use hyper_rustls::HttpsConnectorBuilder;
use hyper_util::rt::TokioExecutor;

mod fetch;

pub use fetch::*;

use crate::env::ENV;
use crate::queue::server_ping;
use crate::routes::analytics::MINECRAFT_SERVER_PLAYS;

pub async fn init_client() -> clickhouse::error::Result<clickhouse::Client> {
    init_client_with_database(&ENV.CLICKHOUSE_DATABASE).await
}

pub async fn init_client_with_database(
    database: &str,
) -> clickhouse::error::Result<clickhouse::Client> {
    const MINECRAFT_JAVA_SERVER_PINGS: &str = server_ping::CLICKHOUSE_TABLE;

    let client = {
        let https_connector = HttpsConnectorBuilder::new()
            .with_native_roots()?
            .https_or_http()
            .enable_all_versions()
            .build();
        let hyper_client =
            hyper_util::client::legacy::Client::builder(TokioExecutor::new())
                .build(https_connector);

        clickhouse::Client::with_http_client(hyper_client)
            .with_url(&ENV.CLICKHOUSE_URL)
            .with_user(&ENV.CLICKHOUSE_USER)
            .with_password(&ENV.CLICKHOUSE_PASSWORD)
            .with_validation(false)
    };

    client
        .query(&format!("CREATE DATABASE IF NOT EXISTS {database}"))
        .execute()
        .await?;

    let clickhouse_replicated = ENV.CLICKHOUSE_REPLICATED;
    let cluster_line = if clickhouse_replicated {
        "ON cluster '{cluster}'"
    } else {
        ""
    };

    let engine = if clickhouse_replicated {
        "ReplicatedMergeTree('/clickhouse/{installation}/{cluster}/tables/{shard}/{database}/{table}', '{replica}')"
    } else {
        "MergeTree()"
    };

    // For the Clickhouse database on the staging environment, set a TTL to avoid accumulating too much data
    let ttl = if database == "staging_analytics" {
        "TTL toDateTime(recorded) + INTERVAL 1 DAY"
    } else {
        ""
    };

    client
        .query(&format!(
            "
            CREATE TABLE IF NOT EXISTS {database}.views {cluster_line}
            (
                recorded DateTime64(4),
                domain String,
                site_path String,

                user_id UInt64,
                project_id UInt64,
                monetized Bool DEFAULT True,

                ip IPv6,
                country String,
                user_agent String,
                headers Array(Tuple(String, String))
            )
            ENGINE = {engine}
            {ttl}
            PRIMARY KEY (project_id, recorded, ip)
            SETTINGS index_granularity = 8192
            "
        ))
        .execute()
        .await?;

    client
        .query(&format!(
            "
            CREATE TABLE IF NOT EXISTS {database}.downloads {cluster_line}
            (
                recorded DateTime64(4),
                domain String,
                site_path String,

                user_id UInt64,
                project_id UInt64,
                version_id UInt64,

                ip IPv6,
                country String,
                user_agent String,
                headers Array(Tuple(String, String))
            )
            ENGINE = {engine}
            {ttl}
            PRIMARY KEY (project_id, recorded, ip)
            SETTINGS index_granularity = 8192
            "
        ))
        .execute()
        .await?;

    client
        .query(&format!(
            "
            CREATE TABLE IF NOT EXISTS {database}.playtime {cluster_line}
            (
                recorded DateTime64(4),
                seconds UInt64,

                user_id UInt64,
                project_id UInt64,
                version_id UInt64,

                loader String,
                game_version String,
                parent UInt64
            )
            ENGINE = {engine}
            {ttl}
            PRIMARY KEY (project_id, recorded, user_id)
            SETTINGS index_granularity = 8192
            "
        ))
        .execute()
        .await?;

    client
        .query(&format!(
            "
            CREATE TABLE IF NOT EXISTS {database}.affiliate_code_clicks {cluster_line}
            (
                recorded DateTime64(4),
                domain String,

                user_id UInt64,
                affiliate_code_id UInt64,

                ip IPv6,
                country String,
                user_agent String,
                headers Array(Tuple(String, String))
            )
            ENGINE = {engine}
            {ttl}
            PRIMARY KEY (affiliate_code_id, recorded)
            SETTINGS index_granularity = 8192
            "
        ))
        .execute()
        .await?;

    client
        .query(&format!(
            "
            CREATE TABLE IF NOT EXISTS {database}.{MINECRAFT_JAVA_SERVER_PINGS} {cluster_line}
            (
                recorded DateTime64(4),
                project_id UInt64,
                address String,
                online Bool,
                latency_ms Nullable(UInt32),
                description Nullable(String),
                version_name Nullable(String),
                version_protocol Nullable(Int32),
                players_online Nullable(Int32),
                players_max Nullable(Int32)
            )
            ENGINE = {engine}
            {ttl}
            PRIMARY KEY (project_id, recorded)
            SETTINGS index_granularity = 8192
            "
        ))
        .execute()
        .await?;

    client
        .query(&format!(
            "
            CREATE TABLE IF NOT EXISTS {database}.{MINECRAFT_SERVER_PLAYS} {cluster_line}
            (
                recorded DateTime64(4),
                user_id UInt64,
                project_id UInt64,
                minecraft_uuid UUID
            )
            ENGINE = {engine}
            {ttl}
            PRIMARY KEY (project_id, recorded)
            SETTINGS index_granularity = 8192
            "
        ))
        .execute()
        .await?;

    client
        .query(&format!(
            "
            ALTER TABLE {database}.{MINECRAFT_SERVER_PLAYS} {cluster_line}
            ADD COLUMN IF NOT EXISTS minecraft_uuid UUID
            "
        ))
        .execute()
        .await?;

    client
        .query(&format!(
            "
            ALTER TABLE {database}.{MINECRAFT_SERVER_PLAYS} {cluster_line}
            ADD COLUMN IF NOT EXISTS ip IPv6 DEFAULT toIPv6('::')
            "
        ))
        .execute()
        .await?;

    client
        .query(&format!(
            "
            ALTER TABLE {database}.{MINECRAFT_JAVA_SERVER_PINGS} {cluster_line}
            DROP COLUMN IF EXISTS port
            "
        ))
        .execute()
        .await?;

    Ok(client.with_database(database))
}
