use serde::Serialize;

use gcp_bigquery_client::error::BQError;
use gcp_bigquery_client::model::dataset::Dataset;
use gcp_bigquery_client::model::query_request::QueryRequest;
use gcp_bigquery_client::model::table::Table;
use gcp_bigquery_client::model::table_data_insert_all_request::TableDataInsertAllRequest;
use gcp_bigquery_client::model::table_field_schema::TableFieldSchema;
use gcp_bigquery_client::model::table_schema::TableSchema;
use gcp_bigquery_client::model::time_partitioning::TimePartitioning;
use gcp_bigquery_client::{env_vars, model::query_response::ResultSet};
use std::time::{Duration, SystemTime};
use time::OffsetDateTime;

#[derive(Serialize)]
struct MyRow {
    ts: time::OffsetDateTime,
    int_value: i64,
    float_value: f64,
    bool_value: bool,
    string_value: String,
    record_value: FirstRecordLevel,
}

#[derive(Serialize)]
struct FirstRecordLevel {
    int_value: i64,
    string_value: String,
    record_value: SecondRecordLevel,
}

#[derive(Serialize)]
struct SecondRecordLevel {
    int_value: i64,
    string_value: String,
}

#[tokio::main]
async fn main() -> Result<(), BQError> {
    // Read configuration parameters from environment variables
    let (ref project_id, ref dataset_id, ref table_id, ref gcp_sa_key) = env_vars();

    // Init BigQuery client
    let client = gcp_bigquery_client::Client::from_service_account_key_file(gcp_sa_key).await?;

    // Delete the dataset if needed
    let result = client.dataset().delete(project_id, dataset_id, true).await;
    if result.is_ok() {
        println!("Removed previous dataset '{dataset_id}'");
    }

    // Create a new dataset
    let dataset = client
        .dataset()
        .create(
            Dataset::new(project_id, dataset_id)
                .location("US")
                .friendly_name("Just a demo dataset")
                .label("owner", "me")
                .label("env", "prod"),
        )
        .await?;

    // Create a new table
    let table = dataset
        .create_table(
            &client,
            Table::from_dataset(
                &dataset,
                table_id,
                TableSchema::new(vec![
                    TableFieldSchema::timestamp("ts"),
                    TableFieldSchema::integer("int_value"),
                    TableFieldSchema::float("float_value"),
                    TableFieldSchema::bool("bool_value"),
                    TableFieldSchema::string("string_value"),
                    TableFieldSchema::record(
                        "record_value",
                        vec![
                            TableFieldSchema::integer("int_value"),
                            TableFieldSchema::string("string_value"),
                            TableFieldSchema::record(
                                "record_value",
                                vec![
                                    TableFieldSchema::integer("int_value"),
                                    TableFieldSchema::string("string_value"),
                                ],
                            ),
                        ],
                    ),
                ]),
            )
            .friendly_name("Demo table")
            .description("A nice description for this table")
            .label("owner", "me")
            .label("env", "prod")
            .expiration_time(SystemTime::now() + Duration::from_secs(3600))
            .time_partitioning(
                TimePartitioning::per_day()
                    .expiration_ms(Duration::from_secs(3600 * 24 * 7))
                    .field("ts"),
            ),
        )
        .await?;
    println!("Table created -> {table:?}");

    // Insert data via BigQuery Streaming API
    let mut insert_request = TableDataInsertAllRequest::new();
    insert_request.add_row(
        None,
        MyRow {
            ts: OffsetDateTime::now_utc(),
            int_value: 1,
            float_value: 1.0,
            bool_value: false,
            string_value: "first".into(),
            record_value: FirstRecordLevel {
                int_value: 10,
                string_value: "sub_level_1.1".into(),
                record_value: SecondRecordLevel {
                    int_value: 20,
                    string_value: "leaf".to_string(),
                },
            },
        },
    )?;
    insert_request.add_row(
        None,
        MyRow {
            ts: OffsetDateTime::now_utc(),
            int_value: 2,
            float_value: 2.0,
            bool_value: true,
            string_value: "second".into(),
            record_value: FirstRecordLevel {
                int_value: 11,
                string_value: "sub_level_1.2".into(),
                record_value: SecondRecordLevel {
                    int_value: 21,
                    string_value: "leaf".to_string(),
                },
            },
        },
    )?;
    insert_request.add_row(
        None,
        MyRow {
            ts: OffsetDateTime::now_utc(),
            int_value: 3,
            float_value: 3.0,
            bool_value: false,
            string_value: "third".into(),
            record_value: FirstRecordLevel {
                int_value: 12,
                string_value: "sub_level_1.3".into(),
                record_value: SecondRecordLevel {
                    int_value: 22,
                    string_value: "leaf".to_string(),
                },
            },
        },
    )?;
    insert_request.add_row(
        None,
        MyRow {
            ts: OffsetDateTime::now_utc(),
            int_value: 4,
            float_value: 4.0,
            bool_value: true,
            string_value: "fourth".into(),
            record_value: FirstRecordLevel {
                int_value: 13,
                string_value: "sub_level_1.4".into(),
                record_value: SecondRecordLevel {
                    int_value: 23,
                    string_value: "leaf".to_string(),
                },
            },
        },
    )?;

    client
        .tabledata()
        .insert_all(project_id, dataset_id, table_id, insert_request)
        .await?;

    // Query
    let query_response = client
        .job()
        .query(
            project_id,
            QueryRequest::new(format!(
                "SELECT COUNT(*) AS c FROM `{project_id}.{dataset_id}.{table_id}`"
            )),
        )
        .await?;
    let mut rs = ResultSet::new_from_query_response(query_response);
    while rs.next_row() {
        println!("Number of rows inserted: {}", rs.get_i64_by_name("c")?.unwrap());
    }

    // Delete the table previously created
    client.table().delete(project_id, dataset_id, table_id).await?;

    // Delete the dataset previously created
    client.dataset().delete(project_id, dataset_id, true).await?;

    Ok(())
}