memstead-cli 0.6.0

//! Clap derive for the `memstead` binary, lifted out of `main.rs` so
//! the xtask doc generator can call `Cli::command()` against the same
//! tree the binary exposes — no duplicated declarations, no drift.
//!
//! One crate, two build configs: the default (`mem-repo`) build
//! exposes the full command set including the multi-mem / mem-repo
//! lifecycle subcommands; `--no-default-features` drops those, leaving
//! the engine-agnostic surface.

use clap::{Parser, Subcommand};

use crate::commands;

/// Top-level `--help` epilog describing the exit-code posture. The
/// taxonomy is intentionally coarse — success vs failure — because
/// agents read JSON, not exit codes, and shell scripts can lift the
/// granular `code` from `--json | jq .code`.
pub const EXIT_CODES_HELP: &str = "\
Exit codes:
  0  success
  1  generic failure (catch-all for non-classified errors)
  2  usage error (clap argument-parse failure — unknown flag, bad value)
  3  not found (entity / mem / resource missing)
  4  hash mismatch (optimistic-locking failure on a mutation)
  5  validation / schema / policy refusal

  For programmatic branching, prefer `--json` over the exit code:
    memstead <subcommand> ... --json | jq -r .code
  The JSON envelope's `code` field carries the typed token
  (e.g. INVALID_TITLE, HAS_INCOMING_REFS, CROSS_MEM_LINK_NOT_ALLOWED)
  with structured recovery details under `.details`.";

/// Query and mutate Memstead knowledge graphs from the shell.
#[derive(Parser, Debug)]
// `--version` prints the full build version (engine semver plus the
// git build sha for dev builds) so two builds between releases stay
// distinguishable in the field.
#[command(name = "memstead", version = memstead_base::build_info::full_version(), about, long_about = None, after_long_help = EXIT_CODES_HELP)]
pub struct Cli {
    /// Emit JSON instead of markdown. Matches MCP `structured_content` shape.
    #[arg(long, global = true)]
    pub json: bool,

    /// Suppress engine startup logs on stderr.
    #[arg(long, global = true)]
    pub quiet: bool,

    /// Operate on the workspace at PATH instead of walking up from the
    /// current directory (like `git -C`: the process runs as if
    /// invoked from PATH, so relative path arguments resolve against
    /// it). Also settable via the `MEMSTEAD_WORKSPACE` environment
    /// variable; the flag wins when both are present. A PATH that is
    /// not an initialised workspace refuses with
    /// `WORKSPACE_NOT_INITIALISED` naming the path — it never falls
    /// back to the directory walk.
    #[arg(long, global = true, value_name = "PATH")]
    pub workspace: Option<std::path::PathBuf>,

    /// Declare the role this invocation's mutations are performed in
    /// (agent-trust plan 13): `author` | `checker` | `verifier`.
    /// Recorded immutably alongside each mutation (commit trailer /
    /// ledger). Omit to record mutations as unspecified — legal
    /// forever, never refused.
    #[arg(long = "role", global = true)]
    pub role: Option<String>,

    #[command(subcommand)]
    pub command: Command,
}

#[derive(Subcommand, Debug)]
pub enum Command {
    /// Node / edge counts, schema distribution, and per-binding projection state.
    Status,

    /// Read one entity as markdown.
    Entity(commands::entity::Args),

    /// List typed edges for an entity.
    Relations(commands::relations::Args),

    /// Find entities by text or graph proximity.
    Search(commands::search::Args),

    /// Filter entities by metadata (no text match — use `search` for that).
    List(commands::list::Args),

    /// Read an entity's community cluster.
    Context(commands::context::Args),

    /// All clusters with summaries and member lists. The full build
    /// renders the same rich content the MCP `memstead_overview` tool
    /// emits — both surfaces share the engine composer in `memstead-engine`.
    Overview(commands::overview::Args),

    /// Describe one type, or list all types when no name given.
    Type(commands::type_cmd::Args),

    /// Health summary (orphans, stubs, stale entities, missing fields).
    Health(commands::health::Args),

    /// Render the due-brief: open entities whose schema-declared due
    /// date falls inside the window (default 90d), overdue first.
    Due(commands::due::Args),

    /// Export the write mem as markdown (in place) or as a portable `.mem` archive.
    Export(commands::export::Args),

    /// Initialise a filesystem mem in the current (or named) folder.
    /// Strict: errors out when the target is not empty.
    Init(commands::init::InitArgs),

    /// One-command cold start: workspace + default-schema mem + seed
    /// entity + MCP wiring for your agent(s), in the current (or named)
    /// folder. Tolerates dotfiles and README-grade files; derives the
    /// mem name from the folder. For the strict, script-safe variant
    /// use `memstead init`.
    Quickstart(commands::quickstart::Args),

    /// Install a sealed `.mem` mem — either a local file, or `<scope>/<name>`
    /// from the memstead.io registry. Registers it as a workspace-level
    /// read-only mount; `memstead uninstall` is the symmetric removal.
    /// MEM-REPO WORKSPACES ONLY — refuses with
    /// `UNSUPPORTED_WORKSPACE_SHAPE` on the filesystem-mem workspace
    /// `memstead quickstart` produces; bootstrap with
    /// `memstead mem-repo init` instead when you intend to install mems.
    #[cfg(feature = "mem-repo")]
    Install(commands::install::Args),

    /// Remove an installed read-mem's workspace-level mount. The global
    /// cache copy survives by default; re-`install` re-registers it.
    /// MEM-REPO WORKSPACES ONLY (see `install`).
    #[cfg(feature = "mem-repo")]
    Uninstall(commands::uninstall::Args),

    /// Verify every anchor in a mem against its declared source — the
    /// standalone drift statement, no binding required. Read-only.
    #[command(name = "verify-anchors")]
    VerifyAnchors(commands::verify_anchors::Args),

    /// Link a filesystem mem to a registry-published dependency.
    /// `memstead link <scope/name>` fetches the archive into the
    /// workspace and records the dependency in the workspace config.
    Link(commands::link::LinkArgs),

    /// Publish a `.mem` archive to the registry. Triggers GitHub
    /// Device Flow on first use; subsequent runs are silent.
    Publish(commands::publish::Args),

    /// Unpublish (hard-delete) `<scope>/<name>` from the registry.
    /// Permitted to the original uploader and to admins. The same
    /// `<scope>/<name>` becomes immediately re-publishable.
    Unpublish(commands::unpublish::Args),

    /// Domain-authority publishing: generate the signing key for a domain you
    /// control and print the `.well-known` manifest to host. `publish --scope
    /// <domain>:<handle>` then signs with that key — no GitHub account needed.
    Domain {
        #[command(subcommand)]
        action: commands::domain::DomainAction,
    },

    /// Admin-only registry moderation: take a mem down or deny-list
    /// bytes. Gated server-side by the `MEMSTEAD_ADMINS` allowlist; every
    /// action is recorded in the registry's append-only audit log.
    Admin {
        #[command(subcommand)]
        action: commands::admin::AdminAction,
    },

    /// Authenticate with a registry via GitHub Device Flow. Optional —
    /// `publish` auto-triggers the same flow on first use.
    Login(commands::login::Args),

    /// Remove stored credentials for a registry.
    Logout(commands::logout::Args),

    /// Create a new entity. Provide `--title`, `--type`, and the required
    /// section fields, or pass `--from <file.json>` with the full payload.
    Create(commands::create::Args),

    /// Modify an existing entity. `--expected-hash` is required unless
    /// `--auto-hash` (refetch before write) or `--force` (skip check) is given.
    Update(commands::update::Args),

    /// Add or remove a typed relationship between two entities.
    Relate(commands::relate::Args),

    /// Delete an entity. Use `--dry-run` to preview impact first.
    /// Delete is hashless by design (no post-state to race on); race
    /// protection comes from `HAS_INCOMING_REFS` — and
    /// `RESIDUAL_STUB_FOR_READONLY_REFERRERS` for read-only-referrer cases.
    Delete(commands::delete::Args),

    /// Rename an entity (changes ID, file path, and every incoming wiki-link).
    Rename(commands::rename::Args),

    /// Update many entities in one atomic call. Input is a JSON file
    /// with a top-level `updates: [...]` array (one entry per entity,
    /// each with its own hash mode and mutation fields). All-or-nothing:
    /// if any entry fails (validation, hash mismatch, missing entity)
    /// the whole batch is refused and NOTHING is committed — fix the
    /// named entry and resubmit. On success the batch lands as one
    /// commit. Mirrors `memstead update` per entry.
    /// MEM-REPO WORKSPACES ONLY — refuses with
    /// `UNSUPPORTED_WORKSPACE_SHAPE` on the filesystem-mem workspace
    /// `memstead quickstart` produces; fall back to one `memstead
    /// update` per entity there.
    #[cfg(feature = "mem-repo")]
    #[command(name = "batch-update")]
    BatchUpdate(commands::batch_update::Args),

    /// Create many entities in one atomic call. Input is a JSON file
    /// with a top-level `creates: [...]` array — each entry the same
    /// shape as `create --from`, with its own provenance `note`.
    /// Intra-batch references resolve as real targets (cycles included
    /// where the schema permits), so a mutually-referencing set lands
    /// in a single pass with no stubs. All-or-nothing: any invalid
    /// entry refuses the whole batch and names EVERY failing entry.
    /// One commit per touched mem.
    /// MEM-REPO WORKSPACES ONLY — refuses with
    /// `UNSUPPORTED_WORKSPACE_SHAPE` on the filesystem-mem workspace
    /// `memstead quickstart` produces; fall back to one `memstead
    /// create` per entity there (losing atomicity and intra-batch
    /// reference resolution).
    #[cfg(feature = "mem-repo")]
    #[command(name = "batch-create")]
    BatchCreate(commands::batch_create::Args),

    /// Apply many edge changes in one atomic call. Input is a JSON
    /// file with a top-level `relates: [...]` array mixing additions
    /// and removals, applied in order — each entry mirrors `relate`
    /// (`from` / `type` / `to`, optional `remove`, `description`,
    /// per-entry `note`). All-or-nothing: any invalid entry refuses
    /// the whole batch and names EVERY failing entry. One commit per
    /// touched mem.
    /// MEM-REPO WORKSPACES ONLY — refuses with
    /// `UNSUPPORTED_WORKSPACE_SHAPE` on the filesystem-mem workspace
    /// `memstead quickstart` produces; fall back to one `memstead
    /// relate` per edge there.
    #[cfg(feature = "mem-repo")]
    #[command(name = "batch-relate")]
    BatchRelate(commands::batch_relate::Args),

    /// Apply parse-time-drift recovery across writable mems. Walks
    /// `PARSED_RELATION_INVALID` warnings, re-renders affected
    /// source entities to drop the stale rows, and reports per-entry
    /// outcomes. Read-only-origin drops surface as skipped.
    /// MEM-REPO WORKSPACES ONLY (see `install`).
    #[cfg(feature = "mem-repo")]
    Recover(commands::recover::Args),

    /// Read provenance anchors (E3a): `memstead anchors <id>` lists an
    /// entity's anchors + composition; `memstead anchors --artifact <path>`
    /// reverse-looks-up every entity whose anchor references that path
    /// (the query the check-realization hook consumes).
    Anchors(commands::anchors::Args),

    /// Diff a mem's HEAD against a commit SHA. Pass `--since` = a
    /// prior `commit_sha` from a mutation, or the canonical empty-tree
    /// hash `4b825dc642cb6eb9a060e54bf8d69288fbee4904` for a first sync.
    Changes(commands::changes::Args),

    /// Record a check: "entity E checked, verdict ok | failed, via
    /// method M" — an engine-recorded act carrying the session's
    /// `--role`, never a mutation (entity markdown, hash, and mem
    /// commits untouched). Derived check state serves via
    /// `memstead entity <id> --provenance`.
    Check(commands::check::Args),

    /// Read and move the per-mem review mark — the engine's one
    /// pointer per mem to the last human-approved state. `list` shows
    /// every mem's mark and head; `set`/`clear` move it (explicit
    /// target only); `diff` reports the unreviewed delta. Marks never
    /// gate writes.
    #[command(name = "review-mark")]
    ReviewMark(commands::review_mark::Args),

    /// Reload one writable mem's slice of the in-memory store from
    /// its on-disk branch tip — or every writable mem when
    /// `--mem` is omitted. CLI parity with the MCP `memstead_reload`
    /// tool.
    Reload(commands::reload::Args),

    /// Fetch a mem's branch refs from a git remote into the mem-repo
    /// (no local branch moves — inspect first, then `pull`). Requires a
    /// git-branch-backed mem (`INVALID_INPUT` on folder mounts);
    /// refuses `UNKNOWN_REMOTE` when the remote is not configured.
    #[cfg(feature = "mem-repo")]
    Fetch(commands::transport::FetchArgs),

    /// Fast-forward a mem's branch to its fetched remote counterpart
    /// and reload the in-memory store. Refuses `LOCAL_DIVERGENCE` when
    /// the local branch is not an ancestor of the remote — reconcile
    /// via `branch-reset`, or resolve on another clone and push.
    #[cfg(feature = "mem-repo")]
    Pull(commands::transport::PullArgs),

    /// Push a mem's branch to a git remote. `--force` uses
    /// force-with-lease semantics; without it, non-fast-forward pushes
    /// refuse (`NON_FAST_FORWARD`). Refuses `UNKNOWN_REMOTE` when the
    /// remote is not configured.
    #[cfg(feature = "mem-repo")]
    Push(commands::transport::PushArgs),

    /// Reset a mem's branch pointer to a target ref/SHA. Refuses to
    /// discard commits reachable from any remote ref
    /// (`PUSHED_COMMITS_PROTECTED`).
    #[cfg(feature = "mem-repo")]
    #[command(name = "branch-reset")]
    BranchReset(commands::branch_reset::BranchResetArgs),

    /// Mem lifecycle commands.
    #[cfg(feature = "mem-repo")]
    Mem {
        #[command(subcommand)]
        action: commands::mem::MemAction,
    },

    /// Mem-repo-git lifecycle commands.
    #[cfg(feature = "mem-repo")]
    #[command(name = "mem-repo")]
    MemRepo {
        #[command(subcommand)]
        action: commands::mem_repo::MemRepoAction,
    },

    /// Introspect and configure workspace policy — `dump` reads the
    /// effective config; `allow-create`/`revoke-create`/`allow-delete`/
    /// `revoke-delete`/`grant-cross-link`/`revoke-cross-link`/`set-mutations`
    /// write the mem-lifecycle allowlist, cross-mem link grants, and
    /// mutation policy.
    #[cfg(feature = "mem-repo")]
    Workspace {
        #[command(subcommand)]
        action: commands::workspace::WorkspaceAction,
    },

    /// Author-time schema tooling. `memstead schema validate <path>`
    /// checks a schema package directory against the engine's loader
    /// without touching a workspace.
    Schema(commands::schema::Args),

    /// Pipeline tooling — one versioned v2 binding per pipeline, sources
    /// inline. `memstead projection brief <binding>` renders a binding's
    /// run-brief (the Markdown prompt an agent consumes); `memstead
    /// projection init` scaffolds a fresh v2 record non-interactively;
    /// `memstead projection migrate` converts every prior on-disk generation
    /// (gen-1 root folders, the four-primitive store, the v1 three-file
    /// store) into v2 records in place; `memstead projection advance`
    /// records disposition-gated sync-baseline advances; `memstead projection
    /// enable <build|sync|verify> <binding>` adds a missing operation block.
    Projection(commands::projection::Args),
}

impl Command {
    /// The subcommand's user-facing verb name, as typed on the command
    /// line — the `verb` field the friction ledger records on a typed
    /// refusal. Nested action groups report their top-level noun
    /// (`mem`, `mem-repo`, `workspace`, `domain`, `admin`): per-verb
    /// counts at that granularity already answer the design questions,
    /// and nothing payload-shaped can leak through a static name.
    pub fn verb(&self) -> &'static str {
        match self {
            Command::Status => "status",
            Command::Entity(_) => "entity",
            Command::Relations(_) => "relations",
            Command::Search(_) => "search",
            Command::List(_) => "list",
            Command::Context(_) => "context",
            Command::Overview(_) => "overview",
            Command::Type(_) => "type",
            Command::Health(_) => "health",
            Command::Due(_) => "due",
            Command::Export(_) => "export",
            Command::Init(_) => "init",
            Command::Quickstart(_) => "quickstart",
            #[cfg(feature = "mem-repo")]
            Command::Install(_) => "install",
            #[cfg(feature = "mem-repo")]
            Command::Uninstall(_) => "uninstall",
            Command::VerifyAnchors(_) => "verify-anchors",
            Command::Link(_) => "link",
            Command::Publish(_) => "publish",
            Command::Unpublish(_) => "unpublish",
            Command::Domain { .. } => "domain",
            Command::Admin { .. } => "admin",
            Command::Login(_) => "login",
            Command::Logout(_) => "logout",
            Command::Create(_) => "create",
            Command::Update(_) => "update",
            Command::Relate(_) => "relate",
            Command::Delete(_) => "delete",
            Command::Rename(_) => "rename",
            #[cfg(feature = "mem-repo")]
            Command::BatchUpdate(_) => "batch-update",
            #[cfg(feature = "mem-repo")]
            Command::BatchCreate(_) => "batch-create",
            #[cfg(feature = "mem-repo")]
            Command::BatchRelate(_) => "batch-relate",
            #[cfg(feature = "mem-repo")]
            Command::Recover(_) => "recover",
            Command::Anchors(_) => "anchors",
            Command::Changes(_) => "changes",
            Command::Check(_) => "check",
            Command::ReviewMark(_) => "review-mark",
            Command::Reload(_) => "reload",
            #[cfg(feature = "mem-repo")]
            Command::Fetch(_) => "fetch",
            #[cfg(feature = "mem-repo")]
            Command::Pull(_) => "pull",
            #[cfg(feature = "mem-repo")]
            Command::Push(_) => "push",
            #[cfg(feature = "mem-repo")]
            Command::BranchReset(_) => "branch-reset",
            #[cfg(feature = "mem-repo")]
            Command::Mem { .. } => "mem",
            #[cfg(feature = "mem-repo")]
            Command::MemRepo { .. } => "mem-repo",
            #[cfg(feature = "mem-repo")]
            Command::Workspace { .. } => "workspace",
            Command::Schema(_) => "schema",
            Command::Projection(_) => "projection",
        }
    }
}