#!/usr/bin/env bash
# host-on-sx live server launcher. Loads the kernel stdlib, the subsystem
# libraries, and the host modules into one sx_server process, then calls
# (host/serve PORT ...) which binds the native http-listen server to the
# Dream-shaped host app. Runs in the FOREGROUND (http-listen blocks), so this
# doubles as a container entrypoint and a local launcher.
#
# Usage:
#   bash lib/host/serve.sh                 # serve on $HOST_PORT (default 8910)
#   HOST_PORT=8920 bash lib/host/serve.sh  # pick a port
#
# The module list is kept identical to lib/host/conformance.sh so what serves is
# exactly what the suites verify.

set -uo pipefail
# Project root: SX_PROJECT_DIR in containers (set to /app by the compose stack),
# else the git toplevel for local runs.
cd "${SX_PROJECT_DIR:-$(git rev-parse --show-toplevel 2>/dev/null || echo .)}"

SX_SERVER="${SX_SERVER:-hosts/ocaml/_build/default/bin/sx_server.exe}"
if [ ! -x "$SX_SERVER" ]; then
  SX_SERVER="/root/rose-ash/hosts/ocaml/_build/default/bin/sx_server.exe"
fi
if [ ! -x "$SX_SERVER" ]; then
  echo "ERROR: sx_server.exe not found." >&2
  exit 1
fi

PORT="${HOST_PORT:-8910}"

# Modules: every load line from conformance.sh's MODULES list, minus the ledger
# (not needed to serve). server.sx supplies host/serve.
MODULES=(
  "spec/stdlib.sx"
  "lib/r7rs.sx"
  "lib/apl/runtime.sx"
  "lib/datalog/tokenizer.sx"
  "lib/datalog/parser.sx"
  "lib/datalog/unify.sx"
  "lib/datalog/db.sx"
  "lib/datalog/builtins.sx"
  "lib/datalog/aggregates.sx"
  "lib/datalog/strata.sx"
  "lib/datalog/eval.sx"
  "lib/datalog/api.sx"
  "lib/datalog/magic.sx"
  "lib/acl/schema.sx"
  "lib/acl/facts.sx"
  "lib/acl/engine.sx"
  "lib/acl/explain.sx"
  "lib/acl/audit.sx"
  "lib/acl/federation.sx"
  "lib/acl/api.sx"
  "lib/relations/schema.sx"
  "lib/relations/engine.sx"
  "lib/relations/api.sx"
  "lib/relations/explain.sx"
  "lib/relations/federation.sx"
  "lib/relations/tree.sx"
  "lib/feed/normalize.sx"
  "lib/feed/stream.sx"
  "lib/feed/api.sx"
  "lib/persist/event.sx"
  "lib/persist/backend.sx"
  "lib/persist/log.sx"
  "lib/persist/kv.sx"
  "lib/persist/api.sx"
  "lib/persist/durable.sx"
  "spec/render.sx"
  "web/adapter-html.sx"
  "lib/dream/types.sx"
  "lib/dream/json.sx"
  "lib/dream/auth.sx"
  "lib/dream/error.sx"
  "lib/dream/form.sx"
  "lib/dream/session.sx"
  "lib/dream/router.sx"
  "lib/host/handler.sx"
  "lib/host/middleware.sx"
  "lib/host/session.sx"
  "lib/host/auth.sx"
  "lib/host/sxtp.sx"
  "lib/host/router.sx"
  "lib/host/static.sx"
  "lib/host/sx/relate-picker.sx"
  "lib/host/sx/kg-cards.sx"
  "lib/host/feed.sx"
  "lib/host/relations.sx"
  "lib/host/compose.sx"
  "lib/host/execute.sx"
  "lib/host/blog.sx"
  "lib/host/server.sx"
)

# Admin login credentials + session signing secret. Override via the container
# env; the in-source defaults are dev-only. The blog write routes are now GUARDED
# (session login or Bearer), so these gate publishing on blog.rose-ash.com.
ADMIN_USER="${SX_ADMIN_USER:-admin}"
ADMIN_PASS="${SX_ADMIN_PASSWORD:-letmein}"
SESSION_SECRET="${SX_SESSION_SECRET:-rose-ash-host-dev-secret-change-me}"

EPOCH=1
{
  for M in "${MODULES[@]}"; do
    echo "(epoch $EPOCH)"; echo "(load \"$M\")"; EPOCH=$((EPOCH+1))
  done
  # 100% serving JIT — NO host exclude. The serving-JIT perform-in-HO-callback
  # miscompile (map/rest/drop wrong args → blank pages, empty picker) is fixed by
  # two composing pieces: sx-vm-extensions 81177d0e resolves a callback's IO
  # inline (instead of unwinding the native HO loop) WHEN a synchronous resolver
  # is installed, and sx_server.ml's http-listen now installs that resolver (it
  # mirrors cek_run_with_io exactly). So the whole request path — host app +
  # Dream + Datalog — runs under JIT with no exclude. Verified: ephemeral durable
  # server, 100% JIT, zero fallbacks, real content, picker lists candidates.
  # Point the blog at the DURABLE file backend (persists under $SX_PERSIST_DIR),
  # then idempotently seed a welcome post (sx_content = SX element markup, the
  # editor's content model). Re-seeding is a no-op if the slug already exists.
  echo "(epoch $EPOCH)"
  echo "(eval \"(host/blog-use-store! (persist/durable-backend))\")"
  EPOCH=$((EPOCH+1))
  # Rebuild the relations graph from the durable edge store. lib/relations holds
  # the graph in memory only, so without this, related/tags/types vanish on every
  # restart even though the posts persist.
  echo "(epoch $EPOCH)"
  echo "(eval \"(host/blog-load-edges!)\")"
  EPOCH=$((EPOCH+1))
  # Sessions on the DURABLE store, LAZILY: only a logged-in session (one that
  # writes a field) persists, so a login survives a restart while anonymous /
  # crawler traffic leaves no rows. host/session-init! bumps the per-boot epoch
  # that keeps sids unique across restarts. Then the signing secret + admin
  # credentials, and grant admin "edit" on "blog" so a logged-in session passes
  # the ACL gate on the write routes.
  echo "(epoch $EPOCH)"
  echo "(eval \"(host/session-use-store! (persist/durable-backend))\")"
  EPOCH=$((EPOCH+1))
  echo "(epoch $EPOCH)"
  echo "(eval \"(host/session-init!)\")"
  EPOCH=$((EPOCH+1))
  echo "(epoch $EPOCH)"
  echo "(eval \"(host/session-set-secret! \\\"$SESSION_SECRET\\\")\")"
  EPOCH=$((EPOCH+1))
  echo "(epoch $EPOCH)"
  echo "(eval \"(host/auth-set-admin! \\\"$ADMIN_USER\\\" \\\"$ADMIN_PASS\\\")\")"
  EPOCH=$((EPOCH+1))
  echo "(epoch $EPOCH)"
  echo "(eval \"(acl/load! (list (acl-grant \\\"$ADMIN_USER\\\" \\\"edit\\\" \\\"blog\\\")))\")"
  EPOCH=$((EPOCH+1))
  # Idempotently seed a welcome post (sx_content = SX element markup, the editor's
  # content model). Re-seeding is a no-op if the slug already exists.
  echo "(epoch $EPOCH)"
  echo "(eval \"(host/blog-seed! \\\"welcome\\\" \\\"Welcome to the SX host\\\" \\\"(article (h1 \\\\\\\"Welcome to the SX host\\\\\\\") (p \\\\\\\"Rendered by lib/host via render-to-html, from the durable SX store.\\\\\\\"))\\\" \\\"published\\\")\")"
  EPOCH=$((EPOCH+1))
  # Seed the root type-posts (type, tag) — types ARE posts. Idempotent.
  echo "(epoch $EPOCH)"
  echo "(eval \"(host/blog-seed-types!)\")"
  EPOCH=$((EPOCH+1))
  # Seed a live demo of the composition fold (plans/composition-objects.md): /compose-demo
  # is one composition object rendered by host/comp-render — renders differently by context.
  echo "(epoch $EPOCH)"
  echo "(eval \"(host/blog-seed-compose-demo!)\")"
  EPOCH=$((EPOCH+1))
  # Load relation metadata (symmetry/labels) from the relation-posts into the
  # in-memory cache, so render paths read it without a (VmSuspending) durable read.
  echo "(epoch $EPOCH)"
  echo "(eval \"(host/blog-load-rel-kinds!)\")"
  EPOCH=$((EPOCH+1))
  # Index the web-stack .sxbc by content hash so /sx/h/{hash} can serve them
  # immutably and the shell can emit the data-sx-manifest (content-addressed
  # client module cache). Done once at boot.
  echo "(epoch $EPOCH)"
  echo "(eval \"(host/static-build-sxh-index!)\")"
  EPOCH=$((EPOCH+1))
  echo "(epoch $EPOCH)"
  # Anonymous reads (feed timeline + relations container reads + blog post detail)
  # plus the GUARDED blog write routes: POST /new (editor form ingest), POST/PUT/
  # DELETE /posts behind host/require-user (session login OR Bearer) + ACL. make-app
  # auto-mounts /login + /logout and wraps everything in the signed-session
  # middleware, so a browser logs in then publishes. The bearer resolver is a stub
  # (no API tokens configured) — browser session is the live auth path for now.
  # blog-routes LAST — its GET /:slug catch-all must not shadow the rest.
  echo "(eval \"(host/serve $PORT (list host/static-routes host/feed-routes host/relations-routes (host/blog-write-routes (fn (tok) nil)) host/blog-routes))\")"
} | exec "$SX_SERVER"
