import { readFileSync } from "node:fs";
import { resolve } from "node:path";
import { describe, expect, it, vi } from "vitest";
import type { Issue } from "@paperclipai/shared";
import { ATTACHMENT_NOTE } from "../src/constants.js";
import {
  buildForgejoIssuePayload,
  DEFAULT_SYNC_LABEL,
  isIssueSelected,
  syncIssueToForgejo
} from "../src/paperclip-issue-sync.js";

function buildIssue(overrides: Partial<Issue> = {}): Issue {
  return {
    id: "issue-1",
    companyId: "company-1",
    projectId: null,
    projectWorkspaceId: null,
    goalId: null,
    parentId: null,
    title: "Fix Forgejo sync",
    description: "See attached screenshot for the exact failure.",
    status: "in_progress",
    workMode: "standard",
    priority: "medium",
    assigneeAgentId: null,
    assigneeUserId: null,
    checkoutRunId: null,
    executionRunId: null,
    executionAgentNameKey: null,
    executionLockedAt: null,
    createdByAgentId: null,
    createdByUserId: null,
    issueNumber: 17,
    identifier: "PRIA-17",
    requestDepth: 0,
    billingCode: null,
    assigneeAdapterOverrides: null,
    executionWorkspaceId: null,
    executionWorkspacePreference: null,
    executionWorkspaceSettings: null,
    startedAt: null,
    completedAt: null,
    cancelledAt: null,
    hiddenAt: null,
    labels: [
      {
        id: "label-1",
        companyId: "company-1",
        name: DEFAULT_SYNC_LABEL,
        color: "#000000",
        createdAt: new Date("2026-06-02T00:00:00Z"),
        updatedAt: new Date("2026-06-02T00:00:00Z")
      }
    ],
    blockedBy: [],
    blocks: [],
    project: {
      id: "project-1",
      companyId: "company-1",
      name: "Forgejo Issue Sync Plugin",
      description: null,
      status: "planned",
      primaryGoalId: null,
      createdAt: new Date("2026-06-02T00:00:00Z"),
      updatedAt: new Date("2026-06-02T00:00:00Z")
    },
    goal: null,
    currentExecutionWorkspace: null,
    mentionedProjects: [],
    myLastTouchAt: null,
    lastExternalCommentAt: null,
    lastActivityAt: null,
    isUnreadForMe: false,
    createdAt: new Date("2026-06-02T00:00:00Z"),
    updatedAt: new Date("2026-06-02T00:00:00Z"),
    ...overrides
  } as Issue;
}

function readExampleIssue(name: string): Issue {
  const filePath = resolve(import.meta.dirname, "..", "examples", name);
  return JSON.parse(readFileSync(filePath, "utf8")) as Issue;
}

describe("paperclip issue sync", () => {
  it("selects issues by the configured sync label", () => {
    const issue = buildIssue();
    expect(isIssueSelected(issue, {})).toBe(true);
    expect(isIssueSelected(issue, { syncIssueLabel: "custom-sync" })).toBe(false);
  });

  it("builds a Forgejo issue body with metadata-only attachments", () => {
    const issue = buildIssue({
      workProducts: [
        {
          id: "wp-1",
          companyId: "company-1",
          projectId: null,
          issueId: "issue-1",
          executionWorkspaceId: null,
          runtimeServiceId: null,
          type: "artifact",
          provider: "paperclip",
          externalId: "attachment-1",
          title: "trace.log",
          url: "https://paperclip.example/artifacts/trace.log",
          status: "ready_for_review",
          reviewState: "none",
          isPrimary: false,
          healthStatus: "healthy",
          summary: null,
          metadata: {
            attachmentId: "attachment-1",
            contentType: "text/plain",
            byteSize: 2048,
            originalFilename: "trace.log"
          },
          createdByRunId: null,
          createdAt: new Date("2026-06-02T00:00:00Z"),
          updatedAt: new Date("2026-06-02T00:00:00Z")
        }
      ]
    } as Partial<Issue>);

    const payload = buildForgejoIssuePayload(issue);
    expect(payload.title).toContain("[PRIA-17]");
    expect(payload.body).toContain(ATTACHMENT_NOTE);
    expect(payload.body).toContain("trace.log | text/plain | 2.0 KiB");
    expect(payload.body).toContain("<!-- paperclip-sync:company-1:issue-1 -->");
    expect(payload.body).not.toContain("https://paperclip.example/artifacts/trace.log");
  });

  it("creates a Forgejo issue once and queues manual review when attachment context is required", async () => {
    const issue = buildIssue({
      workProducts: [
        {
          id: "wp-1",
          companyId: "company-1",
          projectId: null,
          issueId: "issue-1",
          executionWorkspaceId: null,
          runtimeServiceId: null,
          type: "artifact",
          provider: "paperclip",
          externalId: "attachment-1",
          title: "screenshot.png",
          url: "https://paperclip.example/artifacts/screenshot.png",
          status: "ready_for_review",
          reviewState: "none",
          isPrimary: false,
          healthStatus: "healthy",
          summary: null,
          metadata: {
            attachmentId: "attachment-1",
            contentType: "image/png",
            byteSize: 1024,
            originalFilename: "screenshot.png"
          },
          createdByRunId: null,
          createdAt: new Date("2026-06-02T00:00:00Z"),
          updatedAt: new Date("2026-06-02T00:00:00Z")
        }
      ]
    } as Partial<Issue>);
    const activityLog = vi.fn(async () => undefined);
    const reserve = vi.fn(async () => ({ kind: "reserved" as const }));
    const createRemoteIssue = vi.fn(async () => ({
      id: 101,
      number: 33,
      url: "https://forgejo.example/acme/repo/issues/33",
      apiUrl: "https://forgejo.example/api/v1/repos/acme/repo/issues/33"
    }));
    const recordRemote = vi.fn(async () => undefined);
    const complete = vi.fn(async () => undefined);
    const fail = vi.fn(async () => undefined);
    const failAfterRemote = vi.fn(async () => undefined);
    const queueManualReview = vi.fn(async () => undefined);

    const result = await syncIssueToForgejo(
      {
        config: { get: async () => ({ forgejoOwner: "acme", forgejoRepo: "repo" }) },
        activity: { log: activityLog }
      } as never,
      issue,
      { reserve, createRemoteIssue, recordRemote, complete, fail, failAfterRemote, queueManualReview }
    );

    expect(result).toBe("created");
    expect(createRemoteIssue).toHaveBeenCalledOnce();
    expect(recordRemote).toHaveBeenCalledWith(expect.anything(), "company-1", "issue-1", expect.objectContaining({ number: 33 }));
    expect(complete).toHaveBeenCalledWith(expect.anything(), "company-1", "issue-1");
    expect(queueManualReview).toHaveBeenCalledOnce();
    expect(activityLog).toHaveBeenCalledWith(expect.objectContaining({
      message: "Created Forgejo issue #33 for PRIA-17."
    }));
    expect(fail).not.toHaveBeenCalled();
    expect(failAfterRemote).not.toHaveBeenCalled();
  });

  it("skips remote creation when a synced mapping already exists", async () => {
    const issue = buildIssue();
    const createRemoteIssue = vi.fn();
    const complete = vi.fn(async () => undefined);

    const result = await syncIssueToForgejo(
      {
        config: { get: async () => ({ forgejoOwner: "acme", forgejoRepo: "repo" }) },
        activity: { log: vi.fn(async () => undefined) }
      } as never,
      issue,
      {
        reserve: async () => ({
          kind: "existing",
          mapping: {
            companyId: "company-1",
            paperclipIssueId: "issue-1",
            repoOwner: "acme",
            repoName: "repo",
            dedupeKey: "paperclip-issue:company-1:issue-1",
            sourceTitle: "[PRIA-17] Fix Forgejo sync",
            sourceBody: "body",
            attachmentMetadata: [],
            manualReviewRequired: false,
            reviewReasonCode: null,
            forgejoIssueId: 101,
            forgejoIssueNumber: 33,
            forgejoIssueUrl: "https://forgejo.example/acme/repo/issues/33",
            forgejoApiUrl: "https://forgejo.example/api/v1/repos/acme/repo/issues/33",
            syncStatus: "synced",
            lastError: null
          }
        }),
        createRemoteIssue,
        complete,
        failAfterRemote: vi.fn(async () => undefined)
      }
    );

    expect(result).toBe("existing");
    expect(createRemoteIssue).not.toHaveBeenCalled();
    expect(complete).toHaveBeenCalledOnce();
  });

  it("does not create a duplicate Forgejo issue after remote success and local mapping failure", async () => {
    const issue = buildIssue();
    const createdRemoteIssue = {
      id: 101,
      number: 33,
      url: "https://forgejo.example/acme/repo/issues/33",
      apiUrl: "https://forgejo.example/api/v1/repos/acme/repo/issues/33"
    };
    const activityLog = vi.fn(async () => undefined);
    const createRemoteIssue = vi.fn(async () => createdRemoteIssue);
    const recordRemote = vi.fn(async () => {
      throw new Error("failed to complete local mapping");
    });
    const failAfterRemote = vi.fn(async () => undefined);

    await expect(syncIssueToForgejo(
      {
        config: { get: async () => ({ forgejoOwner: "acme", forgejoRepo: "repo" }) },
        activity: { log: activityLog }
      } as never,
      issue,
      {
        reserve: async () => ({ kind: "reserved" as const }),
        createRemoteIssue,
        recordRemote,
        complete: vi.fn(async () => undefined),
        fail: vi.fn(async () => undefined),
        failAfterRemote
      }
    )).rejects.toThrow("failed to complete local mapping");

    expect(createRemoteIssue).toHaveBeenCalledTimes(1);
    expect(failAfterRemote).toHaveBeenCalledWith(
      expect.anything(),
      "company-1",
      "issue-1",
      expect.objectContaining({ number: 33 }),
      "failed to complete local mapping"
    );

    const retryCreateRemoteIssue = vi.fn(async () => {
      throw new Error("should not create a duplicate remote issue");
    });
    const retryRecordRemote = vi.fn(async () => undefined);
    const retryQueueManualReview = vi.fn(async () => undefined);
    const retryComplete = vi.fn(async () => undefined);

    const result = await syncIssueToForgejo(
      {
        config: { get: async () => ({ forgejoOwner: "acme", forgejoRepo: "repo" }) },
        activity: { log: activityLog }
      } as never,
      issue,
      {
        reserve: async () => ({
          kind: "existing" as const,
          mapping: {
            companyId: "company-1",
            paperclipIssueId: "issue-1",
            repoOwner: "acme",
            repoName: "repo",
            dedupeKey: "paperclip-issue:company-1:issue-1",
            sourceTitle: "[PRIA-17] Fix Forgejo sync",
            sourceBody: "body",
            attachmentMetadata: [],
            manualReviewRequired: false,
            reviewReasonCode: null,
            forgejoIssueId: 101,
            forgejoIssueNumber: 33,
            forgejoIssueUrl: "https://forgejo.example/acme/repo/issues/33",
            forgejoApiUrl: "https://forgejo.example/api/v1/repos/acme/repo/issues/33",
            syncStatus: "remote_created",
            lastError: "failed to complete local mapping"
          }
        }),
        createRemoteIssue: retryCreateRemoteIssue,
        recordRemote: retryRecordRemote,
        complete: retryComplete,
        fail: vi.fn(async () => undefined),
        failAfterRemote: vi.fn(async () => undefined),
        queueManualReview: retryQueueManualReview
      }
    );

    expect(result).toBe("existing");
    expect(retryCreateRemoteIssue).not.toHaveBeenCalled();
    expect(retryRecordRemote).not.toHaveBeenCalled();
    expect(retryComplete).toHaveBeenCalledOnce();
    expect(retryQueueManualReview).not.toHaveBeenCalled();
  });

  it("reproduces the synthetic dry-run payload and reuses the stored mapping on retry", async () => {
    const issue = readExampleIssue("first-dry-run-paperclip-issue.json");
    const payload = buildForgejoIssuePayload(issue);
    const createdRemoteIssue = {
      id: 401,
      number: 77,
      url: "https://forgejo.example/acme/repo/issues/77",
      apiUrl: "https://forgejo.example/api/v1/repos/acme/repo/issues/77"
    };
    const createRemoteIssue = vi.fn(async () => createdRemoteIssue);
    const complete = vi.fn(async () => undefined);

    expect(payload.title).toBe("[PRIA-DRY-1] Synthetic dry-run: reproduce outbound issue creation");
    expect(payload.body).toContain("A controlled dry-run payload for the first Forgejo sync rehearsal.");
    expect(payload.body).toContain(ATTACHMENT_NOTE);
    expect(payload.body).toContain("trace.log | text/plain | 2.0 KiB");
    expect(payload.body).toContain("<!-- paperclip-sync:company-dry-run:issue-dry-run-1 -->");

    const firstResult = await syncIssueToForgejo(
      {
        config: { get: async () => ({ forgejoOwner: "acme", forgejoRepo: "repo" }) },
        activity: { log: vi.fn(async () => undefined) }
      } as never,
      issue,
      {
        reserve: async () => ({ kind: "reserved" as const }),
        createRemoteIssue,
        recordRemote: vi.fn(async () => undefined),
        complete,
        fail: vi.fn(async () => undefined),
        failAfterRemote: vi.fn(async () => undefined),
        queueManualReview: vi.fn(async () => undefined)
      }
    );

    const retryResult = await syncIssueToForgejo(
      {
        config: { get: async () => ({ forgejoOwner: "acme", forgejoRepo: "repo" }) },
        activity: { log: vi.fn(async () => undefined) }
      } as never,
      issue,
      {
        reserve: async () => ({
          kind: "existing" as const,
          mapping: {
            companyId: "company-dry-run",
            paperclipIssueId: "issue-dry-run-1",
            repoOwner: "acme",
            repoName: "repo",
            dedupeKey: "paperclip-issue:company-dry-run:issue-dry-run-1",
            sourceTitle: payload.title,
            sourceBody: payload.body,
            attachmentMetadata: [],
            manualReviewRequired: false,
            reviewReasonCode: null,
            forgejoIssueId: createdRemoteIssue.id,
            forgejoIssueNumber: createdRemoteIssue.number,
            forgejoIssueUrl: createdRemoteIssue.url,
            forgejoApiUrl: createdRemoteIssue.apiUrl,
            syncStatus: "synced",
            lastError: null
          }
        }),
        createRemoteIssue,
        complete,
        fail: vi.fn(async () => undefined),
        failAfterRemote: vi.fn(async () => undefined),
        queueManualReview: vi.fn(async () => undefined)
      }
    );

    expect(firstResult).toBe("created");
    expect(retryResult).toBe("existing");
    expect(createRemoteIssue).toHaveBeenCalledTimes(1);
    expect(complete).toHaveBeenCalledTimes(2);
  });
});