#!/usr/bin/env bash
# p2-67 Phase 5 — Real-apricot Claude-vs-AI demo driver, 25 EndTurns.
#
# Spawns player-api-server.sh, sends CP_TURNS act:end_turn requests
# (default 25) followed by shutdown. Streams the FULL JSON-Lines
# response stream verbatim to stdout — caller redirects to transcript.jsonl.
#
# On unexpected termination (game over, panic, protocol_error), the
# server's stdout is preserved up to the abort point. A synthetic
# {"type":"protocol_error", ...} line is appended if the harness exits
# non-zero before consuming the full request stream.
#
# Env:
#   CP_TURNS         (default 25)   — number of EndTurns to issue
#   CP_SEED          (default 42)
#   CP_PLAYERS       (default 3)
#   CP_PLAYER_SLOT   (default 0)
#   CP_MAP_SIZE      (default duel)
#   CP_TIMEOUT_SEC   (default 600) — harness wallclock budget
#
# Exit 0 always — termination details land in the transcript itself.

set -uo pipefail

SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"

: "${CP_TURNS:=25}"
: "${CP_SEED:=42}"
: "${CP_PLAYERS:=3}"
: "${CP_PLAYER_SLOT:=0}"
: "${CP_MAP_SIZE:=duel}"
: "${CP_TIMEOUT_SEC:=600}"

export CP_SEED CP_PLAYERS CP_PLAYER_SLOT CP_MAP_SIZE CP_TIMEOUT_SEC

TMP=$(mktemp -d -t mc-demo25-XXXXXX)
trap "rm -rf '$TMP'" EXIT

# Build the request stream.
{
    for i in $(seq 1 "$CP_TURNS"); do
        printf '{"type":"act","id":%d,"action":{"type":"end_turn"}}\n' "$i"
    done
    printf '{"type":"shutdown","id":999}\n'
} > "$TMP/in.jsonl"

# Drive the harness. timeout is a hard ceiling; CP_TIMEOUT_SEC drives the
# in-process Godot watchdog inside the harness.
HARNESS_RC=0
timeout "$((CP_TIMEOUT_SEC + 60))" "$SCRIPT_DIR/player-api-server.sh" \
    < "$TMP/in.jsonl" > "$TMP/out.jsonl" 2>"$TMP/err.log" \
    || HARNESS_RC=$?

# Emit transcript verbatim.
cat "$TMP/out.jsonl"

# If the harness aborted before issuing a shutdown_ok, append a protocol_error
# synthetic line so downstream tooling can detect the abort. Mirror the mock
# transcript's pattern.
if [[ $HARNESS_RC -ne 0 ]]; then
    LAST_TURN=$(grep -c '"type":"act_response"' "$TMP/out.jsonl" 2>/dev/null || echo 0)
    STDERR_TAIL=$(tail -20 "$TMP/err.log" 2>/dev/null | tr '\n' '|' | sed 's/"/\\"/g')
    printf '{"type":"protocol_error","harness_rc":%d,"last_act_response_count":%d,"stderr_tail":"%s"}\n' \
        "$HARNESS_RC" "$LAST_TURN" "$STDERR_TAIL"
fi

# Always exit clean — termination data is in the transcript.
exit 0