#!/usr/bin/env julia
# Test script for dictionary transfer from Julia serviceA to Julia serviceB
# Demonstrates the "Command & Control" scenario (small dictionary) using NATSBridge
#
# This is serviceA - the sender that sends a dummy dictionary to serviceB

using UUIDs
using JSON
using Dates

# Include the NATSBridge module
include("../src/NATSBridge.jl")

# Configuration
const SUBJECT = "/NATSBridge_dict_test"
const NATS_URL = "nats.yiem.cc"
const FILESERVER_URL = "http://192.168.88.104:8080"

# Create correlation ID for tracing
correlation_id = string(uuid4())


# ------------------------------------------------------------------------------------------------ #
#                                        dictionary sender                                          #
# ------------------------------------------------------------------------------------------------ #


# Helper: Log with correlation ID
function log_trace(message)
    timestamp = Dates.now()
    println("[$timestamp] [Correlation: $correlation_id] $message")
end


# Sender: Send a dummy dictionary to serviceB
function send_dictionary()
    # Create a dummy dictionary to send
    dummy_dict = Dict(
        "command" => "start_simulation",
        "simulation_id" => string(uuid4()),
        "duration_seconds" => 60,
        "parameters" => Dict(
            "temperature" => 25.5,
            "pressure" => 101.3,
            "active" => true,
            "tags" => ["test", "simulation", "julia_to_julia"]
        ),
        "metadata" => Dict(
            "sender" => "serviceA",
            "timestamp" => string(Dates.now())
        )
    )

    # Send the dictionary using smartsend with type="dictionary"
    # API: smartsend(subject, [(dataname, data, type), ...]; keywords...)
    env = NATSBridge.smartsend(
        SUBJECT,
        [("dummy_dict", dummy_dict, "dictionary")],  # List of (dataname, data, type) tuples
        nats_url = NATS_URL,
        fileserver_url = FILESERVER_URL,
        size_threshold = 1_000_000,  # 1MB threshold - dictionary will use direct transport
        correlation_id = correlation_id,
        msg_purpose = "chat",
        sender_name = "serviceA",
        receiver_name = "serviceB",
        reply_to = "",
        reply_to_msg_id = ""
    )

    log_trace("Sent dictionary via $(env.payloads[1].transport) transport")
    log_trace("Payload type: $(env.payloads[1].type)")
    log_trace("Envelope correlationId: $(env.correlationId)")
    
    # Display the sent dictionary
    println("\nSent dictionary content:")
    println(JSON.json(dummy_dict, 2))
end


# Run the test
println("Starting dictionary transfer test...")
println("Correlation ID: $correlation_id")
println("Subject: $SUBJECT")
println("NATS URL: $NATS_URL")

# Run sender
println("\n--- Sending dictionary ---")
send_dictionary()

println("\nTest completed.")