#!/usr/bin/env bash
# Deploy althing on this box. FOUR surfaces, not three — the fourth is the one
# that had no step and drifted for five days without anyone noticing.
#
#   scripts/deploy-althing.sh            deploy
#   scripts/deploy-althing.sh --check    report drift, change nothing
#
# ─────────────────────────────────────────────────────────────────────────────
# WHY FOUR
#
#   1. uv tool install --force .   the 7 binaries (postbox, althing-listen,
#                                  althing-route, althing-po-herald, ...)
#   2. herald restart              guards live in the herald; nothing new takes
#                                  effect until it restarts
#   3. scripts/sync_skill.sh       the machine-global participant skill
#   4. PLUGIN                      repo plugin/ -> marketplace dir -> CC cache
#
# Surface 4 is two hops and NEITHER was automated. The marketplace directory
# was a frozen copy from 2026-08-28 carrying plugin 0.0.1 with ONLY the
# UserPromptSubmit hook — no SessionStart, no SessionEnd, no pane-route.sh.
# Consequence: "CC seats re-declare their pane route automatically at next
# SessionStart" was never true on this box, which is why every seat had to be
# hand-declared with a pid someone measured by hand.
#
# ⚠ `uv tool install .` WITHOUT --force IS A SILENT NO-OP. uv matches the
# source SPEC, not its contents: on a box that already installed from this
# path it prints "already installed" and exits 0 having done nothing.
#
# ⚠ The plugin cache update needs a Claude Code RESTART to take effect. The
# hooks are read at session start; a running session keeps the old ones.
# ─────────────────────────────────────────────────────────────────────────────
set -euo pipefail

REPO="${ALTHING_REPO:-$HOME/development/althing}"
MARKET="${ALTHING_MARKETPLACE_DIR:-$HOME/.local/share/althing-plugin}"
CHECK=0
[[ "${1:-}" == "--check" ]] && CHECK=1

say() { printf '%s\n' "$*"; }
step() { printf '\n── %s\n' "$*"; }

[[ -d "$REPO/.git" ]] || { say "✗ no althing checkout at $REPO"; exit 2; }

repo_plugin_version() {
    python3 -c "import json;print(json.load(open('$REPO/plugin/.claude-plugin/plugin.json'))['version'])"
}
market_plugin_version() {
    python3 -c "import json;print(json.load(open('$MARKET/.claude-plugin/plugin.json'))['version'])" 2>/dev/null || echo "absent"
}
cache_versions() {
    ls -1 "$HOME/.claude/plugins/cache/althing/althing/" 2>/dev/null | tr '\n' ' ' || echo "absent"
}

step "state"
say "  repo            $(git -C "$REPO" describe --tags --always) $(git -C "$REPO" diff --quiet && echo clean || echo DIRTY)"
say "  installed tool  $(uv tool list 2>/dev/null | awk '/^althing-core/{print $2}')"
say "  repo plugin     $(repo_plugin_version)"
say "  marketplace     $(market_plugin_version)"
say "  CC cache        $(cache_versions)"

if (( CHECK )); then
    say ""
    say "--check: nothing changed."
    exit 0
fi

step "1/4  uv tool install --force  (NEVER without --force: silent no-op)"
( cd "$REPO" && uv tool install --force . 2>&1 | tail -2 )

step "2/4  restart the herald"
systemctl --user restart althing-po-herald
sleep 2
say "  herald: $(systemctl --user is-active althing-po-herald)"

step "3/4  sync the machine-global skill"
"$REPO/scripts/sync_skill.sh" >/dev/null
"$REPO/scripts/sync_skill.sh" --check | sed 's/^/  /'

step "4/4  plugin — repo -> marketplace -> Claude Code cache"
if [[ -d "$MARKET" ]]; then
    cp -a "$MARKET" "$MARKET.bak-$(date -u +%Y%m%dT%H%M%SZ)"
    say "  backed up the marketplace dir"
fi
mkdir -p "$MARKET/.claude-plugin"
# marketplace.json lives ONLY in the deployed tree (the repo keeps its own at
# .claude-plugin/marketplace.json pointing at ./plugin). Preserve and re-stamp.
tmp=$(mktemp)
[[ -f "$MARKET/.claude-plugin/marketplace.json" ]] && cp -a "$MARKET/.claude-plugin/marketplace.json" "$tmp"
rsync -a --delete --exclude marketplace.json "$REPO/plugin/" "$MARKET/"
[[ -s "$tmp" ]] && cp -a "$tmp" "$MARKET/.claude-plugin/marketplace.json"
rm -f "$tmp"
python3 - "$REPO" "$MARKET" <<'PY'
import json, pathlib, sys
repo, market = sys.argv[1], sys.argv[2]
src = json.loads(pathlib.Path(f"{repo}/plugin/.claude-plugin/plugin.json").read_text())
p = pathlib.Path(f"{market}/.claude-plugin/marketplace.json")
d = json.loads(p.read_text())
d["plugins"][0]["version"] = src["version"]
d["plugins"][0]["description"] = src["description"]
p.write_text(json.dumps(d, indent=2) + "\n")
print(f"  marketplace.json stamped {src['version']}")
PY
say "  updating the Claude Code plugin cache ..."
# `claude plugin update` is the SUPPORTED path. Do NOT hand-edit
# ~/.claude/plugins/installed_plugins.json or fabricate a cache directory —
# that is Claude Code's own bookkeeping and a subtle mistake there breaks the
# plugin in a way that looks like an upstream bug.
claude plugin update althing 2>&1 | sed 's/^/  /' || say "  (update reported nothing to do)"

step "verify"
say "  installed tool  $(uv tool list 2>/dev/null | awk '/^althing-core/{print $2}')"
say "  marketplace     $(market_plugin_version)"
say "  CC cache        $(cache_versions)"
say "  herald          $(systemctl --user is-active althing-po-herald)"
say ""
say "⚠ RESTART Claude Code to load the new plugin hooks. A running session keeps the old ones."