE_MONTH_MINIMUM_AUDIT_COLUMNS
    .filter((column) => !selectedColumns.has(column));

  return {
    scope: "resource_month",
    isAuditReady: missingMinimumAuditColumns.length === 0,
    isRecommendedComplete: missingRecommendedColumns.length === 0,
    recommendedColumnCount: RESOURCE_MONTH_RECOMMENDED_COLUMNS.length,
    selectedRecommendedColumnCount: RESOURCE_MONTH_RECOMMENDED_COLUMNS.length - missingRecommendedColumns.length,
    minimumAuditColumnCount: RESOURCE_MONTH_MINIMUM_AUDIT_COLUMNS.length,
    selectedMinimumAuditColumnCount:
      RESOURCE_MONTH_MINIMUM_AUDIT_COLUMNS.length - missingMinimumAuditColumns.length,
    missingRecommendedColumns,
    missingMinimumAuditColumns,
  };
}