#!/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-episodes-test-$(date +%s)-$$"
TMP_DIR="$(mktemp -d)"
trap 'rm -rf "$TMP_DIR"' EXIT

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

cat > "${TMP_DIR}/add_payload.json" <<'JSON'
{
  "items": [
    {
      "id": 9784113,
      "season_number": 1,
      "episode_number": 1,
      "title": "Pilot",
      "aired": "2024-02-29",
      "label": "S01E01 - Pilot - 2024-02-29"
    },
    {
      "id": 10347197,
      "season_number": 1,
      "episode_number": 2,
      "title": "A Classic New York Character",
      "aired": "2024-04-04",
      "label": "S01E02 - A Classic New York Character - 2024-04-04"
    }
  ]
}
JSON

curl --fail --silent --show-error \
  -X POST "${BASE_URL}/api/session/selected-episodes?session_id=${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 episodes"
assert data["items"][0]["episode"]["title"] == "Pilot", "first title mismatch"
assert data["items"][1]["episode"]["title"] == "A Classic New York Character", "second title mismatch"
print("add/list validation passed")
PY

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

curl --fail --silent --show-error \
  -X POST "${BASE_URL}/api/session/selected-episodes/reorder?session_id=${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 episodes"
assert items[0]["episode"]["title"] == "A Classic New York Character", "reorder did not move expected item"
assert items[1]["episode"]["title"] == "Pilot", "reorder did not preserve second item"
print("reorder validation passed")
PY

echo
echo "== Feature test 3: remove + clear selected episodes =="
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 "${BASE_URL}/api/session/selected-episodes/${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 episode after remove"
print("remove validation passed")
PY

curl --fail --silent --show-error \
  -X DELETE "${BASE_URL}/api/session/selected-episodes?session_id=${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 episodes feature tests passed."