import { getPayload, Payload } from "payload";
import config from "@/payload.config";

import { afterAll, beforeAll, describe, expect, it, vi, type MockInstance } from "vitest";
import type { User, RibbonSubmission } from "@/payload-types";
import { submitRibbonDesign, withdrawRibbonSubmission, reviewRibbonSubmission } from "@/app/(frontend)/awards/design/actions";
import { EventTypes } from "@/utils/event-log/eventTypes";

// Mock next/headers to avoid "headers was called outside a request scope" error
vi.mock("next/headers", () => ({
  headers: async () => new Headers(),
}));

let payload: Payload;
let authSpy: MockInstance;

const RUN = `ribbon-${Date.now().toString(36)}`;

describe("Ribbon Design Submissions", () => {
  let user: User;
  let userId: number;
  let adminUser: User;
  let adminUserId: number;

  beforeAll(async () => {
    const payloadConfig = await config;
    payload = await getPayload({ config: payloadConfig });
    
    // Create a regular user
    user = (await payload.create({
      collection: "users",
      data: {
        username: `${RUN}-user`,
        discordUsername: `${RUN}-user`,
        displayName: "RIBBON TEST",
        steamId: `7656119${Math.floor(Math.random() * 1e9)}`,
        password: "Test123",
        roles: ["user"],
      },
      overrideAccess: true,
      depth: 0,
    })) as unknown as User;
    userId = user.id;

    // Create an admin user
    adminUser = (await payload.create({
      collection: "users",
      data: {
        username: `${RUN}-admin`,
        discordUsername: `${RUN}-admin`,
        displayName: "RIBBON ADMIN",
        steamId: `7656119${Math.floor(Math.random() * 1e9)}`,
        password: "Test123",
        roles: ["admin"],
      },
      overrideAccess: true,
      depth: 0,
    })) as unknown as User;
    adminUserId = adminUser.id;
    
    // Set up auth spy for testing authentication
    authSpy = vi.spyOn(payload, "auth");
  });

  afterAll(async () => {
    // Clean up users
    try {
      await payload.delete({ collection: "users", id: userId, overrideAccess: true });
    } catch {
      // Ignore if already deleted
    }
    try {
      await payload.delete({ collection: "users", id: adminUserId, overrideAccess: true });
    } catch {
      // Ignore if already deleted
    }
    // Restore auth spy
    authSpy.mockRestore();
  });

  describe("submitRibbonDesign", () => {
    it("creates a pending submission and emits the submitted event", async () => {
      // Mock authentication for regular user
      authSpy.mockResolvedValue({ user });
      
      const design = {
        stripes: [
          { color: "#b91c1c", width: 30 },
          { color: "#f5f5f4", width: 5 },
          { color: "#1e3a5f", width: 30 },
        ],
        devices: [],
        mirrored: false,
      };

      const result = await submitRibbonDesign({
        name: "Test Ribbon",
        description: "A test ribbon design",
        design,
      });

      expect(result.success).toBe(true);
      expect(result.data?.id).toBeDefined();

      const submissionId = result.data!.id;
      
      // Verify the submission was created with correct data
      const submission = await payload.findByID({
        collection: "ribbon-submissions",
        id: submissionId,
        depth: 0,
        overrideAccess: true,
      }) as RibbonSubmission;

      expect(submission.user).toBe(userId);
      expect(submission.status).toBe("pending");
      expect(submission.name).toBe("Test Ribbon");
      expect(submission.description).toBe("A test ribbon design");
      expect(submission.design).toEqual(design);

      // Verify event was emitted (scoped to this submission; the shared dev
      // database accumulates events across runs)
      const events = await payload.find({
        collection: "game-event-logs",
        where: {
          and: [
            { type: { equals: EventTypes.AwardRibbonSubmitted } },
            { targetId: { equals: submissionId } },
          ],
        },
        depth: 0,
        overrideAccess: true,
      });
      
      expect(events.docs).toHaveLength(1);
      expect(events.docs[0].message).toContain("Test Ribbon");
    });

    it("rejects an invalid design", async () => {
      // Mock authentication for regular user
      authSpy.mockResolvedValue({ user });
      
      const result = await submitRibbonDesign({
        name: "Invalid Test",
        description: "A test with invalid design",
        design: {
          stripes: [],
          devices: [],
          mirrored: false,
        },
      });

      expect(result.success).toBe(false);
      expect(result.error).toBe("Must have between 1 and 10 stripes");
    });

    it("enforces the pending cap", async () => {
      // Mock authentication for regular user
      authSpy.mockResolvedValue({ user });
      
      // Fill the pending cap
      for (let i = 0; i < 15; i++) {
        await payload.create({
          collection: "ribbon-submissions",
          data: {
            name: `Pending ${i}`,
            description: `Pending submission ${i}`,
            design: {
              stripes: [{ color: "#b91c1c", width: 30 }],
              devices: [],
              mirrored: false,
            },
            user: userId,
            status: "pending",
          },
          overrideAccess: true,
          depth: 0,
        });
      }

      const result = await submitRibbonDesign({
        name: "Too Many",
        description: "This should fail due to cap",
        design: {
          stripes: [{ color: "#b91c1c", width: 30 }],
          devices: [],
          mirrored: false,
        },
      });

      expect(result.success).toBe(false);
      expect(result.error).toBe("You already have 15 pending ribbon submissions. Wait for them to be reviewed first.");
    });
  });

  describe("withdrawRibbonSubmission", () => {
    it("allows withdrawing own pending submissions", async () => {
      // Mock authentication for regular user
      authSpy.mockResolvedValue({ user });
      
      // Create a pending submission
      const submission = await payload.create({
        collection: "ribbon-submissions",
        data: {
          name: "Withdraw Test",
          description: "A test for withdrawal",
          design: {
            stripes: [{ color: "#b91c1c", width: 30 }],
            devices: [],
            mirrored: false,
          },
          user: userId,
          status: "pending",
        },
        overrideAccess: true,
        depth: 0,
      });

      const result = await withdrawRibbonSubmission(submission.id);

      expect(result.success).toBe(true);
      
      // Verify submission was deleted
      const fetchedSubmission = await payload.findByID({
        collection: "ribbon-submissions",
        id: submission.id,
        depth: 0,
        overrideAccess: true,
      }).catch(() => null);
      
      expect(fetchedSubmission).toBeNull();
    });

    it("rejects withdrawing submissions that don't belong to the user", async () => {
      // Create a pending submission for the user
      const submission = await payload.create({
        collection: "ribbon-submissions",
        data: {
          name: "Withdraw Test 2",
          description: "A test for withdrawal",
          design: {
            stripes: [{ color: "#b91c1c", width: 30 }],
            devices: [],
            mirrored: false,
          },
          user: userId,
          status: "pending",
        },
        overrideAccess: true,
        depth: 0,
      });

      // Mock authentication for admin user to test access control
      authSpy.mockResolvedValue({ user: adminUser });

      const result = await withdrawRibbonSubmission(submission.id);

      expect(result.success).toBe(false);
      expect(result.error).toBe("You can only withdraw your own submissions.");
    });

    it("rejects withdrawing non-pending submissions", async () => {
      // Create an approved submission
      const submission = await payload.create({
        collection: "ribbon-submissions",
        data: {
          name: "Approved Test",
          description: "An approved submission",
          design: {
            stripes: [{ color: "#b91c1c", width: 30 }],
            devices: [],
            mirrored: false,
          },
          user: userId,
          status: "approved",
        },
        overrideAccess: true,
        depth: 0,
      });

      // Mock authentication for regular user
      authSpy.mockResolvedValue({ user });

      const result = await withdrawRibbonSubmission(submission.id);

      expect(result.success).toBe(false);
      expect(result.error).toBe("Only pending submissions can be withdrawn.");
    });
  });

  describe("reviewRibbonSubmission", () => {
    it("allows admins to approve submissions", async () => {
      // Mock authentication for admin user
      authSpy.mockResolvedValue({ user: adminUser });
      
      // Create a pending submission (unique name: approvals persist an award
      // with this name, and the shared dev database keeps prior runs' awards)
      const submission = await payload.create({
        collection: "ribbon-submissions",
        data: {
          name: `Approve Test-${RUN}`,
          description: "A test for approval",
          design: {
            stripes: [{ color: "#b91c1c", width: 30 }],
            devices: [],
            mirrored: false,
          },
          user: userId,
          status: "pending",
        },
        overrideAccess: true,
        depth: 0,
      });

      const result = await reviewRibbonSubmission(submission.id, "approved", {
        awardXp: 25,
        grantorTypes: ["division"],
        recipientScope: "same_command",
      });

      expect(result.success).toBe(true);
      expect(result.data?.status).toBe("approved");

      // Verify submission was updated
      const updatedSubmission = await payload.findByID({
        collection: "ribbon-submissions",
        id: submission.id,
        depth: 0,
        overrideAccess: true,
      }) as RibbonSubmission;

      expect(updatedSubmission.status).toBe("approved");
      expect(updatedSubmission.awardXp).toBe(25);
      expect(updatedSubmission.grantorTypes).toEqual(["division"]);
      expect(updatedSubmission.recipientScope).toBe("same_command");
    });

    it("rejects non-reviewers from updating submissions", async () => {
      // Create a pending submission
      const submission = await payload.create({
        collection: "ribbon-submissions",
        data: {
          name: "Access Test",
          description: "A test for access control",
          design: {
            stripes: [{ color: "#b91c1c", width: 30 }],
            devices: [],
            mirrored: false,
          },
          user: userId,
          status: "pending",
        },
        overrideAccess: true,
        depth: 0,
      });

      // Mock authentication for regular user (not admin)
      authSpy.mockResolvedValue({ user });

      // Try to approve as a regular user (should fail)
      const result = await reviewRibbonSubmission(submission.id, "approved", {
        awardXp: 25,
        grantorTypes: ["division"],
      });

      expect(result.success).toBe(false);
      expect(result.error).toBe("Only admins and developers can review ribbon submissions.");
    });

    it("rejects approval without XP", async () => {
      authSpy.mockResolvedValue({ user: adminUser });

      // Create a pending submission
      const submission = await payload.create({
        collection: "ribbon-submissions",
        data: {
          name: "No XP Test",
          description: "A test for XP validation",
          design: {
            stripes: [{ color: "#b91c1c", width: 30 }],
            devices: [],
            mirrored: false,
          },
          user: userId,
          status: "pending",
        },
        overrideAccess: true,
        depth: 0,
      });

      const result = await reviewRibbonSubmission(submission.id, "approved", {
        grantorTypes: ["division"],
      });

      expect(result.success).toBe(false);
      expect(result.error).toBe("XP must be at least 1.");
    });

    it("rejects approval with empty grantor types", async () => {
      authSpy.mockResolvedValue({ user: adminUser });

      // Create a pending submission
      const submission = await payload.create({
        collection: "ribbon-submissions",
        data: {
          name: "Invalid Grantor Test",
          description: "A test for grantor validation",
          design: {
            stripes: [{ color: "#b91c1c", width: 30 }],
            devices: [],
            mirrored: false,
          },
          user: userId,
          status: "pending",
        },
        overrideAccess: true,
        depth: 0,
      });

      const result = await reviewRibbonSubmission(submission.id, "approved", {
        awardXp: 25,
        grantorTypes: [],
      });

      expect(result.success).toBe(false);
      expect(result.error).toBe("Choose at least one grantor type.");
    });

    it("rejects approval with invalid recipient scope", async () => {
      authSpy.mockResolvedValue({ user: adminUser });

      // Create a pending submission
      const submission = await payload.create({
        collection: "ribbon-submissions",
        data: {
          name: "Invalid Scope Test",
          description: "A test for recipient scope validation",
          design: {
            stripes: [{ color: "#b91c1c", width: 30 }],
            devices: [],
            mirrored: false,
          },
          user: userId,
          status: "pending",
        },
        overrideAccess: true,
        depth: 0,
      });

      // Server action args arrive untyped over the wire, so a caller can send
      // a scope outside the union; forge one to exercise the runtime guard.
      const forgedOpts = {
        awardXp: 25,
        grantorTypes: ["division"],
        recipientScope: "whitelist",
      };
      const result = await reviewRibbonSubmission(
        submission.id,
        "approved",
        forgedOpts as Parameters<typeof reviewRibbonSubmission>[2],
      );

      expect(result.success).toBe(false);
      expect(result.error).toBe("Whitelist scoping is not available yet.");
    });

    it("rejects approval with duplicate award names", async () => {
      authSpy.mockResolvedValue({ user: adminUser });

      const dupName = `Duplicate Test-${RUN}`;

      // Create an existing award with the same name (using proper structure)
      await payload.create({
        collection: "awards",
        data: {
          name: dupName,
          description: {
            root: {
              type: "root",
              children: [
                {
                  type: "paragraph",
                  children: [
                    {
                      type: "text",
                      text: "Test description",
                      format: 0,
                      style: "",
                      mode: "normal",
                      detail: 0,
                      version: 1,
                    },
                  ],
                  direction: "ltr",
                  format: "",
                  indent: 0,
                  textFormat: 0,
                  textStyle: "",
                  version: 1,
                },
              ],
              direction: "ltr",
              format: "",
              indent: 0,
              version: 1,
            },
          },
          type: "ribbon",
          ribbonDesign: {
            stripes: [{ color: "#b91c1c", width: 30 }],
            devices: [],
            mirrored: false,
          },
          experiencePoints: 25,
          grantConfig: {
            allowedGrantorAssignmentTypes: ["division"],
            recipientScope: "same_command",
            maxGrantsPerGrantor: null,
          },
        },
        overrideAccess: true,
        depth: 0,
      });

      const submission = await payload.create({
        collection: "ribbon-submissions",
        data: {
          name: dupName,
          description: "A test for duplicate name",
          design: {
            stripes: [{ color: "#b91c1c", width: 30 }],
            devices: [],
            mirrored: false,
          },
          user: userId,
          status: "pending",
        },
        overrideAccess: true,
        depth: 0,
      });

      // Mock authentication for admin user
      authSpy.mockResolvedValue({ user: adminUser });

      const result = await reviewRibbonSubmission(submission.id, "approved", {
        awardXp: 25,
        grantorTypes: ["division"],
      });

      expect(result.success).toBe(false);
      expect(result.error).toContain("already exists");
    });

    it("rejects rejection without review note", async () => {
      // Mock authentication for admin user
      authSpy.mockResolvedValue({ user: adminUser });
      
      // Create a pending submission
      const submission = await payload.create({
        collection: "ribbon-submissions",
        data: {
          name: "Reject Test",
          description: "A test for rejection",
          design: {
            stripes: [{ color: "#b91c1c", width: 30 }],
            devices: [],
            mirrored: false,
          },
          user: userId,
          status: "pending",
        },
        overrideAccess: true,
        depth: 0,
      });

      const result = await reviewRibbonSubmission(submission.id, "rejected", {
        reviewNote: "Too similar to an existing ribbon.",
      });

      expect(result.success).toBe(true);
      expect(result.data?.status).toBe("rejected");

      // Verify submission was updated
      const updatedSubmission = await payload.findByID({
        collection: "ribbon-submissions",
        id: submission.id,
        depth: 0,
        overrideAccess: true,
      }) as RibbonSubmission;

      expect(updatedSubmission.status).toBe("rejected");
      expect(updatedSubmission.reviewNote).toBe("Too similar to an existing ribbon.");
    });
  });
});