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// Copyright 2024 New Vector Ltd.
// Copyright 2023, 2024 The Matrix.org Foundation C.I.C.
//
// SPDX-License-Identifier: AGPL-3.0-only
// Please see LICENSE in the repository root for full details.

use chrono::Duration;
use schemars::JsonSchema;
use serde::{Deserialize, Serialize};
use serde_with::serde_as;

use crate::ConfigurationSection;

fn default_token_ttl() -> Duration {
    Duration::microseconds(5 * 60 * 1000 * 1000)
}

fn is_default_token_ttl(value: &Duration) -> bool {
    *value == default_token_ttl()
}

/// Configuration sections for experimental options
///
/// Do not change these options unless you know what you are doing.
#[serde_as]
#[allow(clippy::struct_excessive_bools)]
#[derive(Clone, Debug, Deserialize, JsonSchema, Serialize)]
pub struct ExperimentalConfig {
    /// Time-to-live of access tokens in seconds. Defaults to 5 minutes.
    #[schemars(with = "u64", range(min = 60, max = 86400))]
    #[serde(
        default = "default_token_ttl",
        skip_serializing_if = "is_default_token_ttl"
    )]
    #[serde_as(as = "serde_with::DurationSeconds<i64>")]
    pub access_token_ttl: Duration,

    /// Time-to-live of compatibility access tokens in seconds. Defaults to 5
    /// minutes.
    #[schemars(with = "u64", range(min = 60, max = 86400))]
    #[serde(
        default = "default_token_ttl",
        skip_serializing_if = "is_default_token_ttl"
    )]
    #[serde_as(as = "serde_with::DurationSeconds<i64>")]
    pub compat_token_ttl: Duration,
}

impl Default for ExperimentalConfig {
    fn default() -> Self {
        Self {
            access_token_ttl: default_token_ttl(),
            compat_token_ttl: default_token_ttl(),
        }
    }
}

impl ExperimentalConfig {
    pub(crate) fn is_default(&self) -> bool {
        is_default_token_ttl(&self.access_token_ttl) && is_default_token_ttl(&self.compat_token_ttl)
    }
}

impl ConfigurationSection for ExperimentalConfig {
    const PATH: Option<&'static str> = Some("experimental");
}