import { SystemRole } from "@capakraken/shared";
import { beforeEach, describe, expect, it, vi } from "vitest";

vi.mock("@capakraken/application", () => ({
  isChargeabilityActualBooking: vi.fn(() => false),
  isChargeabilityRelevantProject: vi.fn(() => false),
  listAssignmentBookings: vi.fn().mockResolvedValue([]),
}));

vi.mock("../lib/resource-capacity.js", () => ({
  calculateEffectiveAvailableHours: vi.fn(({ context }: { context?: unknown }) => (context ? 156 : 168)),
  calculateEffectiveBookedHours: vi.fn(() => 0),
  countEffectiveWorkingDays: vi.fn(({ context }: { context?: unknown }) => (context ? 19.5 : 21)),
  getAvailabilityHoursForDate: vi.fn(() => 8),
  loadResourceDailyAvailabilityContexts: vi.fn().mockResolvedValue(new Map([
    [
      "res_1",
      {
        holidayDates: new Set(["2026-04-10"]),
        vacationFractionsByDate: new Map([["2026-04-14", 0.5]]),
      },
    ],
  ])),
}));

import { reportRouter } from "../router/report.js";
import { createCallerFactory } from "../trpc.js";

const createCaller = createCallerFactory(reportRouter);

function createControllerCaller(db: Record<string, unknown>) {
  return createCaller({
    session: {
      user: { email: "controller@example.com", name: "Controller", image: null },
      expires: "2099-01-01T00:00:00.000Z",
    },
    db: db as never,
    dbUser: {
      id: "user_controller",
      systemRole: SystemRole.CONTROLLER,
      permissionOverrides: null,
    },
  });
}

describe("report router", () => {
  beforeEach(() => {
    vi.clearAllMocks();
  });

  it("lists the new resource month transparency columns", async () => {
    const caller = createControllerCaller({});
    const columns = await caller.getAvailableColumns({ entity: "resource_month" });

    expect(columns).toEqual(expect.arrayContaining([
      expect.objectContaining({ key: "monthlyPublicHolidayCount", label: "Holiday Dates" }),
      expect.objectContaining({ key: "monthlyTargetHours", label: "Target Hours" }),
      expect.objectContaining({ key: "monthlyUnassignedHours", label: "Unassigned Hours" }),
    ]));
  });

  it("exposes extended resource and project basis columns for report completeness", async () => {
    const caller = createControllerCaller({});

    const resourceColumns = await caller.getAvailableColumns({ entity: "resource" });
    const projectColumns = await caller.getAvailableColumns({ entity: "project" });

    expect(resourceColumns).toEqual(expect.arrayContaining([
      expect.objectContaining({ key: "enterpriseId", label: "Enterprise ID" }),
      expect.objectContaining({ key: "valueScore", label: "Value Score" }),
      expect.objectContaining({ key: "blueprint.name", label: "Blueprint" }),
      expect.objectContaining({ key: "clientUnit.name", label: "Client Unit" }),
    ]));
    expect(projectColumns).toEqual(expect.arrayContaining([
      expect.objectContaining({ key: "shoringThreshold", label: "Shoring Threshold (%)" }),
      expect.objectContaining({ key: "onshoreCountryCode", label: "Onshore Country Code" }),
      expect.objectContaining({ key: "color", label: "Color" }),
    ]));
  });

  it("lists backend-managed report blueprints for resource_month", async () => {
    const caller = createControllerCaller({});
    const blueprints = await caller.listBlueprints({ entity: "resource_month" });

    expect(blueprints).toEqual([
      expect.objectContaining({
        id: "resource-month-sah-transparency",
        entity: "resource_month",
        templateName: "Monthly SAH transparency",
        config: expect.objectContaining({
          entity: "resource_month",
          sortBy: "displayName",
          sortDir: "asc",
          filters: [],
        }),
      }),
      expect.objectContaining({
        id: "resource-month-chargeability-audit",
        entity: "resource_month",
        templateName: "Monthly chargeability audit",
        config: expect.objectContaining({
          entity: "resource_month",
          sortBy: "monthlyActualChargeabilityPct",
          sortDir: "desc",
          filters: [],
        }),
      }),
      expect.objectContaining({
        id: "resource-month-location-comparison",
        entity: "resource_month",
        templateName: "Monthly holiday comparison by location",
        config: expect.objectContaining({
          entity: "resource_month",
          groupBy: "federalState",
          sortBy: "monthlyPublicHolidayHoursDeduction",
          sortDir: "desc",
          filters: [],
        }),
      }),
    ]);
  });

  it("exports resource month basis and computed columns in CSV", async () => {
    const db = {
      resource: {
        findMany: vi.fn().mockResolvedValue([
          {
            id: "res_1",
            eid: "alice",
            displayName: "Alice",
            email: "alice@example.com",
            chapter: "VFX",
            resourceType: "EMPLOYEE",
            isActive: true,
            chgResponsibility: false,
            rolledOff: false,
            departed: false,
            lcrCents: 7500,
            ucrCents: 10000,
            currency: "EUR",
            fte: 1,
            availability: { monday: 8, tuesday: 8, wednesday: 8, thursday: 8, friday: 8 },
            chargeabilityTarget: 80,
            federalState: "BY",
            countryId: "country_de",
            metroCityId: null,
            country: { code: "DE", name: "Germany" },
            metroCity: null,
            orgUnit: { name: "Delivery" },
            managementLevelGroup: null,
            managementLevel: { name: "Senior" },
          },
        ]),
      },
    };

    const caller = createControllerCaller(db);
    const result = await caller.exportReport({
      entity: "resource_month",
      columns: [
        "displayName",
        "countryCode",
        "monthlyPublicHolidayCount",
        "monthlyPublicHolidayHoursDeduction",
        "monthlyAbsenceHoursDeduction",
        "monthlySahHours",
        "monthlyTargetHours",
        "monthlyUnassignedHours",
      ],
      filters: [],
      periodMonth: "2026-04",
      limit: 100,
    });

    expect(result.rowCount).toBe(1);
    expect(result.csv).toContain("Name,Country Code,Holiday Dates,Holiday Hours Deduction,Absence Hours Deduction,SAH,Target Hours,Unassigned Hours");
    expect(result.csv).toContain("Alice,DE,1,8,4,156,124.8,156");
    expect(result.columns).toEqual([
      "id",
      "displayName",
      "countryCode",
      "monthlyPublicHolidayCount",
      "monthlyPublicHolidayHoursDeduction",
      "monthlyAbsenceHoursDeduction",
      "monthlySahHours",
      "monthlyTargetHours",
      "monthlyUnassignedHours",
    ]);
    expect(result.explainability).toEqual({
      entity: "resource_month",
      periodMonth: "2026-04",
      locationContextColumns: ["countryCode"],
      holidayMetricColumns: ["monthlyPublicHolidayCount", "monthlyPublicHolidayHoursDeduction"],
      absenceMetricColumns: ["monthlyAbsenceHoursDeduction"],
      capacityMetricColumns: ["monthlySahHours", "monthlyTargetHours"],
      chargeabilityMetricColumns: ["monthlyUnassignedHours"],
      missingRecommendedColumns: [
        "countryName",
        "federalState",
        "metroCityName",
        "monthlyPublicHolidayWorkdayCount",
        "monthlyAbsenceDayEquivalent",
        "monthlyBaseWorkingDays",
        "monthlyEffectiveWorkingDays",
        "monthlyBaseAvailableHours",
        "monthlyChargeabilityTargetPct",
      ],
      notes: [
        "monthlySahHours already reflects region-specific public holidays from country, federal state, and city context when those attributes exist on the resource.",
        "monthlyAbsence* metrics only deduct workdays that are not already counted as public holidays.",
        "monthlyBaseAvailableHours shows pre-deduction capacity; compare it with holiday, absence, and SAH columns to explain the final monthly availability.",
      ],
    });
  });

  it("keeps holiday and absence deductions separate in resource_month rows", async () => {
    const db = {
      resource: {
        findMany: vi.fn().mockResolvedValue([
          {
            id: "res_1",
            eid: "alice",
            displayName: "Alice",
            email: "alice@example.com",
            chapter: "VFX",
            resourceType: "EMPLOYEE",
            isActive: true,
            chgResponsibility: false,
            rolledOff: false,
            departed: false,
            lcrCents: 7500,
            ucrCents: 10000,
            currency: "EUR",
            fte: 1,
            availability: { monday: 8, tuesday: 8, wednesday: 8, thursday: 8, friday: 8 },
            chargeabilityTarget: 80,
            federalState: "BY",
            countryId: "country_de",
            metroCityId: null,
            country: { code: "DE", name: "Germany" },
            metroCity: null,
            orgUnit: { name: "Delivery" },
            managementLevelGroup: null,
            managementLevel: { name: "Senior" },
          },
        ]),
      },
    };

    const caller = createControllerCaller(db);
    const result = await caller.getReportData({
      entity: "resource_month",
      columns: [
        "displayName",
        "monthlyPublicHolidayCount",
        "monthlyPublicHolidayHoursDeduction",
        "monthlyAbsenceDayEquivalent",
        "monthlyAbsenceHoursDeduction",
        "monthlySahHours",
      ],
      filters: [],
      periodMonth: "2026-04",
      limit: 100,
      offset: 0,
    });

    expect(result.rows).toEqual([
      {
        id: "res_1:2026-04",
        displayName: "Alice",
        monthlyPublicHolidayCount: 1,
        monthlyPublicHolidayHoursDeduction: 8,
        monthlyAbsenceDayEquivalent: 0.5,
        monthlyAbsenceHoursDeduction: 4,
        monthlySahHours: 156,
      },
    ]);
    expect(result.explainability).toEqual({
      entity: "resource_month",
      periodMonth: "2026-04",
      locationContextColumns: [],
      holidayMetricColumns: ["monthlyPublicHolidayCount", "monthlyPublicHolidayHoursDeduction"],
      absenceMetricColumns: ["monthlyAbsenceDayEquivalent", "monthlyAbsenceHoursDeduction"],
      capacityMetricColumns: ["monthlySahHours"],
      chargeabilityMetricColumns: [],
      missingRecommendedColumns: [
        "countryCode",
        "countryName",
        "federalState",
        "metroCityName",
        "monthlyPublicHolidayWorkdayCount",
        "monthlyBaseWorkingDays",
        "monthlyEffectiveWorkingDays",
        "monthlyBaseAvailableHours",
        "monthlyChargeabilityTargetPct",
        "monthlyTargetHours",
      ],
      notes: [
        "monthlySahHours already reflects region-specific public holidays from country, federal state, and city context when those attributes exist on the resource.",
        "monthlyAbsence* metrics only deduct workdays that are not already counted as public holidays.",
        "monthlyBaseAvailableHours shows pre-deduction capacity; compare it with holiday, absence, and SAH columns to explain the final monthly availability.",
      ],
    });
  });

  it("flattens extended assignment resource and project context columns", async () => {
    const db = {
      assignment: {
        findMany: vi.fn().mockResolvedValue([
          {
            id: "asg_1",
            hoursPerDay: 6,
            resource: {
              displayName: "Alice",
              resourceType: "EMPLOYEE",
              chargeabilityTarget: 85,
              orgUnit: { name: "Delivery" },
              managementLevelGroup: { name: "Senior IC" },
              managementLevel: { name: "Senior Artist" },
            },
            project: {
              name: "Gelddruckmaschine",
              orderType: "TIME_AND_MATERIAL",
              allocationType: "PROJECT",
              blueprint: { name: "Consulting Blueprint" },
              utilizationCategory: { name: "Billable" },
            },
          },
        ]),
        count: vi.fn().mockResolvedValue(1),
      },
    };

    const caller = createControllerCaller(db);
    const result = await caller.getReportData({
      entity: "assignment",
      columns: [
        "resource.displayName",
        "resource.resourceType",
        "resource.chargeabilityTarget",
        "resource.orgUnit.name",
        "resource.managementLevelGroup.name",
        "resource.managementLevel.name",
        "project.name",
        "project.orderType",
        "project.allocationType",
        "project.blueprint.name",
        "project.utilizationCategory.name",
        "hoursPerDay",
      ],
      filters: [],
      sortBy: "hoursPerDay",
      sortDir: "desc",
      limit: 10,
      offset: 0,
    });

    expect(db.assignment.findMany).toHaveBeenCalledWith({
      select: {
        id: true,
        hoursPerDay: true,
        resource: {
          select: {
            displayName: true,
            resourceType: true,
            chargeabilityTarget: true,
            orgUnit: { select: { name: true } },
            managementLevelGroup: { select: { name: true } },
            managementLevel: { select: { name: true } },
          },
        },
        project: {
          select: {
            name: true,
            orderType: true,
            allocationType: true,
            blueprint: { select: { name: true } },
            utilizationCategory: { select: { name: true } },
          },
        },
      },
      where: {},
      orderBy: [{ hoursPerDay: "desc" }],
      take: 10,
      skip: 0,
    });
    expect(result.rows).toEqual([
      {
        id: "asg_1",
        "resource.displayName": "Alice",
        "resource.resourceType": "EMPLOYEE",
        "resource.chargeabilityTarget": 85,
        "resource.orgUnit.name": "Delivery",
        "resource.managementLevelGroup.name": "Senior IC",
        "resource.managementLevel.name": "Senior Artist",
        "project.name": "Gelddruckmaschine",
        "project.orderType": "TIME_AND_MATERIAL",
        "project.allocationType": "PROJECT",
        "project.blueprint.name": "Consulting Blueprint",
        "project.utilizationCategory.name": "Billable",
        hoursPerDay: 6,
      },
    ]);
  });

  it("rejects invalid resource_month period months instead of silently normalizing them", async () => {
    const caller = createControllerCaller({});

    await expect(caller.getReportData({
      entity: "resource_month",
      columns: ["displayName"],
      filters: [],
      periodMonth: "2026-13",
      limit: 10,
      offset: 0,
    })).rejects.toMatchObject({
      code: "BAD_REQUEST",
      message: expect.stringContaining("Invalid"),
    });
  });

  it("rejects unknown columns instead of silently dropping them", async () => {
    const caller = createControllerCaller({
      resource: {
        findMany: vi.fn(),
        count: vi.fn(),
      },
    });

    await expect(caller.getReportData({
      entity: "resource",
      columns: ["displayName", "unknownColumn"],
      filters: [],
      limit: 10,
      offset: 0,
    })).rejects.toMatchObject({
      code: "BAD_REQUEST",
      message: expect.stringContaining("unknownColumn"),
    });
  });

  it("rejects unsupported relation filters instead of silently ignoring them", async () => {
    const caller = createControllerCaller({
      assignment: {
        findMany: vi.fn(),
        count: vi.fn(),
      },
    });

    await expect(caller.getReportData({
      entity: "assignment",
      columns: ["id", "resource.displayName"],
      filters: [{ field: "resource.displayName", op: "contains", value: "Alice" }],
      limit: 10,
      offset: 0,
    })).rejects.toMatchObject({
      code: "BAD_REQUEST",
      message: expect.stringContaining("resource.displayName"),
    });
  });

  it("rejects invalid numeric filter values instead of silently dropping them", async () => {
    const caller = createControllerCaller({
      resource: {
        findMany: vi.fn(),
        count: vi.fn(),
      },
    });

    await expect(caller.getReportData({
      entity: "resource",
      columns: ["displayName"],
      filters: [{ field: "lcrCents", op: "gte", value: "not-a-number" }],
      limit: 10,
      offset: 0,
    })).rejects.toMatchObject({
      code: "BAD_REQUEST",
      message: expect.stringContaining("lcrCents"),
    });
  });

  it("returns page-local grouping metadata and grouped CSV sections", async () => {
    const db = {
      resource: {
        findMany: vi.fn().mockResolvedValue([
          {
            id: "res_2",
            displayName: "Bob",
            chapter: "Delivery",
          },
          {
            id: "res_1",
            displayName: "Alice",
            chapter: "Design",
          },
          {
            id: "res_3",
            displayName: "Cara",
            chapter: "Design",
          },
        ]),
        count: vi.fn().mockResolvedValue(3),
      },
    };

    const caller = createControllerCaller(db);
    const data = await caller.getReportData({
      entity: "resource",
      columns: ["displayName", "chapter"],
      filters: [],
      groupBy: "chapter",
      sortBy: "displayName",
      sortDir: "asc",
      limit: 10,
      offset: 0,
    });

    expect(db.resource.findMany).toHaveBeenCalledWith({
      select: {
        id: true,
        displayName: true,
        chapter: true,
      },
      where: {},
      orderBy: [{ chapter: "asc" }, { displayName: "asc" }],
      take: 10,
      skip: 0,
    });
    expect(data.rows).toEqual([
      { id: "res_2", displayName: "Bob", chapter: "Delivery" },
      { id: "res_1", displayName: "Alice", chapter: "Design" },
      { id: "res_3", displayName: "Cara", chapter: "Design" },
    ]);
    expect(data.groups).toEqual([
      { key: "chapter:Delivery", label: "Delivery", rowCount: 1, startIndex: 0 },
      { key: "chapter:Design", label: "Design", rowCount: 2, startIndex: 1 },
    ]);

    const csv = await caller.exportReport({
      entity: "resource",
      columns: ["displayName", "chapter"],
      filters: [],
      groupBy: "chapter",
      sortBy: "displayName",
      sortDir: "asc",
      limit: 10,
    });

    expect(csv.csv).toContain("Chapter: Design (2),");
    expect(csv.csv).toContain("Chapter: Delivery (1),");
  });
});