import { skillAccessRequestContext } from "../services/skill-access.js";
import { createHash } from "node:crypto";
import { and, eq, sql } from "drizzle-orm";
import { activityLog } from "@paperclipai/db";
import { projectToolContext } from "../services/project-tool-context.js";
import { persistActivity, publishActivity } from "../services/activity-log.js";
import { z } from "zod";
import { normalizeProjectRepositoryUrl, resolveProjectRepositorySelection } from "../services/project-repositories.js";
import { toolAccessService } from "../services/tool-access.js";
import { Router, type Request, type Response } from "express";
import type { Db } from "@paperclipai/db";
import { agents, authUsers, companyMemberships, instanceUserRoles, projectAccessMembers } from "@paperclipai/db";
import { inArray } from "drizzle-orm";
import {
  addProjectAccessMemberSchema,
  createProjectSchema,
  projectDiscoverySchema,
  type ProjectDiscoveryPage,
  createProjectWorkspaceSchema,
  deriveProjectUrlKey,
  findWorkspaceCommandDefinition,
  isUuidLike,
  matchWorkspaceRuntimeServiceToCommand,
  normalizeProjectUrlKey,
  updateProjectSchema,
  updateProjectWorkspaceSchema,
  workspaceRuntimeControlTargetSchema,
} from "@paperclipai/shared";
import type { WorkspaceRuntimeDesiredState, WorkspaceRuntimeServiceStateMap } from "@paperclipai/shared";
import { trackProjectCreated } from "@paperclipai/shared/telemetry";
import { validate } from "../middleware/validate.js";
import { accessService, projectService, logActivity, workspaceOperationService } from "../services/index.js";
import { conflict, forbidden, unprocessable } from "../errors.js";
import { externalObjectService } from "../services/external-objects.js";
import { instanceSettingsService } from "../services/instance-settings.js";
import { assertBoard, assertCompanyAccess, getAccessibleResource, getActorInfo } from "./authz.js";
import { ensureProjectAccessMember } from "../services/projects.js";
import {
  buildWorkspaceRuntimeDesiredStatePatch,
  listConfiguredRuntimeServiceEntries,
  runWorkspaceJobForControl,
  startRuntimeServicesForWorkspaceControl,
  stopRuntimeServicesForProjectWorkspace,
} from "../services/workspace-runtime.js";
import {
  assertNoAgentHostWorkspaceCommandMutation,
  collectProjectExecutionWorkspaceCommandPaths,
  collectProjectWorkspaceCommandPaths,
} from "./workspace-command-authz.js";
import { assertCanManageProjectWorkspaceRuntimeServices } from "./workspace-runtime-service-authz.js";
import { getTelemetryClient } from "../telemetry.js";
import { appendWithCap } from "../adapters/utils.js";
import { assertEnvironmentSelectionForCompany } from "./environment-selection.js";
import { environmentService } from "../services/environments.js";
import { secretService } from "../services/secrets.js";

const WORKSPACE_CONTROL_OUTPUT_MAX_CHARS = 256 * 1024;
const SHARED_WORKSPACE_STOP_AND_RESTART_ACTIONS = new Set(["stop", "restart"]);

export function projectRoutes(db: Db) {
  const router = Router();
  router.use(skillAccessRequestContext);
  const svc = projectService(db);

  async function repositoryViewer(req: Request) {
    if (req.actor.type === "board") return { userId: req.actor.userId ?? null, localTrusted: req.actor.source === "local_implicit" };
    const context = await projectToolContext(db, req.actor);
    if (!context.userId) throw forbidden("Repository access requires a responsible user");
    return context;
  }

  async function selectedRepositories(req: Request, companyId: string, ids: string[], existing: import("@paperclipai/shared").ProjectWorkspace[] = []) {
    const viewer = await repositoryViewer(req);
    if (!ids.length) return [];
    const available = await toolAccessService(db).listProjectRepositories(companyId, viewer.userId, viewer.localTrusted);
    return resolveProjectRepositorySelection(ids, available.repositories, existing);
  }
  const access = accessService(db);
  const secretsSvc = secretService(db);
  const workspaceOperations = workspaceOperationService(db);
  const instanceSettings = instanceSettingsService(db);
  const externalObjectsSvc = externalObjectService(db, {
    enabled: async () => (await instanceSettings.getExperimental()).enableExternalObjects === true,
  });
  const strictSecretsMode = process.env.PAPERCLIP_SECRETS_STRICT_MODE === "true";
  const environmentsSvc = environmentService(db);

  /**
   * Managed-sandbox-only policy (`enableManagedSandboxOnly`): a project
   * workspace `cwd` is an absolute path on the execution host. When the policy
   * is on every agent runs in the platform-managed environment, so there is no
   * host for a user to point at and a write that carries a path is refused
   * rather than stored and silently ignored. This is the floor behind the
   * hidden UI field, and it applies to every actor, mirroring how
   * `assertNoAgentHostWorkspaceCommandMutation` floors host-executed commands
   * on these same routes.
   *
   * `cwd: null` still passes: clearing a stale path is exactly what an instance
   * that just turned the policy on needs to do. The settings read only happens
   * when the payload actually carries a path.
   */
  async function assertNoManagedSandboxWorkspacePath(workspacePatch: unknown) {
    if (typeof workspacePatch !== "object" || workspacePatch === null || Array.isArray(workspacePatch)) return;
    const patch = workspacePatch as Record<string, unknown>;
    if (!Object.prototype.hasOwnProperty.call(patch, "cwd")) return;
    if (patch.cwd === null || patch.cwd === undefined) return;
    if ((await instanceSettings.getExperimental()).enableManagedSandboxOnly !== true) return;
    throw unprocessable(
      "This instance runs agents only in the platform-managed environment; local folders are not configurable.",
    );
  }

  async function assertProjectEnvironmentSelection(companyId: string, environmentId: string | null | undefined) {
    if (environmentId === undefined || environmentId === null) return;
    await assertEnvironmentSelectionForCompany(environmentsSvc, companyId, environmentId, {
      allowedDrivers: ["local", "ssh", "sandbox"],
    });
  }

  function readProjectPolicyEnvironmentId(policy: unknown): string | null | undefined {
    if (!policy || typeof policy !== "object" || !("environmentId" in policy)) {
      return undefined;
    }
    const environmentId = (policy as { environmentId?: unknown }).environmentId;
    return typeof environmentId === "string" || environmentId === null ? environmentId : undefined;
  }

  async function resolveCompanyIdForProjectReference(req: Request) {
    const companyIdQuery = req.query.companyId;
    const requestedCompanyId =
      typeof companyIdQuery === "string" && companyIdQuery.trim().length > 0
        ? companyIdQuery.trim()
        : null;
    if (requestedCompanyId) {
      assertCompanyAccess(req, requestedCompanyId);
      return requestedCompanyId;
    }
    if (req.actor.type === "agent" && req.actor.companyId) {
      return req.actor.companyId;
    }
    return null;
  }

  async function normalizeProjectReference(req: Request, rawId: string) {
    if (isUuidLike(rawId)) return rawId;
    const companyId = await resolveCompanyIdForProjectReference(req);
    if (!companyId) return rawId;
    const urlKey = normalizeProjectUrlKey(rawId);
    if (!urlKey) return rawId;
    const visibleProjects = await filterProjectsForActor(
      req,
      await svc.list(companyId, { includeArchived: true }),
    );
    const matches = visibleProjects.filter((project) => deriveProjectUrlKey(project.name, project.id) === urlKey);
    if (matches.length > 1) {
      throw conflict("Project shortname is ambiguous in this company. Use the project ID.");
    }
    return matches[0]?.id ?? rawId;
  }

  async function assertProjectReadAllowed(req: Request, res: Response, project: { id: string; companyId: string }) {
    const decision = await access.decide({
      actor: req.actor,
      action: "project:read",
      resource: { type: "project", companyId: project.companyId, projectId: project.id },
    });
    if (decision.allowed) return true;
    res.status(404).json({ error: "Project not found" });
    return false;
  }

  async function assertProjectWorkspaceWriteAllowed(req: Request, res: Response, project: { id: string; companyId: string }) {
    const assigneeAgentId = req.actor.type === "agent" ? req.actor.agentId ?? null : null;
    const decision = await access.decide({ actor: req.actor, action: "project:write_workspace",
      resource: { type: "issue", companyId: project.companyId, projectId: project.id, assigneeAgentId },
      scope: { projectId: project.id, assigneeAgentId } });
    if (decision.allowed) return true;
    res.status(403).json({ error: decision.explanation });
    return false;
  }

  async function assertCanManageProjectPrivacy(req: Request, res: Response, project: {
    companyId: string; privacyOwnerUserId?: string | null; personalOwnerUserId?: string | null;
  }) {
    const actor = req.actor;
    if (actor.type === "board" && actor.userId) {
      if (actor.source === "local_implicit" || actor.isInstanceAdmin) return true;
      if (actor.userId === project.privacyOwnerUserId || actor.userId === project.personalOwnerUserId) return true;
      const instanceAdmin = actor.source !== "cloud_tenant" && await db.select({ id: instanceUserRoles.id }).from(instanceUserRoles)
        .where(and(eq(instanceUserRoles.userId, actor.userId), eq(instanceUserRoles.role, "instance_admin"))).limit(1).then(rows => rows.length > 0);
      if (instanceAdmin) return true;
      const membership = await db.select({ role: companyMemberships.membershipRole }).from(companyMemberships)
        .where(and(eq(companyMemberships.companyId, project.companyId), eq(companyMemberships.principalType, "user"),
          eq(companyMemberships.principalId, actor.userId), eq(companyMemberships.status, "active"))).limit(1);
      if (["owner", "admin"].includes(membership[0]?.role ?? "")) return true;
    }
    res.status(403).json({ error: "Only the project privacy owner or an administrator can change project access" });
    return false;
  }

  async function addActorAsPrivateProjectPrincipal(req: Request, project: { id: string; companyId: string; privacyOwnerUserId?: string | null; personalOwnerUserId?: string | null }, dbOrTx: Db = db) {
    const ownerUserId = project.privacyOwnerUserId ?? project.personalOwnerUserId;
    if (ownerUserId) await ensureProjectAccessMember(dbOrTx, {
      companyId: project.companyId, projectId: project.id, subjectType: "user", subjectId: ownerUserId,
    });
    if (req.actor.type === "board" && req.actor.userId) {
      await ensureProjectAccessMember(dbOrTx, {
        companyId: project.companyId,
        projectId: project.id,
        subjectType: "user",
        subjectId: req.actor.userId,
      });
      return;
    }
    if (req.actor.type === "agent" && req.actor.agentId) {
      if (req.actor.onBehalfOfUserId) {
        await ensureProjectAccessMember(dbOrTx, {
          companyId: project.companyId,
          projectId: project.id,
          subjectType: "user",
          subjectId: req.actor.onBehalfOfUserId,
        });
      }
      await ensureProjectAccessMember(dbOrTx, {
        companyId: project.companyId,
        projectId: project.id,
        subjectType: "agent",
        subjectId: req.actor.agentId,
      });
    }
  }

  async function enrichProjectAccessMembers(rows: Array<typeof projectAccessMembers.$inferSelect>) {
    const agentIds = rows.filter((row) => row.subjectType === "agent").map((row) => row.subjectId);
    const userIds = rows.filter((row) => row.subjectType === "user").map((row) => row.subjectId);
    const [agentRows, userRows] = await Promise.all([
      agentIds.length === 0
        ? Promise.resolve([])
        : db.select({ id: agents.id, name: agents.name }).from(agents).where(inArray(agents.id, agentIds)),
      userIds.length === 0
        ? Promise.resolve([])
        : db.select({ id: authUsers.id, name: authUsers.name, email: authUsers.email, image: authUsers.image })
            .from(authUsers)
            .where(inArray(authUsers.id, userIds)),
    ]);
    const agentsById = new Map(agentRows.map((row) => [row.id, row]));
    const usersById = new Map(userRows.map((row) => [row.id, row]));
    return rows.map((row) => {
      const agent = row.subjectType === "agent" ? agentsById.get(row.subjectId) : null;
      const user = row.subjectType === "user" ? usersById.get(row.subjectId) : null;
      return {
        ...row,
        subjectDisplayName: agent?.name ?? user?.name ?? user?.email ?? null,
        subjectAvatarUrl: user?.image ?? null,
      };
    });
  }

  async function assertRuntimeManageAllowed(req: Request, res: Response, companyId: string) {
    const decision = await access.decide({
      actor: req.actor,
      action: "runtime:manage",
      resource: { type: "company", companyId },
    });
    if (decision.allowed) return true;
    res.status(403).json({ error: "Runtime service control is outside this actor's authorization boundary" });
    return false;
  }

  async function filterProjectsForActor<T extends { id: string; companyId: string }>(req: Request, rows: T[]) {
    const decisions = await Promise.all(rows.map((project) =>
      access.decide({
        actor: req.actor,
        action: "project:read",
        resource: { type: "project", companyId: project.companyId, projectId: project.id },
      })
    ));
    return rows.filter((_, index) => decisions[index]?.allowed);
  }

  router.param("id", async (req, _res, next, rawId) => {
    try {
      req.params.id = await normalizeProjectReference(req, rawId);
      next();
    } catch (err) {
      next(err);
    }
  });

  router.get("/companies/:companyId/project-repositories", async (req, res) => {
    const companyId = req.params.companyId as string;
    assertCompanyAccess(req, companyId);
    const viewer = await repositoryViewer(req);
    res.json(await toolAccessService(db).listProjectRepositories(companyId, viewer.userId, viewer.localTrusted));
  });

  router.put("/projects/:id/repositories", validate(z.object({ repositoryIds: z.array(z.string().regex(/^\d+$/)) })), async (req, res) => {
    assertBoard(req);
    const project = await getAccessibleResource(req, res, svc.getById(req.params.id as string), "Project not found");
    if (!project) return;
    if (!(await assertProjectReadAllowed(req, res, project))) return;
    if (!(await assertProjectWorkspaceWriteAllowed(req, res, project))) return;
    const repositories = await selectedRepositories(req, project.companyId, req.body.repositoryIds, project.workspaces);
    const updated = await svc.replaceRepositories(project.id, repositories);
    const actor = getActorInfo(req);
    await logActivity(db, {
      companyId: project.companyId, actorType: actor.actorType, actorId: actor.actorId,
      action: "project.repositories_updated", entityType: "project", entityId: project.id,
      details: { repositoryIds: repositories.map((repo) => repo.id) },
    });
    res.json(updated);
  });

  router.get("/companies/:companyId/projects", async (req, res) => {
    const companyId = req.params.companyId as string;
    assertCompanyAccess(req, companyId);
    const includeArchived = req.query.includeArchived === "true";
    if (req.query.view === "summary") {
      const page = projectDiscoverySchema.extend({ limit: z.coerce.number().int().min(1).max(50).default(50) }).parse({
        limit: req.query.limit, cursor: req.query.cursor,
      });
      const candidateIds = await access.projectDiscoveryCandidateIds(req.actor, companyId);
      const visible: ProjectDiscoveryPage["projects"] = [];
      let cursor = page.cursor;
      // Scan bounded projections; authorization runs before selecting the public
      // page/cursor so denied projects neither fill pages nor leak their IDs.
      while (visible.length <= page.limit) {
        const batch = await svc.listSummaries(companyId, { limit: 51, cursor, includeArchived, candidateIds });
        const allowed = await filterProjectsForActor(req, batch.map(project => ({ ...project, companyId })));
        visible.push(...allowed.map(({ companyId: _companyId, ...project }) => project));
        if (batch.length < 51) break;
        cursor = batch.at(-1)!.id;
      }
      const selected = visible.slice(0, page.limit);
      res.json({ projects: selected, nextCursor: visible.length > page.limit ? selected.at(-1)!.id : null } satisfies ProjectDiscoveryPage);
      return;
    }
    const result = await svc.list(companyId, { includeArchived });
    res.json(await filterProjectsForActor(req, result));
  });

  router.get("/projects/:id", async (req, res) => {
    const id = req.params.id as string;
    const project = await getAccessibleResource(req, res, svc.getById(id), "Project not found");
    if (!project) return;
    if (!(await assertProjectReadAllowed(req, res, project))) return;
    res.json(project);
  });

  router.get("/projects/:id/external-object-summary", async (req, res) => {
    const id = req.params.id as string;
    const project = await getAccessibleResource(req, res, svc.getById(id), "Project not found");
    if (!project) return;
    if (!(await assertProjectReadAllowed(req, res, project))) return;
    const summary = await externalObjectsSvc.getProjectSummary(project.id);
    res.json(summary);
  });

  router.post("/companies/:companyId/projects", validate(createProjectSchema), async (req, res) => {
    const companyId = req.params.companyId as string;
    assertCompanyAccess(req, companyId);
    type CreateProjectPayload = Parameters<typeof svc.create>[1] & {
      workspace?: Parameters<typeof svc.createWorkspace>[1];
      repositoryIds?: string[];
    };

    const { workspace, repositoryIds, repositoryUrls, idempotencyKey, ...projectData } = req.body as CreateProjectPayload & { idempotencyKey?: string; repositoryUrls?: string[] };
    projectData.privacyOwnerUserId = req.actor.type === "board" ? req.actor.userId ?? null : req.actor.type === "agent" ? req.actor.onBehalfOfUserId ?? null : null;
    const runContext = req.actor.type === "agent" && req.actor.source === "agent_jwt" && req.actor.runId
      ? await projectToolContext(db, req.actor, true) : null;
    await assertProjectEnvironmentSelection(
      companyId,
      readProjectPolicyEnvironmentId(projectData.executionWorkspacePolicy),
    );
    assertNoAgentHostWorkspaceCommandMutation(
      req,
      [
        ...collectProjectExecutionWorkspaceCommandPaths(projectData.executionWorkspacePolicy),
        ...collectProjectWorkspaceCommandPaths(workspace, "workspace"),
      ],
    );
    await assertNoManagedSandboxWorkspacePath(workspace);
    if (projectData.env !== undefined) {
      projectData.env = await secretsSvc.normalizeEnvBindingsForPersistence(
        companyId,
        projectData.env,
        { strictMode: strictSecretsMode, fieldPath: "env" },
      );
    }
    if (workspace && (repositoryIds || repositoryUrls)) throw unprocessable("Use either workspace or repositoryIds/repositoryUrls when creating a project");
    const urlRepositories = (repositoryUrls ?? []).map(normalizeProjectRepositoryUrl);
    const repositories = repositoryIds ? await selectedRepositories(req, companyId, repositoryIds) : null;
    const actor = getActorInfo(req);
    const fingerprint = createHash("sha256").update(JSON.stringify({ projectData, workspace, repositoryIds, repositoryUrls })).digest("hex");
    const receiptKey = idempotencyKey ? `project:${companyId}:${actor.actorId}:${runContext?.issue.id ?? "board"}:${idempotencyKey}` : null;
    const result = await db.transaction(async (tx) => {
      if (receiptKey) {
        await tx.execute(sql`select pg_advisory_xact_lock(hashtextextended(${receiptKey}, 0))`);
        const [prior] = await tx.select().from(activityLog).where(and(
          eq(activityLog.companyId, companyId), eq(activityLog.action, "project.created"),
          sql`${activityLog.details}->>'idempotencyKey' = ${receiptKey}`,
        ));
        if (prior) {
          if (prior.details?.fingerprint !== fingerprint) throw conflict("Project idempotency key was used with different inputs");
          const project = await projectService(tx as unknown as Db).getById(prior.entityId);
          if (!project) throw conflict("Previously created project is no longer available");
          return { project, publication: null, duplicate: true };
        }
      }
      if (runContext) await projectToolContext(tx as unknown as Db, req.actor, true);
      const service = projectService(tx as unknown as Db);
      const project = repositories ? await service.createWithRepositories(companyId, projectData, repositories) : await service.create(companyId, projectData);
      if (project.visibility === "private") await addActorAsPrivateProjectPrincipal(req, project, tx as unknown as Db);
      const attachedUrls = new Set((repositories ?? []).map(repo => repo.url.toLowerCase()));
      const registeredUrls: typeof urlRepositories = [];
      for (const repo of urlRepositories) {
        if (attachedUrls.has(repo.url.toLowerCase())) continue;
        attachedUrls.add(repo.url.toLowerCase());
        await service.createWorkspace(project.id, { name: repo.fullName, repoUrl: repo.url });
        registeredUrls.push(repo);
      }
      const createdWorkspace = workspace ? await service.createWorkspace(project.id, workspace) : null;
      if (workspace && !createdWorkspace) throw unprocessable("Invalid project workspace payload");
      const hydrated = await service.getById(project.id);
      const activity = await persistActivity(tx as unknown as Db, {
        companyId, actorType: actor.actorType, actorId: actor.actorId, agentId: actor.agentId,
        runId: actor.runId, issueId: runContext?.issue.id,
        action: "project.created", entityType: "project", entityId: project.id,
        details: {
          name: project.name, description: project.description, icon: project.icon,
          sourceIssueId: runContext?.issue.id ?? null,
          repositories: [...(repositories ?? []).map(repo => ({ id: repo.id, name: repo.fullName, url: repo.url })), ...registeredUrls.map(repo => ({ id: repo.url, name: repo.fullName, url: repo.url })),
            ...(createdWorkspace?.repoUrl ? [{ id: createdWorkspace.id, name: createdWorkspace.name, url: createdWorkspace.repoUrl }] : []),
          ],
          workspaceId: createdWorkspace?.id ?? null,
          envKeys: project.env ? Object.keys(project.env).sort() : [],
          ...(receiptKey ? { idempotencyKey: receiptKey, fingerprint } : {}),
        },
      });
      return { project: hydrated ?? project, publication: activity.publication, duplicate: false };
    });
    if (result.publication) publishActivity(result.publication);
    if (result.project.env) await secretsSvc.syncEnvBindingsForTarget?.(companyId, { targetType: "project", targetId: result.project.id }, result.project.env);
    if (result.duplicate) { res.status(200).json(result.project); return; }
    const telemetryClient = getTelemetryClient();
    if (telemetryClient) {
      trackProjectCreated(telemetryClient);
    }
    res.status(result.duplicate ? 200 : 201).json(result.project);
  });

  router.patch("/projects/:id", validate(updateProjectSchema), async (req, res) => {
    const id = req.params.id as string;
    const existing = await getAccessibleResource(req, res, svc.getById(id), "Project not found");
    if (!existing) return;
    if (!(await assertProjectReadAllowed(req, res, existing))) return;
    const body = { ...req.body };
    if (body.visibility !== undefined) {
      if (!(await assertCanManageProjectPrivacy(req, res, existing))) return;
    }
    if (body.visibility === "private") await addActorAsPrivateProjectPrincipal(req, existing);
    assertNoAgentHostWorkspaceCommandMutation(
      req,
      collectProjectExecutionWorkspaceCommandPaths(body.executionWorkspacePolicy),
    );
    await assertProjectEnvironmentSelection(
      existing.companyId,
      readProjectPolicyEnvironmentId(body.executionWorkspacePolicy),
    );
    if (typeof body.archivedAt === "string") {
      body.archivedAt = new Date(body.archivedAt);
    }
    if (body.env !== undefined) {
      body.env = await secretsSvc.normalizeEnvBindingsForPersistence(existing.companyId, body.env, {
        strictMode: strictSecretsMode,
        fieldPath: "env",
      });
    }
    const project = await svc.update(id, body);
    if (!project) {
      res.status(404).json({ error: "Project not found" });
      return;
    }
    if (body.env !== undefined) {
      await secretsSvc.syncEnvBindingsForTarget?.(
        project.companyId,
        { targetType: "project", targetId: project.id },
        project.env,
      );
    }

    const actor = getActorInfo(req);
    await logActivity(db, {
      companyId: project.companyId,
      actorType: actor.actorType,
      actorId: actor.actorId,
      agentId: actor.agentId,
      action: "project.updated",
      entityType: "project",
      entityId: project.id,
      details: {
        changedKeys: Object.keys(req.body).sort(),
        envKeys:
          body.env && typeof body.env === "object" && !Array.isArray(body.env)
            ? Object.keys(body.env as Record<string, unknown>).sort()
            : undefined,
      },
    });

    res.json(project);
  });

  router.get("/projects/:id/access-members", async (req, res) => {
    const id = req.params.id as string;
    const project = await getAccessibleResource(req, res, svc.getById(id), "Project not found");
    if (!project || !(await assertProjectReadAllowed(req, res, project))) return;
    const rows = await db
      .select()
      .from(projectAccessMembers)
      .where(and(eq(projectAccessMembers.companyId, project.companyId), eq(projectAccessMembers.projectId, project.id)));
    res.json(await enrichProjectAccessMembers(rows));
  });

  router.post("/projects/:id/access-members", validate(addProjectAccessMemberSchema), async (req, res) => {
    assertBoard(req);
    const id = req.params.id as string;
    const project = await getAccessibleResource(req, res, svc.getById(id), "Project not found");
    if (!project || !(await assertProjectReadAllowed(req, res, project))) return;
    if (!(await assertCanManageProjectPrivacy(req, res, project))) return;
    const subjectType = req.body.subjectType as "user" | "agent";
    const subjectId = req.body.subjectId as string;
    const subjectExists = subjectType === "agent"
      ? await db.select({ id: agents.id }).from(agents)
          .where(and(eq(agents.id, subjectId), eq(agents.companyId, project.companyId)))
          .then((rows) => rows.length > 0)
      : await db.select({ id: companyMemberships.id }).from(companyMemberships)
          .where(and(
            eq(companyMemberships.principalType, "user"),
            eq(companyMemberships.principalId, subjectId),
            eq(companyMemberships.companyId, project.companyId),
            eq(companyMemberships.status, "active"),
          ))
          .then((rows) => rows.length > 0);
    if (!subjectExists) {
      res.status(422).json({ error: "Project access member must belong to this company" });
      return;
    }
    await ensureProjectAccessMember(db, { companyId: project.companyId, projectId: project.id, subjectType, subjectId });
    const rows = await db.select().from(projectAccessMembers).where(and(
      eq(projectAccessMembers.projectId, project.id),
      eq(projectAccessMembers.subjectType, subjectType),
      eq(projectAccessMembers.subjectId, subjectId),
    ));
    const [member] = await enrichProjectAccessMembers(rows);
    const actor = getActorInfo(req);
    await logActivity(db, {
      companyId: project.companyId,
      actorType: actor.actorType,
      actorId: actor.actorId,
      agentId: actor.agentId,
      action: "project.access_member_added",
      entityType: "project",
      entityId: project.id,
      details: { subjectType, subjectId },
    });
    res.status(201).json(member);
  });

  router.delete("/projects/:id/access-members/:memberId", async (req, res) => {
    assertBoard(req);
    const id = req.params.id as string;
    const project = await getAccessibleResource(req, res, svc.getById(id), "Project not found");
    if (!project || !(await assertProjectReadAllowed(req, res, project))) return;
    if (!(await assertCanManageProjectPrivacy(req, res, project))) return;
    const member = await db.select().from(projectAccessMembers).where(and(
      eq(projectAccessMembers.id, req.params.memberId as string),
      eq(projectAccessMembers.companyId, project.companyId),
      eq(projectAccessMembers.projectId, project.id),
    )).then((rows) => rows[0] ?? null);
    if (!member) {
      res.status(404).json({ error: "Project access member not found" });
      return;
    }
    if (member.subjectType === "user" && [project.personalOwnerUserId, project.privacyOwnerUserId].includes(member.subjectId)) {
      res.status(422).json({ error: "The project privacy owner cannot be removed" });
      return;
    }
    await db.delete(projectAccessMembers).where(eq(projectAccessMembers.id, member.id));
    const actor = getActorInfo(req);
    await logActivity(db, {
      companyId: project.companyId,
      actorType: actor.actorType,
      actorId: actor.actorId,
      agentId: actor.agentId,
      action: "project.access_member_removed",
      entityType: "project",
      entityId: project.id,
      details: { subjectType: member.subjectType, subjectId: member.subjectId },
    });
    res.json(member);
  });

  router.get("/projects/:id/workspaces", async (req, res) => {
    const id = req.params.id as string;
    const existing = await getAccessibleResource(req, res, svc.getById(id), "Project not found");
    if (!existing) return;
    if (!(await assertProjectReadAllowed(req, res, existing))) return;
    const workspaces = await svc.listWorkspaces(id);
    res.json(workspaces);
  });

  router.post("/projects/:id/workspaces", validate(createProjectWorkspaceSchema), async (req, res) => {
    const id = req.params.id as string;
    const existing = await getAccessibleResource(req, res, svc.getById(id), "Project not found");
    if (!existing) return;
    if (!(await assertProjectReadAllowed(req, res, existing))) return;
    if (!(await assertProjectWorkspaceWriteAllowed(req, res, existing))) return;
    assertNoAgentHostWorkspaceCommandMutation(
      req,
      collectProjectWorkspaceCommandPaths(req.body),
    );
    await assertNoManagedSandboxWorkspacePath(req.body);
    const workspace = await svc.createWorkspace(id, req.body);
    if (!workspace) {
      res.status(422).json({ error: "Invalid project workspace payload" });
      return;
    }

    const actor = getActorInfo(req);
    await logActivity(db, {
      companyId: existing.companyId,
      actorType: actor.actorType,
      actorId: actor.actorId,
      agentId: actor.agentId,
      action: "project.workspace_created",
      entityType: "project",
      entityId: id,
      details: {
        workspaceId: workspace.id,
        name: workspace.name,
        cwd: workspace.cwd,
        isPrimary: workspace.isPrimary,
      },
    });

    res.status(201).json(workspace);
  });

  router.patch(
    "/projects/:id/workspaces/:workspaceId",
    validate(updateProjectWorkspaceSchema),
    async (req, res) => {
      const id = req.params.id as string;
      const workspaceId = req.params.workspaceId as string;
      const existing = await getAccessibleResource(req, res, svc.getById(id), "Project not found");
      if (!existing) return;
      if (!(await assertProjectReadAllowed(req, res, existing))) return;
    if (!(await assertProjectWorkspaceWriteAllowed(req, res, existing))) return;
      assertNoAgentHostWorkspaceCommandMutation(
        req,
        collectProjectWorkspaceCommandPaths(req.body),
      );
      await assertNoManagedSandboxWorkspacePath(req.body);
      const workspaceExists = (await svc.listWorkspaces(id)).some((workspace) => workspace.id === workspaceId);
      if (!workspaceExists) {
        res.status(404).json({ error: "Project workspace not found" });
        return;
      }
      const workspace = await svc.updateWorkspace(id, workspaceId, req.body);
      if (!workspace) {
        res.status(422).json({ error: "Invalid project workspace payload" });
        return;
      }

      const actor = getActorInfo(req);
      await logActivity(db, {
        companyId: existing.companyId,
        actorType: actor.actorType,
        actorId: actor.actorId,
        agentId: actor.agentId,
        action: "project.workspace_updated",
        entityType: "project",
        entityId: id,
        details: {
          workspaceId: workspace.id,
          changedKeys: Object.keys(req.body).sort(),
        },
      });

      res.json(workspace);
    },
  );

  async function handleProjectWorkspaceRuntimeCommand(req: Request, res: Response) {
    const id = req.params.id as string;
    const workspaceId = req.params.workspaceId as string;
    const action = String(req.params.action ?? "").trim().toLowerCase();
    if (action !== "start" && action !== "stop" && action !== "restart" && action !== "run") {
      res.status(404).json({ error: "Workspace command action not found" });
      return;
    }

    const project = await getAccessibleResource(req, res, svc.getById(id), "Project not found");
    if (!project) return;
    if (!(await assertProjectReadAllowed(req, res, project))) return;

    const workspace = project.workspaces.find((entry) => entry.id === workspaceId) ?? null;
    if (!workspace) {
      res.status(404).json({ error: "Project workspace not found" });
      return;
    }
    if (!(await assertRuntimeManageAllowed(req, res, project.companyId))) return;

    const isSharedWorkspace = Boolean(workspace.sharedWorkspaceKey);
    if (
      req.actor.type === "agent"
      && isSharedWorkspace
      && SHARED_WORKSPACE_STOP_AND_RESTART_ACTIONS.has(action)
    ) {
      throw forbidden("Missing permission to manage workspace runtime services");
    }

    await assertCanManageProjectWorkspaceRuntimeServices(db, req, {
      companyId: project.companyId,
      projectWorkspaceId: workspace.id,
    });

    const workspaceCwd = workspace.cwd;
    if (!workspaceCwd) {
      res.status(422).json({ error: "Project workspace needs a local path before Paperclip can run workspace commands" });
      return;
    }

    const runtimeConfig = workspace.runtimeConfig?.workspaceRuntime ?? null;
    const target = req.body as { workspaceCommandId?: string | null; runtimeServiceId?: string | null; serviceIndex?: number | null };
    const configuredServices = runtimeConfig ? listConfiguredRuntimeServiceEntries({ workspaceRuntime: runtimeConfig }) : [];
    const workspaceCommand = runtimeConfig
      ? findWorkspaceCommandDefinition(runtimeConfig, target.workspaceCommandId ?? null)
      : null;
    if (target.workspaceCommandId && !workspaceCommand) {
      res.status(404).json({ error: "Workspace command not found for this project workspace" });
      return;
    }
    if (target.runtimeServiceId && !(workspace.runtimeServices ?? []).some((service) => service.id === target.runtimeServiceId)) {
      res.status(404).json({ error: "Runtime service not found for this project workspace" });
      return;
    }
    const matchedRuntimeService =
      workspaceCommand?.kind === "service" && !target.runtimeServiceId
        ? matchWorkspaceRuntimeServiceToCommand(workspaceCommand, workspace.runtimeServices ?? [])
        : null;
    const selectedRuntimeServiceId = target.runtimeServiceId ?? matchedRuntimeService?.id ?? null;
    const selectedServiceIndex =
      workspaceCommand?.kind === "service"
        ? workspaceCommand.serviceIndex
        : target.serviceIndex ?? null;
    if (
      selectedServiceIndex !== undefined
      && selectedServiceIndex !== null
      && (selectedServiceIndex < 0 || selectedServiceIndex >= configuredServices.length)
    ) {
      res.status(422).json({ error: "Selected runtime service is not defined in this project workspace runtime config" });
      return;
    }
    if (workspaceCommand?.kind === "job" && action !== "run") {
      res.status(422).json({ error: `Workspace job "${workspaceCommand.name}" can only be run` });
      return;
    }
    if (workspaceCommand?.kind === "service" && action === "run") {
      res.status(422).json({ error: `Workspace service "${workspaceCommand.name}" should be started or restarted, not run` });
      return;
    }
    if (action === "run" && !workspaceCommand) {
      res.status(422).json({ error: "Select a workspace job to run" });
      return;
    }
    if ((action === "start" || action === "restart") && !runtimeConfig) {
      res.status(422).json({ error: "Project workspace has no workspace command configuration" });
      return;
    }

    const actor = getActorInfo(req);
    const recorder = workspaceOperations.createRecorder({ companyId: project.companyId });
    let runtimeServiceCount = workspace.runtimeServices?.length ?? 0;
    let stdout = "";
    let stderr = "";

    const operation = await recorder.recordOperation({
      phase: action === "stop" ? "workspace_teardown" : "workspace_provision",
      command: workspaceCommand?.command ?? `workspace command ${action}`,
      cwd: workspace.cwd,
      metadata: {
        action,
        projectId: project.id,
        projectWorkspaceId: workspace.id,
        workspaceCommandId: workspaceCommand?.id ?? target.workspaceCommandId ?? null,
        workspaceCommandKind: workspaceCommand?.kind ?? null,
        workspaceCommandName: workspaceCommand?.name ?? null,
        runtimeServiceId: selectedRuntimeServiceId,
        serviceIndex: selectedServiceIndex,
      },
      run: async () => {
        if (action === "run") {
          if (!workspaceCommand || workspaceCommand.kind !== "job") {
            throw new Error("Workspace job selection is required");
          }
          return await runWorkspaceJobForControl({
            actor: {
              id: actor.agentId ?? null,
              name: actor.actorType === "user" ? "Board" : "Agent",
              companyId: project.companyId,
            },
            issue: null,
            workspace: {
              baseCwd: workspaceCwd,
              source: "project_primary",
              projectId: project.id,
              workspaceId: workspace.id,
              repoUrl: workspace.repoUrl,
              repoRef: workspace.repoRef,
              strategy: "project_primary",
              cwd: workspaceCwd,
              branchName: workspace.defaultRef ?? workspace.repoRef ?? null,
              worktreePath: null,
              warnings: [],
              created: false,
              branchCreatedByRuntime: false,
            },
            command: workspaceCommand.rawConfig,
            adapterEnv: {},
            recorder,
            metadata: {
              action,
              projectId: project.id,
              projectWorkspaceId: workspace.id,
              workspaceCommandId: workspaceCommand.id,
            },
          }).then((nestedOperation) => ({
            status: "succeeded" as const,
            exitCode: 0,
            metadata: {
              nestedOperationId: nestedOperation?.id ?? null,
              runtimeServiceCount,
            },
          }));
        }

        const onLog = async (stream: "stdout" | "stderr", chunk: string) => {
          if (stream === "stdout") stdout = appendWithCap(stdout, chunk, WORKSPACE_CONTROL_OUTPUT_MAX_CHARS);
          else stderr = appendWithCap(stderr, chunk, WORKSPACE_CONTROL_OUTPUT_MAX_CHARS);
        };

        if (action === "stop" || action === "restart") {
          await stopRuntimeServicesForProjectWorkspace({
            db,
            projectWorkspaceId: workspace.id,
            runtimeServiceId: selectedRuntimeServiceId,
          });
        }

        if (action === "start" || action === "restart") {
          const startedServices = await startRuntimeServicesForWorkspaceControl({
            db,
            actor: {
              id: actor.agentId ?? null,
              name: actor.actorType === "user" ? "Board" : "Agent",
              companyId: project.companyId,
            },
            issue: null,
            workspace: {
              baseCwd: workspaceCwd,
              source: "project_primary",
              projectId: project.id,
              workspaceId: workspace.id,
              repoUrl: workspace.repoUrl,
              repoRef: workspace.repoRef,
              strategy: "project_primary",
              cwd: workspaceCwd,
              branchName: workspace.defaultRef ?? workspace.repoRef ?? null,
              worktreePath: null,
              warnings: [],
              created: false,
              branchCreatedByRuntime: false,
            },
            config: { workspaceRuntime: runtimeConfig },
            adapterEnv: {},
            onLog,
            serviceIndex: selectedServiceIndex,
            runtimeServiceId: selectedRuntimeServiceId,
          });
          runtimeServiceCount = startedServices.length;
        } else {
          runtimeServiceCount = selectedRuntimeServiceId ? Math.max(0, (workspace.runtimeServices?.length ?? 1) - 1) : 0;
        }

        const currentDesiredState: WorkspaceRuntimeDesiredState =
          workspace.runtimeConfig?.desiredState
          ?? ((workspace.runtimeServices ?? []).some((service) =>
            service.status === "provisioning" || service.status === "starting" || service.status === "running"
          )
            ? "running"
            : "stopped");
        const nextRuntimeState: {
          desiredState: WorkspaceRuntimeDesiredState;
          serviceStates: WorkspaceRuntimeServiceStateMap | null | undefined;
        } = selectedRuntimeServiceId && (selectedServiceIndex === undefined || selectedServiceIndex === null)
          ? {
              desiredState: currentDesiredState,
              serviceStates: workspace.runtimeConfig?.serviceStates ?? null,
            }
          : buildWorkspaceRuntimeDesiredStatePatch({
              config: { workspaceRuntime: runtimeConfig },
              currentDesiredState,
              currentServiceStates: workspace.runtimeConfig?.serviceStates ?? null,
              action,
              serviceIndex: selectedServiceIndex,
            });
        await svc.updateWorkspace(project.id, workspace.id, {
          runtimeConfig: {
            desiredState: nextRuntimeState.desiredState,
            serviceStates: nextRuntimeState.serviceStates,
          },
        });

        return {
          status: "succeeded",
          stdout,
          stderr,
          system:
            action === "stop"
              ? "Stopped project workspace runtime services.\nThis does not pause issue work or held wake scheduling."
              : action === "restart"
                ? "Restarted project workspace runtime services.\nThis does not pause issue work or held wake scheduling."
                : "Started project workspace runtime services.\n",
          metadata: {
            runtimeServiceCount,
            workspaceCommandId: workspaceCommand?.id ?? target.workspaceCommandId ?? null,
            runtimeServiceId: selectedRuntimeServiceId,
            serviceIndex: selectedServiceIndex,
          },
        };
      },
    });

    const updatedWorkspace = (await svc.listWorkspaces(project.id)).find((entry) => entry.id === workspace.id) ?? workspace;

    await logActivity(db, {
      companyId: project.companyId,
      actorType: actor.actorType,
      actorId: actor.actorId,
      agentId: actor.agentId,
      action: `project.workspace_runtime_${action}`,
      entityType: "project",
      entityId: project.id,
      details: {
        projectWorkspaceId: workspace.id,
        runtimeServiceCount,
        workspaceCommandId: workspaceCommand?.id ?? target.workspaceCommandId ?? null,
        workspaceCommandKind: workspaceCommand?.kind ?? null,
        workspaceCommandName: workspaceCommand?.name ?? null,
        runtimeServiceId: selectedRuntimeServiceId,
        serviceIndex: selectedServiceIndex,
      },
    });

    res.json({
      workspace: updatedWorkspace,
      operation,
    });
  }

  router.post("/projects/:id/workspaces/:workspaceId/runtime-services/:action", validate(workspaceRuntimeControlTargetSchema), handleProjectWorkspaceRuntimeCommand);
  router.post("/projects/:id/workspaces/:workspaceId/runtime-commands/:action", validate(workspaceRuntimeControlTargetSchema), handleProjectWorkspaceRuntimeCommand);

  router.delete("/projects/:id/workspaces/:workspaceId", async (req, res) => {
    const id = req.params.id as string;
    const workspaceId = req.params.workspaceId as string;
    const existing = await getAccessibleResource(req, res, svc.getById(id), "Project not found");
    if (!existing) return;
    if (!(await assertProjectReadAllowed(req, res, existing))) return;
    if (!(await assertProjectWorkspaceWriteAllowed(req, res, existing))) return;
    const workspace = await svc.removeWorkspace(id, workspaceId);
    if (!workspace) {
      res.status(404).json({ error: "Project workspace not found" });
      return;
    }

    const actor = getActorInfo(req);
    await logActivity(db, {
      companyId: existing.companyId,
      actorType: actor.actorType,
      actorId: actor.actorId,
      agentId: actor.agentId,
      action: "project.workspace_deleted",
      entityType: "project",
      entityId: id,
      details: {
        workspaceId: workspace.id,
        name: workspace.name,
      },
    });

    res.json(workspace);
  });

  router.delete("/projects/:id", async (req, res) => {
    const id = req.params.id as string;
    const existing = await getAccessibleResource(req, res, svc.getById(id), "Project not found");
    if (!existing) return;
    if (!(await assertProjectReadAllowed(req, res, existing))) return;
    const project = await svc.remove(id);
    if (!project) {
      res.status(404).json({ error: "Project not found" });
      return;
    }

    const actor = getActorInfo(req);
    await logActivity(db, {
      companyId: project.companyId,
      actorType: actor.actorType,
      actorId: actor.actorId,
      agentId: actor.agentId,
      action: "project.deleted",
      entityType: "project",
      entityId: project.id,
    });

    res.json(project);
  });

  return router;
}