#!/usr/bin/env bash
set -euo pipefail

if [ -z "${BASE_URL:-}" ]; then
  if curl --silent --fail http://127.0.0.1:8085/api/health >/dev/null 2>&1; then
    BASE_URL="http://127.0.0.1:8085"
  elif curl --silent --fail http://host.containers.internal:8085/api/health >/dev/null 2>&1; then
    BASE_URL="http://host.containers.internal:8085"
  else
    echo "ERROR: could not determine BASE_URL. Tried 127.0.0.1 and host.containers.internal." >&2
    exit 1
  fi
fi

SESSION_ID="selected-files-test-$(date +%s)-$$"
TMP_DIR="$(mktemp -d)"
trap 'rm -rf "$TMP_DIR"' EXIT

echo "== Feature test 1: add + list selected files =="
curl --fail --silent --show-error \
  -X DELETE "${BASE_URL}/api/session/selected-files?session_id=${SESSION_ID}" \
  -o "${TMP_DIR}/clear_before.json"

cat > "${TMP_DIR}/add_payload.json" <<'JSON'
{
  "items": [
    {
      "path": "/Volumes/8TB/Shared_Folders/TV_Shows/Elsbeth/episode1.mkv",
      "name": "episode1.mkv"
    },
    {
      "path": "/Volumes/8TB/Shared_Folders/TV_Shows/Elsbeth/episode2.mkv",
      "name": "episode2.mkv"
    }
  ]
}
JSON

curl --fail --silent --show-error \
  -X POST "${BASE_URL}/api/session/selected-files?session_id=${SESSION_ID}" \
  -H "Content-Type: application/json" \
  --data @"${TMP_DIR}/add_payload.json" \
  -o "${TMP_DIR}/add_response.json"

cat "${TMP_DIR}/add_response.json"

python3 - "${TMP_DIR}/add_response.json" <<'PY'
import json
import sys
from pathlib import Path

data = json.loads(Path(sys.argv[1]).read_text(encoding="utf-8"))
assert isinstance(data, dict), "response must be an object"
assert isinstance(data.get("items"), list), "items must be a list"
assert len(data["items"]) == 2, "expected 2 selected files"
assert data["items"][0]["file"]["name"] == "episode1.mkv", "first file mismatch"
assert data["items"][1]["file"]["name"] == "episode2.mkv", "second file mismatch"
print("add/list validation passed")
PY

echo
echo "== Feature test 2: reorder selected files =="
cat > "${TMP_DIR}/reorder_payload.json" <<'JSON'
{
  "from_index": 1,
  "to_index": 0
}
JSON

curl --fail --silent --show-error \
  -X POST "${BASE_URL}/api/session/selected-files/reorder?session_id=${SESSION_ID}" \
  -H "Content-Type: application/json" \
  --data @"${TMP_DIR}/reorder_payload.json" \
  -o "${TMP_DIR}/reorder_response.json"

cat "${TMP_DIR}/reorder_response.json"

python3 - "${TMP_DIR}/reorder_response.json" <<'PY'
import json
import sys
from pathlib import Path

data = json.loads(Path(sys.argv[1]).read_text(encoding="utf-8"))
items = data.get("items")
assert isinstance(items, list), "items must be a list"
assert len(items) == 2, "expected 2 selected files"
assert items[0]["file"]["name"] == "episode2.mkv", "reorder did not move expected file"
assert items[1]["file"]["name"] == "episode1.mkv", "reorder did not preserve second file"
print("reorder validation passed")
PY

echo
echo "== Feature test 3: remove + clear selected files =="
python3 - "${TMP_DIR}/reorder_response.json" > "${TMP_DIR}/selection_id.txt" <<'PY'
import json
import sys
from pathlib import Path

data = json.loads(Path(sys.argv[1]).read_text(encoding="utf-8"))
print(data["items"][0]["selection_id"])
PY

SELECTION_ID="$(cat "${TMP_DIR}/selection_id.txt")"

curl --fail --silent --show-error \
  -X DELETE "${BASE_URL}/api/session/selected-files/${SELECTION_ID}?session_id=${SESSION_ID}" \
  -o "${TMP_DIR}/remove_response.json"

cat "${TMP_DIR}/remove_response.json"

python3 - "${TMP_DIR}/remove_response.json" <<'PY'
import json
import sys
from pathlib import Path

data = json.loads(Path(sys.argv[1]).read_text(encoding="utf-8"))
items = data.get("items")
assert isinstance(items, list), "items must be a list"
assert len(items) == 1, "expected 1 selected file after remove"
print("remove validation passed")
PY

curl --fail --silent --show-error \
  -X DELETE "${BASE_URL}/api/session/selected-files?session_id=${SESSION_ID}" \
  -o "${TMP_DIR}/clear_response.json"

cat "${TMP_DIR}/clear_response.json"

python3 - "${TMP_DIR}/clear_response.json" <<'PY'
import json
import sys
from pathlib import Path

data = json.loads(Path(sys.argv[1]).read_text(encoding="utf-8"))
items = data.get("items")
assert isinstance(items, list), "items must be a list"
assert len(items) == 0, "expected empty list after clear"
print("clear validation passed")
PY

echo
echo "All selected files feature tests passed."