# @formatter:off
# Note: see `example_config.yaml` for `frontends` and `*hooks` config description


announce_interval: 30m
min_announce_interval: 15m
metrics_addr: ""

frontends:
    -   name: http
        config:
            addr: "0.0.0.0:6969"
            tls: false
            tls_cert_path: ""
            tls_key_path: ""
            reuse_port: true
            read_timeout: 5s
            write_timeout: 5s
            enable_keepalive: false
            idle_timeout: 30s
            enable_request_timing: false
            announce_routes:
                - "/announce"
            scrape_routes:
                - "/scrape"
            ping_routes:
                - "/ping"
            allow_ip_spoofing: false
            filter_private_ips: false
            real_ip_header: "x-real-ip"
            max_numwant: 100
            default_numwant: 50
            max_scrape_infohashes: 50

    -   name: udp
        config:
            addr: "0.0.0.0:6969"
            reuse_port: true
            workers: 1
            max_clock_skew: 10s
            private_key: "paste a random string here that will be used to hmac connection IDs"
            enable_request_timing: false
            allow_ip_spoofing: false
            filter_private_ips: false
            max_numwant: 100
            default_numwant: 50
            max_scrape_infohashes: 50

# This block defines configuration used for PostgreSQL storage.
# example peers table structure:
# - info_hash bytea
# - peer_id bytea
# - address inet or bytea
# - port int4
# - is_seeder bool
# - is_v6 bool
# - created timestamp
# example downloads table structure:
# - info_hash bytea
# - downloads int
storage:
    name: pg
    config:
        # connection string to pg storage. may be URL (postgres://...) or DSN (host=... port=...)
        connection_string: host=127.0.0.1 database=test user=postgres pool_max_conns=50
        # query and parameters for announce operation
        announce:
            query: SELECT peer_id, address, port FROM mo_peers WHERE info_hash=@info_hash AND is_seeder=@is_seeder AND is_v6=@is_v6 LIMIT @count
            peer_id_column: peer_id
            address_column: address
            port_column: port

        # queries to get/increment 'snatched' (downloaded) count
        downloads:
            get_query: SELECT downloads FROM mo_downloads where info_hash=@info_hash
            inc_query: INSERT INTO mo_downloads VALUES(@info_hash) ON CONFLICT(info_hash) DO UPDATE SET downloads = mo_downloads.downloads + 1

        # queries and parameters for add/delete/count peers operations
        peer:
            add_query: INSERT INTO mo_peers VALUES(@info_hash, @peer_id, @address, @port, @is_seeder, @is_v6, @created) ON CONFLICT (info_hash, peer_id, address, port) DO UPDATE SET created = EXCLUDED.created, is_seeder = EXCLUDED.is_seeder
            del_query: DELETE FROM mo_peers WHERE info_hash=@info_hash AND peer_id=@peer_id AND address=@address AND port=@port AND is_seeder=@is_seeder
            graduate_query: UPDATE mo_peers SET is_seeder=TRUE WHERE info_hash=@info_hash AND peer_id=peer_id AND address=@address AND port=@port AND NOT is_seeder
            count_query: SELECT COUNT(1) FILTER (WHERE is_seeder) AS seeders, COUNT(1) FILTER (WHERE NOT is_seeder) AS leechers FROM mo_peers
            # predicate part of `count_query` to get count of peers by info hash
            by_info_hash_clause: WHERE info_hash = @info_hash
            count_seeders_column: seeders
            count_leechers_column: leechers

        # queries for KV-store
        data:
            add_query: INSERT INTO mo_kv VALUES(@context, @key, @value) ON CONFLICT (context, name) DO NOTHING
            # Note: in del_query @key parameter is array, NOT single value
            del_query: DELETE FROM mo_kv WHERE context=@context AND name = ANY(@key)
            get_query: SELECT value FROM mo_kv WHERE context=@context AND name=@key

        # query for check if database is alive
        ping_query: SELECT 1

        # query for garbage collection, expected parameter is timestamp
        gc_query: DELETE FROM mo_peers WHERE created <= @created

        # The amount of time until a peer is considered stale.
        # To avoid churn, keep this slightly larger than `announce_interval`
        peer_lifetime: 31m

        # The frequency which stale peers are removed.
        gc_interval: 3m

        # query for info hash statistics
        info_hash_count_query: SELECT COUNT(DISTINCT info_hash) as info_hashes FROM mo_peers

        # The interval at which metrics about the number of info hashes and peers
        # are collected and posted to Prometheus.
        prometheus_reporting_interval: 1s

posthooks: []
prehooks: []