#!/usr/bin/env bash
# Drives real muse mist commands for Episode 20 ("Mist"). Requires the
# local MuseHub dev stack running. Re-run to regenerate; each run creates
# fresh Mists (content-addressed IDs derived from a timestamp-salted file).
set -euo pipefail

HUB="https://localhost:1337"
DIR="$(mktemp -d)"
cd "$DIR"

echo "=== Part 1: create, sign, and push a real Mist (fast path) ==="
cat > validate_assignee.py <<EOF
def validate_assignee(handle: str, collaborators: set[str]) -> bool:
    """Return True if handle is a valid assignee for this repo."""
    return handle in collaborators

# episode-20 salt: $(date +%s)
EOF
CREATE_JSON=$(muse mist create validate_assignee.py --title "Validate assignee helper" \
  --description "A tiny reusable snippet, shared as a Mist." \
  --sign --push --hub "$HUB" --json)
echo "$CREATE_JSON" | python3 -m json.tool
MIST_ID=$(echo "$CREATE_JSON" | python3 -c "import json,sys; print(json.load(sys.stdin)['mist_id'])")

echo
echo "=== Part 2: read it back -- real symbol anchoring, no VCS lineage ==="
muse mist read "gabriel/$MIST_ID" --hub "$HUB" --json | python3 -m json.tool

echo
echo "=== Part 3: the honest part -- the documented manual push workflow crashes ==="
mkdir -p vcs-repo && cd vcs-repo
muse init --domain mist --json > /dev/null
echo "A four-note motif, described in prose: C, E, G, C (up an octave)." > motif.txt
muse commit -m "Add motif description" --agent-id claude-code --model-id claude-sonnet-5 --sign --json > /dev/null
echo "--- muse mist push (exactly as --help documents) ---"
muse mist push --remote local --branch main 2>&1 | tail -8 || true
cd ..

echo
echo "=== Part 4: fork -- real, works correctly ==="
FORK_JSON=$(muse mist fork "gabriel/$MIST_ID" --hub "$HUB" --json)
echo "$FORK_JSON" | python3 -m json.tool
echo "--- forkCount on the original, confirmed real ---"
muse mist read "gabriel/$MIST_ID" --hub "$HUB" --json | python3 -c "import json,sys; print('forkCount:', json.load(sys.stdin)['forkCount'])"

echo
echo "=== Part 5: the second honest part -- muse mist forks silently returns {} ==="
echo "--- via the CLI ---"
muse mist forks "gabriel/$MIST_ID" --hub "$HUB" --json
echo "--- the same query, raw curl + hand-signed header ---"
HEADER=$(muse sign header --method GET --path "/api/mists/$MIST_ID/forks" --hub "$HUB" --json | python3 -c "import json,sys; print(json.load(sys.stdin)['header_value'])")
curl -sk "$HUB/api/mists/$MIST_ID/forks" -H "Authorization: $HEADER"

echo
echo "=== Part 6: embed and raw -- both real, both work ==="
muse mist embed "gabriel/$MIST_ID" --hub "$HUB" --json | python3 -m json.tool
echo "--- raw bytes ---"
muse mist raw "gabriel/$MIST_ID" --hub "$HUB"

echo
echo "Demo complete. (scratch dir: $DIR)"