digraph local_architecture {
    rankdir=TB
    node [shape=box, style=rounded, fontname="Helvetica"]
    edge [fontname="Helvetica", fontsize=10]

    labelloc="t"
    label="MPR - Local Architecture (Celery + MinIO)"
    fontsize=16
    fontname="Helvetica-Bold"

    graph [splines=ortho, nodesep=0.8, ranksep=0.8]

    // External
    subgraph cluster_external {
        label="External"
        style=dashed
        color=gray

        browser [label="Browser\nmpr.local.ar", shape=ellipse]
    }

    // Nginx reverse proxy
    subgraph cluster_proxy {
        label="Reverse Proxy"
        style=filled
        fillcolor="#e8f4f8"

        nginx [label="nginx\nport 80"]
    }

    // Application layer
    subgraph cluster_apps {
        label="Application Layer"
        style=filled
        fillcolor="#f0f8e8"

        django [label="Django Admin\n/admin\nport 8701"]
        fastapi [label="FastAPI + GraphQL\n/api + /graphql\nport 8702"]
        timeline [label="Timeline UI\n/\nport 5173"]
    }

    // Worker layer
    subgraph cluster_workers {
        label="Worker Layer"
        style=filled
        fillcolor="#fff8e8"

        grpc_server [label="gRPC Server\nport 50051"]
        celery [label="Celery Worker\nFFmpeg transcoding"]
    }

    // Data layer
    subgraph cluster_data {
        label="Data Layer"
        style=filled
        fillcolor="#f8e8f0"

        postgres [label="PostgreSQL\nport 5436", shape=cylinder]
        redis [label="Redis\nCelery queue\nport 6381", shape=cylinder]
    }

    // Storage
    subgraph cluster_storage {
        label="S3 Storage (MinIO)"
        style=filled
        fillcolor="#f0f0f0"

        minio [label="MinIO\nS3-compatible API\nport 9000", shape=folder]
        bucket_in [label="mpr-media-in/\ninput videos", shape=note]
        bucket_out [label="mpr-media-out/\ntranscoded output", shape=note]
    }

    // Connections
    browser -> nginx [label="HTTP"]

    nginx -> django [xlabel="/admin"]
    nginx -> fastapi [xlabel="/api, /graphql"]
    nginx -> timeline [xlabel="/"]
    nginx -> minio [xlabel="/media/*"]

    timeline -> fastapi [label="REST API\nGraphQL"]
    django -> postgres

    fastapi -> postgres [label="read/write jobs"]
    fastapi -> grpc_server [label="gRPC\nprogress updates"]

    grpc_server -> celery [label="dispatch tasks"]
    celery -> redis [label="task queue"]
    celery -> postgres [label="update job status"]
    celery -> minio [label="S3 API\ndownload input\nupload output"]

    minio -> bucket_in [style=dotted, arrowhead=none]
    minio -> bucket_out [style=dotted, arrowhead=none]
}