import { describe, expect, it } from "vitest";
import { isSafeGitProjectSourcePath } from "../src/services/gitSourceSync.js";
import { chooseNextAutonomyWork } from "../src/services/autonomyScheduler.js";
import {
  buildRepositoryAutonomyRoadmap,
  isRepositoryManagedRoadmap,
  mergeRepositoryAutonomyRoadmap,
} from "../src/services/repositoryAutonomy.js";

const roadmapSource = {
  path: "ROADMAP.md",
  content: `# Phoenix roadmap

## M1 — Safe software foundation
Build the strict software foundation while lab qualification can happen independently.

## M2 — K3s lab
Provision only after the external lab gate is cleared.`,
  contentSha: "roadmap-sha",
};

const backlogSource = (extraTasks: Array<Record<string, unknown>> = []) => ({
  path: "docs/implementation/backlog.json",
  contentSha: `backlog-sha-${extraTasks.length}`,
  content: JSON.stringify({
    schema_version: "1.0",
    project: "Phoenix",
    execution_enabled: false,
    tasks: [
      {
        id: "PHX-001",
        title: "Read-only lab qualification",
        milestone: "M1",
        depends_on: [],
        requirements: ["R02"],
        plan: "docs/implementation/01-foundation.md",
        execution: "qualification",
        status: "blocked_external",
        evidence: [],
        verified_commit: null,
      },
      {
        id: "PHX-002",
        title: "Strict contracts and development harness",
        milestone: "M1",
        depends_on: [],
        requirements: ["R03"],
        plan: "docs/implementation/01-foundation.md",
        execution: "code",
        status: "planned",
        evidence: [],
        verified_commit: null,
      },
      {
        id: "PHX-003",
        title: "API, database, durable jobs and outbox",
        milestone: "M1",
        depends_on: ["PHX-002"],
        requirements: ["R04"],
        plan: "docs/implementation/01-foundation.md",
        execution: "code",
        status: "planned",
        evidence: [],
        verified_commit: null,
      },
      {
        id: "PHX-006",
        title: "Safe K3s bootstrap",
        milestone: "M2",
        depends_on: ["PHX-001", "PHX-002"],
        requirements: ["R06"],
        plan: "docs/implementation/01-foundation.md",
        execution: "lab",
        status: "planned",
        evidence: [],
        verified_commit: null,
      },
      ...extraTasks,
    ],
  }),
});

describe("repository-native Auto Mode", () => {
  it("syncs planning truth without opening the source filter to arbitrary JSON", () => {
    expect(isSafeGitProjectSourcePath("ROADMAP.md")).toBe(true);
    expect(isSafeGitProjectSourcePath("docs/implementation/backlog.json")).toBe(true);
    expect(isSafeGitProjectSourcePath("docs/implementation/roadmap.json")).toBe(true);
    expect(isSafeGitProjectSourcePath("docs/implementation/random-data.json")).toBe(false);
    expect(isSafeGitProjectSourcePath("config/backlog.json")).toBe(false);
    expect(isSafeGitProjectSourcePath(".env")).toBe(false);
  });

  it("turns a structured repository backlog into dependency-aware autonomous work", () => {
    const roadmap = buildRepositoryAutonomyRoadmap({
      roadmap: roadmapSource,
      backlog: backlogSource(),
      importedAt: "2026-09-21T12:00:00.000Z",
    });

    expect(roadmap).toBeDefined();
    expect(isRepositoryManagedRoadmap(roadmap)).toBe(true);
    expect(roadmap?.phases.map((phase) => phase.title)).toEqual([
      "M1 — Safe software foundation",
      "M2 — K3s lab",
    ]);

    const items = new Map(roadmap?.phases.flatMap((phase) => phase.items).map((item) => [item.id, item]));
    expect(items.get("PHX-001")).toMatchObject({ status: "pending", waitingExternal: true, source: "roadmap" });
    expect(items.get("PHX-002")).toMatchObject({ status: "pending", scope: "committed" });
    expect(items.get("PHX-002")).not.toHaveProperty("waitingExternal");
    expect(items.get("PHX-003")).toMatchObject({ dependsOn: ["PHX-002"] });
    expect(items.get("PHX-006")).toMatchObject({ waitingExternal: true, dependsOn: ["PHX-001", "PHX-002"] });
    expect(roadmap?.phases.every((phase) => phase.brainstormConverged)).toBe(true);

    const next = chooseNextAutonomyWork(roadmap!.phases, roadmap!.currentPhaseIndex, "balanced");
    expect(next?.item.id).toBe("PHX-002");
  });

  it("does not let a planning refresh newly complete an existing runtime item", () => {
    const current = buildRepositoryAutonomyRoadmap({
      roadmap: roadmapSource,
      backlog: backlogSource(),
      importedAt: "2026-09-21T12:00:00.000Z",
    })!;
    const currentItem = current.phases.flatMap((phase) => phase.items).find((item) => item.id === "PHX-002")!;
    currentItem.status = "pending";

    const verifiedBacklog = JSON.parse(backlogSource().content) as { tasks: Array<Record<string, unknown>> };
    const task = verifiedBacklog.tasks.find((entry) => entry.id === "PHX-002")!;
    task.status = "verified";
    task.verified_commit = "deadbeef";

    const incoming = buildRepositoryAutonomyRoadmap({
      roadmap: { ...roadmapSource, contentSha: "roadmap-sha-verified" },
      backlog: { ...backlogSource(), content: JSON.stringify(verifiedBacklog), contentSha: "backlog-sha-verified" },
      importedAt: "2026-09-21T13:00:00.000Z",
    })!;

    const reconciled = mergeRepositoryAutonomyRoadmap(current, incoming);
    const item = reconciled.phases.flatMap((phase) => phase.items).find((entry) => entry.id === "PHX-002")!;
    expect(item.status).toBe("pending");
  });

  it("preserves verified runtime progress and explicit assignments when repository planning changes", () => {
    const current = buildRepositoryAutonomyRoadmap({
      roadmap: roadmapSource,
      backlog: backlogSource(),
      importedAt: "2026-09-21T12:00:00.000Z",
    })!;
    const phx002 = current.phases.flatMap((phase) => phase.items).find((item) => item.id === "PHX-002")!;
    phx002.status = "completed";
    phx002.attempts = 2;
    phx002.deliveryId = "delivery-phx-002";
    phx002.completionEvidence = ["merge:abc"];

    current.phases[0].items.unshift({
      id: "assignment-1",
      title: "Explicit owner task",
      instruction: "Keep this assignment across repo refreshes.",
      source: "user_assignment",
      status: "pending",
      attempts: 0,
    });

    const incoming = buildRepositoryAutonomyRoadmap({
      roadmap: { ...roadmapSource, contentSha: "roadmap-sha-2" },
      backlog: backlogSource([{
        id: "PHX-004",
        title: "Auth and target guard",
        milestone: "M1",
        depends_on: ["PHX-003"],
        requirements: ["R05"],
        plan: "docs/implementation/01-foundation.md",
        execution: "code",
        status: "planned",
        evidence: [],
        verified_commit: null,
      }]),
      importedAt: "2026-09-21T13:00:00.000Z",
    })!;

    const reconciled = mergeRepositoryAutonomyRoadmap(current, incoming);
    const items = new Map(reconciled.phases.flatMap((phase) => phase.items).map((item) => [item.id, item]));

    expect(items.get("PHX-002")).toMatchObject({
      status: "completed",
      attempts: 2,
      deliveryId: "delivery-phx-002",
      completionEvidence: expect.arrayContaining(["merge:abc"]),
    });
    expect(items.get("assignment-1")).toMatchObject({ source: "user_assignment", status: "pending" });
    expect(items.get("PHX-004")).toMatchObject({ dependsOn: ["PHX-003"], status: "pending" });
  });
});