#!/bin/bash
# Tracks API query examples.
#
# Two endpoints are available:
#
#   GET /reslevis/getTracks/{uuid}
#     Returns historical track records for a single tracker.
#     Query params:
#       limit  - max records to return (default: 10)
#       from   - start of time window, RFC3339 (default: 24 h ago)
#       to     - end of time window,   RFC3339 (default: now)
#
#   GET /reslevis/getTracks
#     Returns the single latest track record for every known tracker.
#     Useful for a "current positions" overview.
#     Query params:
#       limit  - max trackers to return (default: 100)
#       offset - number of trackers to skip, for paging (default: 0)
#
# Usage:
#   ./api/tracks.sh [TRACKER_UUID]
#   BASE_URL=http://host:port ./api/tracks.sh [TRACKER_UUID]
#
# Get tracker UUIDs from: GET /reslevis/getTrackers
set -e
SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
. "${SCRIPT_DIR}/../_common.sh"

TRACKER_UUID="${1:-1a6c6f1e-9a3d-4a66-9f0b-6d5f0e1c1a01}"

echo "==================================="
echo "Single-tracker history: GET /reslevis/getTracks/{uuid}"
echo "==================================="
echo ""

# Default call — returns last 10 records from the past 24 hours.
echo "1. Basic query (default: last 10 tracks from the last 24 hours):"
curl -s -X GET "${BASE_URL}/reslevis/getTracks/${TRACKER_UUID}" | jq '.'
echo -e "\n"

# Raise the limit to retrieve more records in a single call.
echo "2. Get last 50 tracks (raise limit):"
curl -s -X GET "${BASE_URL}/reslevis/getTracks/${TRACKER_UUID}?limit=50" | jq '.'
echo -e "\n"

# Explicit time window — both from and to accept RFC3339 timestamps.
# The date command falls back gracefully between GNU/Linux (-d) and macOS (-v).
TO_DATE=$(date -u +%Y-%m-%dT%H:%M:%SZ)
echo "date ${TO_DATE}"
FROM_DATE=$(date -u -d '7 days ago' +%Y-%m-%dT%H:%M:%SZ 2>/dev/null \
  || date -u -v-7d +%Y-%m-%dT%H:%M:%SZ 2>/dev/null \
  || echo "2020-01-01T00:00:00Z")
echo "date ${FROM_DATE}"

echo "3. Get up to 20 tracks from the last 7 days (explicit time window):"
echo "   from=${FROM_DATE}  to=${TO_DATE}"
curl -s -X GET "${BASE_URL}/reslevis/getTracks/${TRACKER_UUID}?from=${FROM_DATE}&to=${TO_DATE}&limit=20" | jq '.'
echo -e "\n"

echo "==================================="
echo "All-trackers latest positions: GET /reslevis/getTracks"
echo "==================================="
echo ""

# No parameters — returns the most recent record for each tracker, up to 100.
echo "4. All latest positions (default limit=100, offset=0):"
curl -s -X GET "${BASE_URL}/reslevis/getTracks" | jq '.'
echo -e "\n"

# Reduce the page size to 5 — useful when there are many trackers.
echo "5. First page — limit to 5 trackers:"
curl -s -X GET "${BASE_URL}/reslevis/getTracks?limit=5&offset=0" | jq '.'
echo -e "\n"

# Move to the second page by setting offset=5.
echo "6. Second page — next 5 trackers (offset=5):"
curl -s -X GET "${BASE_URL}/reslevis/getTracks?limit=5&offset=5" | jq '.'
echo -e "\n"

echo "==================================="
echo "Done."
echo "==================================="