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// Code generated by ndpgen. DO NOT EDIT.
//
// This file contains client wrappers for the Config host service.
// It is intended for use in Navidrome plugins built with extism-pdk.

use extism_pdk::*;
use serde::{Deserialize, Serialize};

#[derive(Debug, Clone, Serialize)]
#[serde(rename_all = "camelCase")]
struct ConfigGetRequest {
    key: String,
}

#[derive(Debug, Clone, Deserialize)]
#[serde(rename_all = "camelCase")]
struct ConfigGetResponse {
    #[serde(default)]
    value: String,
    #[serde(default)]
    exists: bool,
    #[serde(default)]
    error: Option<String>,
}

#[derive(Debug, Clone, Serialize)]
#[serde(rename_all = "camelCase")]
struct ConfigSetRequest {
    key: String,
    value: String,
}

#[derive(Debug, Clone, Deserialize)]
#[serde(rename_all = "camelCase")]
struct ConfigSetResponse {
    #[serde(default)]
    error: Option<String>,
}

#[derive(Debug, Clone, Serialize)]
#[serde(rename_all = "camelCase")]
struct ConfigHasRequest {
    key: String,
}

#[derive(Debug, Clone, Deserialize)]
#[serde(rename_all = "camelCase")]
struct ConfigHasResponse {
    #[serde(default)]
    exists: bool,
    #[serde(default)]
    error: Option<String>,
}

#[host_fn]
extern "ExtismHost" {
    fn config_get(input: Json<ConfigGetRequest>) -> Json<ConfigGetResponse>;
    fn config_set(input: Json<ConfigSetRequest>) -> Json<ConfigSetResponse>;
    fn config_has(input: Json<ConfigHasRequest>) -> Json<ConfigHasResponse>;
}

/// Calls the config_get host function.
///
/// # Arguments
/// * `key` - String parameter.
///
/// # Returns
/// `Some(value)` if found, `None` otherwise.
///
/// # Errors
/// Returns an error if the host function call fails.
pub fn get(key: &str) -> Result<Option<String>, Error> {
    let response = unsafe {
        config_get(Json(ConfigGetRequest {
            key: key.to_owned(),
        }))?
    };

    if let Some(err) = response.0.error {
        return Err(Error::msg(err));
    }

    if response.0.exists {
        Ok(Some(response.0.value))
    } else {
        Ok(None)
    }
}

/// Calls the config_set host function.
///
/// # Arguments
/// * `key` - String parameter.
/// * `value` - String parameter.
///
/// # Errors
/// Returns an error if the host function call fails.
pub fn set(key: &str, value: &str) -> Result<(), Error> {
    let response = unsafe {
        config_set(Json(ConfigSetRequest {
            key: key.to_owned(),
            value: value.to_owned(),
        }))?
    };

    if let Some(err) = response.0.error {
        return Err(Error::msg(err));
    }

    Ok(())
}

/// Calls the config_has host function.
///
/// # Arguments
/// * `key` - String parameter.
///
/// # Returns
/// The exists value.
///
/// # Errors
/// Returns an error if the host function call fails.
pub fn has(key: &str) -> Result<bool, Error> {
    let response = unsafe {
        config_has(Json(ConfigHasRequest {
            key: key.to_owned(),
        }))?
    };

    if let Some(err) = response.0.error {
        return Err(Error::msg(err));
    }

    Ok(response.0.exists)
}