#!/usr/bin/env bash
#
# bilibili-stat adapter wrapper
#
# Called by /cheat-retro when state.data_collection=adapter and platform=bilibili.
#
# Usage:
#   bash run.sh <bvid_or_url> <video_folder> [<script_path>]
#
# Example:
#   bash run.sh BV1cUoUY9Ecr ~/my-channel/videos/2026-05-04_BV1cUoUY9Ecr_AI接入MC
#
# B站视频数据(view)与评论(reply)都是公开接口——无需登录、无需 wbi 签名、无需浏览器。
# 纯 httpx，因此这个 adapter 没有 `crawler.py login` 步骤，clone 下来配好依赖即可用。
#
# Output: writes report.md INTO the video_folder.
# Exit codes:
#   0 = success (report.md written)
#   2 = adapter dependency missing (httpx not installed)
#   3 = other failure (network, parse error, bad bvid, etc.)

set -uo pipefail

BVID="${1:-}"
VIDEO_FOLDER="${2:-}"
SCRIPT_PATH="${3:-}"

if [[ -z "$BVID" || -z "$VIDEO_FOLDER" ]]; then
  echo "Usage: bash run.sh <bvid_or_url> <video_folder> [<script_path>]" >&2
  exit 3
fi

# Resolve adapter source dir (where this script lives)
ADAPTER_DIR="$( cd -- "$( dirname -- "${BASH_SOURCE[0]}" )" &> /dev/null && pwd )"

# Find Python — prefer venv in user's project root if exists
PYTHON=""
# Walk up from VIDEO_FOLDER to find project root (.cheat-state.json)
PROJECT_ROOT="$( realpath "$VIDEO_FOLDER" )"
while [[ "$PROJECT_ROOT" != "/" && ! -f "$PROJECT_ROOT/.cheat-state.json" ]]; do
  PROJECT_ROOT="$( dirname "$PROJECT_ROOT" )"
done
if [[ ! -f "$PROJECT_ROOT/.cheat-state.json" ]]; then
  echo "❌ Cannot find project root (.cheat-state.json) from $VIDEO_FOLDER" >&2
  exit 3
fi
if [[ -x "$PROJECT_ROOT/.venv/bin/python" ]]; then
  PYTHON="$PROJECT_ROOT/.venv/bin/python"
elif command -v python3 >/dev/null 2>&1; then
  PYTHON="python3"
elif command -v python >/dev/null 2>&1; then
  PYTHON="python"
else
  echo "❌ python not found — install Python 3.10+ first" >&2
  exit 2
fi

# Verify httpx is installed
if ! "$PYTHON" -c "import httpx" 2>/dev/null; then
  cat >&2 <<EOF
❌ httpx not installed.

Install:
  pip install -r "$ADAPTER_DIR/requirements.txt"

Then re-run /cheat-retro.
EOF
  exit 2
fi

# Make sure video_folder exists
mkdir -p "$VIDEO_FOLDER"

# Resolve script path (optional)
SCRIPT_ARG=""
if [[ -n "$SCRIPT_PATH" && -f "$SCRIPT_PATH" ]]; then
  SCRIPT_ARG="$SCRIPT_PATH"
fi

# Run from PROJECT_ROOT so outputs go to expected paths; override videos dir to user's
cd "$PROJECT_ROOT"
export CHEAT_PROJECT_ROOT="$PROJECT_ROOT"
export CHEAT_VIDEOS_DIR="$( dirname "$VIDEO_FOLDER" )"  # = user's videos/

echo "[bilibili-stat] fetching $BVID into $VIDEO_FOLDER"
if [[ -n "$SCRIPT_ARG" ]]; then
  "$PYTHON" "$ADAPTER_DIR/review.py" video "$BVID" "$SCRIPT_ARG"
else
  "$PYTHON" "$ADAPTER_DIR/review.py" video "$BVID"
fi

# review.py writes to CHEAT_VIDEOS_DIR/<auto-named-folder>/report.md (named by title).
# Move it into our canonical video_folder if names differ.
LATEST_REPORT=$(find "$( dirname "$VIDEO_FOLDER" )" -name "report.md" -newer "$VIDEO_FOLDER" -type f 2>/dev/null | head -1)
if [[ -n "$LATEST_REPORT" && "$( dirname "$LATEST_REPORT" )" != "$VIDEO_FOLDER" ]]; then
  cp "$LATEST_REPORT" "$VIDEO_FOLDER/report.md"
  AUTO_DIR=$( dirname "$LATEST_REPORT" )
  if [[ -f "$AUTO_DIR/script.txt" ]]; then
    cp "$AUTO_DIR/script.txt" "$VIDEO_FOLDER/script.txt"
  fi
  echo "[bilibili-stat] moved auto-named output to $VIDEO_FOLDER/"
fi

if [[ ! -f "$VIDEO_FOLDER/report.md" ]]; then
  echo "❌ report.md not produced — see review.py output above for details" >&2
  exit 3
fi

echo "✅ report.md written to $VIDEO_FOLDER/report.md"
exit 0