#!/usr/bin/env bash
# Builds chess-episode22/ for Episode 22 ("Build Something Weird With
# Muse") -- the season finale. Uses `muse-dev`, not plain `muse`: the
# chess domain plugin was built live for this episode and committed to
# muse's dev branch, but has not gone through a published release yet
# (see docs/agent-guide.md's muse-vs-muse-dev section). Re-run to
# regenerate; never hand-edit the repo directory directly.
set -euo pipefail

HERE="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
REPO="$HERE/chess-episode22"

rm -rf "$REPO"
mkdir -p "$REPO"
cd "$REPO"

echo "=== Part 1: a brand new domain, zero special-casing ==="
muse-dev init --domain chess --json | python3 -m json.tool

printf 'e4\ne5\n' > game.moves
muse-dev status --json | python3 -c "import json,sys; print('added:', json.load(sys.stdin)['added'])"
muse-dev commit -m "1. e4 e5 -- the open game" \
  --agent-id claude-code --model-id claude-sonnet-5 --sign

echo
echo "=== Part 2: two real variations, diverging from the same position ==="
muse-dev checkout -b variation/italian --intent "explore 3. Bc4, the Italian Game" --resumable
printf 'e4\ne5\nBc4\n' > game.moves
muse-dev commit -m "3. Bc4 -- the Italian Game" \
  --agent-id claude-code --model-id claude-sonnet-5 --sign

muse-dev switch main
muse-dev checkout -b variation/spanish --intent "explore 3. Nf3 heading toward the Ruy Lopez" --resumable
printf 'e4\ne5\nNf3\n' > game.moves
muse-dev commit -m "3. Nf3 -- heading toward the Ruy Lopez" \
  --agent-id claude-code --model-id claude-sonnet-5 --sign

echo
echo "=== Part 3: the real structured delta -- position-addressed moves ==="
muse-dev read variation/italian --json --manifest | python3 -c "
import json, sys
d = json.load(sys.stdin)
print(json.dumps(d['structured_delta'], indent=2))
"

echo
echo "=== Part 4: fast-forward merge (spanish extends main cleanly) ==="
muse-dev switch main
muse-dev merge variation/spanish --json | python3 -m json.tool | head -12

echo
echo "=== Part 5: the real merge conflict -- a genuine 'variation' ==="
muse-dev merge variation/italian --json | python3 -m json.tool || true
echo "--- working tree conflict markers ---"
cat game.moves

echo
echo "=== Part 6: not every conflict needs forcing -- both lines live on ==="
muse-dev merge --abort
muse-dev branch --json | python3 -c "
import json, sys
for b in json.load(sys.stdin):
    print(b['name'], '--', b.get('intent') or '(no intent)')
"

echo
echo "=== Part 7: chess, registered exactly like every other domain ==="
muse-dev domains --json | python3 -c "
import json, sys
d = json.load(sys.stdin)
print([x['domain'] for x in d['domains']])
"

echo
echo "Demo built at $REPO"