// @generated by scripts/build-runtime.mjs; do not edit.
// @ts-nocheck -- generated JavaScript uses a .ts extension for Pi's Jiti loader.
import {
  safeTerminalText
} from "./chunk-W64NEHXT.ts";
import {
  syncConfigReviewFingerprint
} from "./chunk-APZVBSM6.ts";
import {
  inspectRemoteSelection,
  remoteSelectionMismatch,
  sameSyncInclude,
  snapshotSelectionInclude
} from "./chunk-YQ6UW7IF.ts";

// src/backend-factory.ts
var createSyncBackend = async (config) => {
  switch (config.backend.type) {
    case "s3": {
      const { S3SyncBackend } = await import("./s3-backend-3QZGO2EF.ts");
      return new S3SyncBackend(config.backend);
    }
    case "webdav": {
      const { WebDavSyncBackend } = await import("./webdav-backend-ZD5RHRIU.ts");
      return new WebDavSyncBackend(config.backend);
    }
    case "git": {
      const { GitSyncBackend } = await import("./git-backend-E3UOUUOM.ts");
      return new GitSyncBackend(config.backend);
    }
  }
};

// src/remote-snapshot.ts
async function readSnapshotForHead(backend, head, signal) {
  const snapshot = await backend.readSnapshot(head.snapshotRef, signal);
  if (signal?.aborted) {
    throw signal.reason instanceof Error ? signal.reason : new DOMException("The operation was aborted", "AbortError");
  }
  if (snapshot.id !== head.snapshotId) {
    throw new Error(
      `Remote head ${head.snapshotId} resolved to unexpected snapshot ${snapshot.id}.`
    );
  }
  if (head.selection) {
    const snapshotInclude = snapshotSelectionInclude(snapshot);
    if (!snapshotInclude || !sameSyncInclude(head.selection.include, snapshotInclude)) {
      throw new Error("Remote head selection does not match its immutable snapshot.");
    }
  }
  return snapshot;
}
function requireCompatibleRemoteSelection(config, snapshot) {
  const state = inspectRemoteSelection(config.include, snapshot);
  if (state.kind === "different") {
    throw remoteSelectionMismatch(config, state.include, syncConfigReviewFingerprint(config));
  }
}
function formatRemoteSelectionStatus(state) {
  if (!state) return "remote included content: unavailable (remote is empty)";
  if (state.kind === "same") return "remote included content: matches this setup";
  if (state.kind === "legacy") {
    return `remote included content: unavailable in legacy snapshot (${state.discovered.length} path${state.discovered.length === 1 ? "" : "s"} discovered, partial)`;
  }
  return [
    "remote included content: differs from this setup",
    `remote-only selection: ${safeList(state.remoteOnly)}`,
    `local-only selection: ${safeList(state.localOnly)}`
  ].join("\n");
}
function safeList(values) {
  return values.length > 0 ? values.map(safeTerminalText).join(", ") : "none";
}

export {
  createSyncBackend,
  readSnapshotForHead,
  requireCompatibleRemoteSelection,
  formatRemoteSelectionStatus
};
//# sourceMappingURL=chunk-FR6CVXAL.ts.map