Graham McIntire
cd79c3df7e
- Added item_name, object_name fields to store names - Added is_item, is_object boolean flags for filtering - Added dao field to store DAO extension data for extra position precision - Automatic detection during packet processing to populate these fields - Added database indexes for efficient queries - Now preserving itemname as item_name and dao data instead of discarding This enables future features like: - Showing/hiding items and objects separately from stations - Querying for specific objects (events, repeaters, etc.) - Using DAO data for high-precision applications 🤖 Generated with [Claude Code](https://claude.ai/code) Co-Authored-By: Claude <noreply@anthropic.com>
664 lines
21 KiB
Elixir
664 lines
21 KiB
Elixir
defmodule Aprsme.PacketConsumer do
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@moduledoc """
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GenStage consumer that batches APRS packets and inserts them into the database
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efficiently to reduce database load.
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"""
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use GenStage
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alias Aprs.Types.ParseError
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alias Aprsme.LogSanitizer
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alias Aprsme.Repo
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require Logger
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def start_link(opts \\ []) do
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# Allow unnamed consumers for pool usage
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name = opts[:name]
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if name do
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GenStage.start_link(__MODULE__, opts, name: name)
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else
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GenStage.start_link(__MODULE__, opts)
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end
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end
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@impl true
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def init(opts) do
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batch_size = opts[:batch_size] || 100
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batch_timeout = opts[:batch_timeout] || 1000
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# Maximum batch size to prevent unbounded memory growth
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max_batch_size = opts[:max_batch_size] || 1000
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# Start a timer for batch processing
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timer = Process.send_after(self(), :process_batch, batch_timeout)
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# Extract subscription options if provided
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subscribe_to = opts[:subscribe_to] || [{Aprsme.PacketProducer, max_demand: opts[:max_demand] || 250}]
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{:consumer,
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%{
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batch: [],
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batch_size: batch_size,
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batch_timeout: batch_timeout,
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max_batch_size: max_batch_size,
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timer: timer
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}, subscribe_to: subscribe_to}
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end
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@impl true
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def handle_events(
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events,
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_from,
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%{batch: batch, batch_size: batch_size, max_batch_size: max_batch_size, timer: timer} = state
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) do
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# More efficient: prepend events to batch (O(n) where n = length of events)
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new_batch = events ++ batch
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new_batch_length = length(new_batch)
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cond do
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new_batch_length >= max_batch_size ->
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# If batch exceeds maximum size, process immediately and drop excess
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{process_batch, drop_batch} = Enum.split(new_batch, max_batch_size)
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process_batch(process_batch)
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# Log warning about dropping packets (sanitized)
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if length(drop_batch) > 0 do
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Logger.warning("Dropped #{length(drop_batch)} packets due to batch size limit",
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batch_info:
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LogSanitizer.log_data(
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dropped_count: length(drop_batch),
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processed_count: length(process_batch),
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reason: "batch_size_limit_exceeded"
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)
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)
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end
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# Cancel and restart timer
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if timer, do: Process.cancel_timer(timer)
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new_timer = Process.send_after(self(), :process_batch, state.batch_timeout)
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{:noreply, [], %{state | batch: [], timer: new_timer}}
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new_batch_length >= batch_size ->
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# Process the batch immediately
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process_batch(new_batch)
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# Cancel and restart timer
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if timer, do: Process.cancel_timer(timer)
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new_timer = Process.send_after(self(), :process_batch, state.batch_timeout)
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{:noreply, [], %{state | batch: [], timer: new_timer}}
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true ->
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# Add to batch and wait for more
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{:noreply, [], %{state | batch: new_batch}}
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end
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end
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@impl true
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def handle_info(:process_batch, %{batch: batch, batch_timeout: timeout, max_batch_size: max_batch_size} = state) do
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if length(batch) > 0 do
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# Check if batch size is concerning
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if length(batch) > max_batch_size * 0.8 do
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Logger.warning("Batch size approaching limit",
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batch_status:
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LogSanitizer.log_data(
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current_size: length(batch),
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max_size: max_batch_size,
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utilization_percent: trunc(length(batch) / max_batch_size * 100)
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)
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)
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end
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process_batch(batch)
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end
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# Start a new timer
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timer = Process.send_after(self(), :process_batch, timeout)
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{:noreply, [], %{state | batch: [], timer: timer}}
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end
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defp process_batch(packets) do
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require Logger
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# Monitor memory usage before processing (only this process)
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{:memory, memory_before} = Process.info(self(), :memory)
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start_time = System.monotonic_time(:millisecond)
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# Chunk size optimized for PostgreSQL work_mem=16MB
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# Using smaller batches to reduce memory pressure
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chunk_size = Application.get_env(:aprsme, :packet_pipeline)[:batch_size] || 100
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# Use Stream for memory-efficient processing
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# Process and reduce in one pass to avoid materializing the entire list
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{success_count, error_count} =
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packets
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|> Stream.chunk_every(chunk_size)
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|> Stream.map(&process_chunk/1)
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|> Enum.reduce({0, 0}, fn {success, error}, {total_success, total_error} ->
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{total_success + success, total_error + error}
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end)
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end_time = System.monotonic_time(:millisecond)
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duration = end_time - start_time
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# Monitor memory usage after processing (only this process)
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{:memory, memory_after} = Process.info(self(), :memory)
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memory_diff = memory_after - memory_before
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# Get current process memory info
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process_info = Process.info(self(), [:memory, :heap_size, :total_heap_size])
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# Force garbage collection if memory usage is high
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# 50MB threshold for memory diff (per process)
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# 100MB threshold for process memory
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if memory_diff > 52_428_800 or process_info[:memory] > 104_857_600 do
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:erlang.garbage_collect()
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Logger.warning("High memory usage detected, forced garbage collection",
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memory_info:
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LogSanitizer.log_data(
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memory_diff_bytes: memory_diff,
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process_memory: process_info[:memory],
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heap_size: process_info[:heap_size],
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total_heap_size: process_info[:total_heap_size],
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batch_size: length(packets),
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gc_forced: true
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)
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)
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end
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# Only do minor GC after very large batches to prevent memory accumulation
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# This should rarely trigger with batch_size of 100
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if length(packets) > 1000 do
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:erlang.garbage_collect(self(), type: :minor)
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end
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:telemetry.execute(
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[
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:aprsme,
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:packet_pipeline,
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:batch
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],
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%{
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count: length(packets),
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success: success_count,
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error: error_count,
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duration_ms: duration,
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memory_diff: memory_diff
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},
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%{}
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)
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# Logger.info("Batch processing completed",
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# batch_result:
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# LogSanitizer.log_data(
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# packet_count: length(packets),
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# duration_ms: duration,
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# success_count: success_count,
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# error_count: error_count,
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# memory_diff_bytes: memory_diff
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# )
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# )
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end
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defp process_chunk(packets) do
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# Use Stream for memory-efficient packet preparation
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packet_stream =
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packets
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|> Stream.map(&prepare_packet_for_insert/1)
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|> Stream.map(&truncate_datetimes_to_second/1)
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|> Stream.reject(&is_nil/1)
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# Separate valid and invalid packets using Stream
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{valid_packets, invalid_count} =
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Enum.reduce(packet_stream, {[], 0}, fn packet, {valid_acc, invalid_acc} ->
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if valid_packet?(packet) do
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{[packet | valid_acc], invalid_acc}
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else
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{valid_acc, invalid_acc + 1}
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end
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end)
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# Reverse to maintain order
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valid_packets = Enum.reverse(valid_packets)
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# Insert valid packets in batch
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# Optimized for PostgreSQL with synchronous_commit=off
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insert_opts = [
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# Don't return IDs for better performance
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returning: false,
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# Skip conflicts to avoid blocking
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on_conflict: :nothing,
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# Increased timeout for large batches
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timeout: 60_000,
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# Use placeholders for better performance with large batches
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placeholders: length(valid_packets) > 100
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]
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case Repo.insert_all(Aprsme.Packet, valid_packets, insert_opts) do
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{:error, error} ->
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Logger.error("Batch insert failed: #{inspect(error)}")
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# Log sample packet to help debug field issues
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if length(valid_packets) > 0 do
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sample_packet = List.first(valid_packets)
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Logger.error("Sample packet fields: #{inspect(Map.keys(sample_packet))}")
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Logger.error("Sample packet data: #{inspect(sample_packet)}")
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end
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{0, length(packets)}
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{inserted_count, _} ->
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# Broadcast successfully inserted packets to StreamingPacketsPubSub
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broadcast_packets_async(valid_packets)
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{inserted_count, invalid_count}
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end
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end
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# Broadcast packets asynchronously to avoid blocking
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defp broadcast_packets_async(packets) do
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Task.start(fn ->
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try do
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cluster_enabled = Application.get_env(:aprsme, :cluster_enabled, false)
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Enum.each(packets, fn packet_attrs ->
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# Convert back to a format suitable for broadcasting
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packet = %{
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sender: packet_attrs[:sender],
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latitude: packet_attrs[:lat],
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longitude: packet_attrs[:lon],
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received_at: packet_attrs[:received_at],
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data_type: packet_attrs[:data_type],
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altitude: packet_attrs[:altitude],
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speed: packet_attrs[:speed],
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course: packet_attrs[:course],
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comment: packet_attrs[:comment]
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}
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if cluster_enabled do
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# Use cluster distributor to broadcast to all nodes
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Aprsme.Cluster.PacketDistributor.distribute_packet(packet)
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else
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# Normal single-node broadcasting
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Aprsme.StreamingPacketsPubSub.broadcast_packet(packet)
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# Also broadcast to SpatialPubSub for viewport-based filtering
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Aprsme.SpatialPubSub.broadcast_packet(packet)
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end
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end)
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rescue
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error ->
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Logger.error("Failed to broadcast packets asynchronously: #{inspect(error)}")
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end
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end)
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end
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defp prepare_packet_for_insert(packet_data) do
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# Always set received_at timestamp to ensure consistency
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current_time = DateTime.truncate(DateTime.utc_now(), :microsecond)
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packet_data = Map.put(packet_data, :received_at, current_time)
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# Convert to map before storing to avoid struct conversion issues
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attrs = struct_to_map(packet_data)
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# Extract additional data from the parsed packet including raw packet
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attrs = Aprsme.Packet.extract_additional_data(attrs, attrs[:raw_packet] || "")
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# Detect and set item/object fields
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attrs = detect_item_or_object(attrs)
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# Normalize data_type to string if it's an atom
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attrs = normalize_data_type(attrs)
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# Apply the same processing as the original store_packet function
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attrs
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|> convert_coordinate_field_names()
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|> normalize_packet_attrs()
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|> set_received_at()
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|> patch_lat_lon_from_data_extended()
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|> then(fn attrs ->
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{lat, lon} = extract_position(attrs)
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set_lat_lon(attrs, lat, lon)
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end)
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|> normalize_ssid()
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|> then(fn attrs ->
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device_identifier = Aprsme.DeviceParser.extract_device_identifier(packet_data)
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Map.put(attrs, :device_identifier, device_identifier)
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end)
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|> sanitize_packet_strings()
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|> Map.put(:inserted_at, current_time)
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|> Map.put(:updated_at, current_time)
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|> Map.delete(:id)
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|> Map.delete("id")
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# Remove embedded field for batch insert
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|> Map.delete(:data_extended)
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|> normalize_numeric_types()
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|> truncate_datetimes_to_second()
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# Remove all non-schema fields
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|> remove_non_schema_fields()
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# Create PostGIS geometry for location field
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|> create_location_geometry()
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rescue
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error ->
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Logger.error("Failed to prepare packet for batch insert: #{inspect(error)}")
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nil
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end
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# Create PostGIS geometry from lat/lon coordinates
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defp create_location_geometry(attrs) do
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lat = attrs[:lat]
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lon = attrs[:lon]
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if valid_coordinates?(lat, lon) do
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location = create_point(lat, lon)
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if location do
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Map.put(attrs, :location, location)
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else
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attrs
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end
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else
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attrs
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end
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end
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# Helper function to remove fields that exist in parser output but not in database schema
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defp remove_non_schema_fields(attrs) do
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attrs
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# Remove fields that parser adds but aren't in our schema
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|> Map.delete(:type)
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|> Map.delete("type")
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|> Map.delete(:digipeaters)
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|> Map.delete("digipeaters")
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|> Map.delete(:daodatumbyte)
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|> Map.delete("daodatumbyte")
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|> Map.delete(:mbits)
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|> Map.delete("mbits")
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|> Map.delete(:message)
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|> Map.delete("message")
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|> Map.delete(:phg)
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|> Map.delete("phg")
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|> Map.delete(:wx)
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|> Map.delete("wx")
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|> Map.delete(:resultcode)
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|> Map.delete("resultcode")
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|> Map.delete(:resultmsg)
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|> Map.delete("resultmsg")
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|> Map.delete(:gpsfixstatus)
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|> Map.delete("gpsfixstatus")
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|> Map.delete(:raw_weather_data)
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|> Map.delete("raw_weather_data")
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# Additional fields that need coordinate name mapping
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|> Map.delete(:longitude)
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|> Map.delete("longitude")
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|> Map.delete(:latitude)
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|> Map.delete("latitude")
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end
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# Helper functions for coordinate validation and point creation
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defp valid_coordinates?(lat, lon) do
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lat = normalize_coordinate(lat)
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lon = normalize_coordinate(lon)
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is_number(lat) && is_number(lon) &&
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lat >= -90 && lat <= 90 &&
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lon >= -180 && lon <= 180
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end
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defp normalize_coordinate(%Decimal{} = decimal), do: Decimal.to_float(decimal)
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defp normalize_coordinate(coord), do: coord
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defp create_point(lat, lon)
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when (is_number(lat) or is_struct(lat, Decimal)) and (is_number(lon) or is_struct(lon, Decimal)) do
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lat = normalize_coordinate(lat)
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lon = normalize_coordinate(lon)
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if valid_coordinates?(lat, lon) do
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%Geo.Point{coordinates: {lon, lat}, srid: 4326}
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end
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end
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defp create_point(_, _), do: nil
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defp valid_packet?(nil), do: false
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defp valid_packet?(%{sender: sender}) when is_binary(sender) and byte_size(sender) > 0, do: true
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defp valid_packet?(_), do: false
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# Detect if packet is an item or object and set appropriate fields
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defp detect_item_or_object(attrs) do
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cond do
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# Check for itemname field from parser
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Map.has_key?(attrs, :itemname) or Map.has_key?(attrs, "itemname") ->
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item_name = Map.get(attrs, :itemname) || Map.get(attrs, "itemname")
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attrs
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|> Map.put(:item_name, item_name)
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|> Map.put(:is_item, true)
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|> Map.delete(:itemname)
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|> Map.delete("itemname")
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# Check for object data type and extract object name from data_extended
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attrs[:data_type] == "object" or attrs["data_type"] == "object" ->
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object_name = extract_object_name(attrs)
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attrs
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|> Map.put(:object_name, object_name)
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|> Map.put(:is_object, true)
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# Check information field for object format (starts with ;)
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is_binary(attrs[:information_field]) and String.starts_with?(attrs[:information_field], ";") ->
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# Extract object name from information field
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object_name = extract_object_name_from_info_field(attrs[:information_field])
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attrs
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|> Map.put(:object_name, object_name)
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|> Map.put(:is_object, true)
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true ->
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attrs
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end
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end
|
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|
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defp extract_object_name(attrs) do
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case attrs[:data_extended] do
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%{name: name} when is_binary(name) -> name
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%{"name" => name} when is_binary(name) -> name
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_ -> nil
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end
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end
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defp extract_object_name_from_info_field(info_field) do
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# Object format: ;OBJECTNAM*DDHHMMz...
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case Regex.run(~r/^;([A-Z0-9 ]{9})\*/, info_field) do
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[_, name] -> String.trim(name)
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_ -> nil
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end
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end
|
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|
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# Convert latitude/longitude to lat/lon if present at top level
|
|
defp convert_coordinate_field_names(attrs) do
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attrs
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|> then(fn a ->
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case Map.get(a, :latitude) do
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nil -> a
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lat -> a |> Map.put(:lat, lat) |> Map.delete(:latitude)
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end
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end)
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|> then(fn a ->
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case Map.get(a, :longitude) do
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nil -> a
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lon -> a |> Map.put(:lon, lon) |> Map.delete(:longitude)
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end
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end)
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end
|
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|
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# Helper functions copied from Packets module for consistency
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|
defp normalize_packet_attrs(attrs) do
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attrs
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|> Map.put_new(:base_callsign, attrs[:sender])
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|> Map.put_new(:data_type, "unknown")
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|> Map.put_new(:destination, "")
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|> Map.put_new(:information_field, "")
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|> Map.put_new(:path, "")
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|> Map.put_new(:ssid, "")
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|> Map.put_new(:data_extended, %{})
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end
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|
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defp set_received_at(attrs) do
|
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received_at = attrs[:received_at] || DateTime.utc_now()
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Map.put(attrs, :received_at, received_at)
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end
|
|
|
|
defp patch_lat_lon_from_data_extended(attrs) do
|
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case attrs[:data_extended] do
|
|
%{latitude: lat, longitude: lon} when not is_nil(lat) and not is_nil(lon) ->
|
|
attrs
|
|
|> Map.put(:lat, lat)
|
|
|> Map.put(:lon, lon)
|
|
|> Map.put(:has_position, true)
|
|
|
|
_ ->
|
|
attrs
|
|
end
|
|
end
|
|
|
|
defp extract_position(packet_data) do
|
|
if not is_nil(packet_data[:lat]) and not is_nil(packet_data[:lon]) do
|
|
{to_float(packet_data.lat), to_float(packet_data.lon)}
|
|
else
|
|
extract_position_from_data_extended(packet_data[:data_extended])
|
|
end
|
|
end
|
|
|
|
defp extract_position_from_data_extended(nil), do: {nil, nil}
|
|
|
|
defp extract_position_from_data_extended(data_extended) when is_map(data_extended) do
|
|
if has_standard_position?(data_extended) do
|
|
extract_standard_position(data_extended)
|
|
else
|
|
extract_position_from_data_extended_case(data_extended)
|
|
end
|
|
end
|
|
|
|
defp extract_position_from_data_extended(_), do: {nil, nil}
|
|
|
|
defp has_standard_position?(data_extended) when is_map(data_extended) and not is_struct(data_extended) do
|
|
not is_nil(data_extended[:latitude]) and not is_nil(data_extended[:longitude])
|
|
end
|
|
|
|
defp has_standard_position?(_), do: false
|
|
|
|
defp extract_standard_position(data_extended) when is_map(data_extended) and not is_struct(data_extended) do
|
|
{to_float(data_extended[:latitude]), to_float(data_extended[:longitude])}
|
|
end
|
|
|
|
defp extract_standard_position(_), do: {nil, nil}
|
|
|
|
defp extract_position_from_data_extended_case(data_extended) do
|
|
lat = extract_lat_from_ext_map(data_extended)
|
|
lon = extract_lon_from_ext_map(data_extended)
|
|
{to_float(lat), to_float(lon)}
|
|
end
|
|
|
|
defp extract_lat_from_ext_map(ext_map) do
|
|
ext_map[:latitude] || ext_map["latitude"] ||
|
|
(Map.has_key?(ext_map, :position) &&
|
|
(ext_map[:position][:latitude] || ext_map[:position]["latitude"])) ||
|
|
(Map.has_key?(ext_map, "position") &&
|
|
(ext_map["position"][:latitude] || ext_map["position"]["latitude"]))
|
|
end
|
|
|
|
defp extract_lon_from_ext_map(ext_map) do
|
|
ext_map[:longitude] || ext_map["longitude"] ||
|
|
(Map.has_key?(ext_map, :position) &&
|
|
(ext_map[:position][:longitude] || ext_map[:position]["longitude"])) ||
|
|
(Map.has_key?(ext_map, "position") &&
|
|
(ext_map["position"][:longitude] || ext_map["position"]["longitude"]))
|
|
end
|
|
|
|
defp set_lat_lon(attrs, lat, lon) do
|
|
round6 = fn
|
|
nil ->
|
|
nil
|
|
|
|
n when is_float(n) ->
|
|
Float.round(n, 6)
|
|
end
|
|
|
|
attrs
|
|
|> Map.put(:lat, round6.(lat))
|
|
|> Map.put(:lon, round6.(lon))
|
|
|> Map.put(:has_position, not is_nil(lat) and not is_nil(lon))
|
|
end
|
|
|
|
defp normalize_ssid(attrs) do
|
|
case Map.get(attrs, :ssid) do
|
|
nil -> attrs
|
|
ssid -> Map.put(attrs, :ssid, to_string(ssid))
|
|
end
|
|
end
|
|
|
|
defp sanitize_packet_strings(value), do: Aprsme.EncodingUtils.sanitize_packet_strings(value)
|
|
|
|
defp to_float(value), do: Aprsme.EncodingUtils.to_float(value)
|
|
|
|
defp normalize_data_type(attrs), do: Aprsme.EncodingUtils.normalize_data_type(attrs)
|
|
|
|
defp struct_to_map(%{__struct__: ParseError} = error) do
|
|
# Handle ParseError specially to avoid Access behavior issues
|
|
%{
|
|
error_code: error.error_code,
|
|
message: error.message,
|
|
__original_struct__: ParseError
|
|
}
|
|
end
|
|
|
|
defp struct_to_map(%{__struct__: struct_type} = struct) do
|
|
converted_map =
|
|
struct
|
|
|> Map.from_struct()
|
|
|> Map.new(fn {k, v} -> {k, struct_to_map(v)} end)
|
|
|
|
Map.put(converted_map, :__original_struct__, struct_type)
|
|
end
|
|
|
|
defp struct_to_map(value) when is_list(value) do
|
|
Enum.map(value, &struct_to_map/1)
|
|
end
|
|
|
|
defp struct_to_map(value), do: value
|
|
|
|
defp truncate_datetimes_to_second(%DateTime{} = dt), do: DateTime.truncate(dt, :second)
|
|
defp truncate_datetimes_to_second({:ok, %DateTime{} = dt}), do: DateTime.truncate(dt, :second)
|
|
defp truncate_datetimes_to_second({:error, _reason}), do: nil
|
|
|
|
defp truncate_datetimes_to_second(term) when is_map(term) and not is_struct(term) do
|
|
Map.new(term, fn {k, v} -> {k, truncate_datetimes_to_second(v)} end)
|
|
end
|
|
|
|
defp truncate_datetimes_to_second(list) when is_list(list), do: Enum.map(list, &truncate_datetimes_to_second/1)
|
|
defp truncate_datetimes_to_second(other), do: other
|
|
|
|
defp normalize_numeric_types(attrs) do
|
|
# Convert integer values to floats for float fields
|
|
float_fields = [
|
|
:temperature,
|
|
:humidity,
|
|
:wind_speed,
|
|
:wind_gust,
|
|
:pressure,
|
|
:rain_1h,
|
|
:rain_24h,
|
|
:rain_since_midnight,
|
|
:snow,
|
|
:speed,
|
|
:altitude
|
|
]
|
|
|
|
Enum.reduce(float_fields, attrs, fn field, acc ->
|
|
case Map.get(acc, field) do
|
|
value when is_integer(value) -> Map.put(acc, field, value * 1.0)
|
|
_ -> acc
|
|
end
|
|
end)
|
|
end
|
|
end
|