// Unless explicitly stated otherwise all files in this repository are licensed under the Apache-2.0 License.
// This product includes software developed at Datadog (https://www.datadoghq.com/).
// Copyright 2019-Present Datadog, Inc.
use serde::de::{Error, MapAccess, Visitor};
use serde::{Deserialize, Deserializer, Serialize};
use serde_with::skip_serializing_none;
use std::fmt::{self, Formatter};

/// The Splunk HTTP Event Collector (HEC) destination.
#[non_exhaustive]
#[skip_serializing_none]
#[derive(Clone, Debug, PartialEq, Serialize)]
pub struct CustomDestinationForwardDestinationSplunk {
    /// Access token of the Splunk HTTP Event Collector. This field is not returned by the API.
    #[serde(rename = "access_token")]
    pub access_token: String,
    /// The destination for which logs will be forwarded to.
    /// Must have HTTPS scheme and forwarding back to Datadog is not allowed.
    #[serde(rename = "endpoint")]
    pub endpoint: String,
    /// The Splunk sourcetype for the events sent to this Splunk destination.
    ///
    /// If the field is absent from the request and no sourcetype has been previously set on this destination, the default sourcetype `_json` is used.
    /// On update, if the field is absent from the request but a sourcetype was previously set, the previous value is kept.
    /// If set to `null`, the sourcetype field is omitted from the forwarded event entirely.
    /// Otherwise, the provided string value is used as the sourcetype.
    #[serde(
        rename = "sourcetype",
        default,
        with = "::serde_with::rust::double_option"
    )]
    pub sourcetype: Option<Option<String>>,
    /// Type of the Splunk HTTP Event Collector (HEC) destination.
    #[serde(rename = "type")]
    pub type_: crate::datadogV2::model::CustomDestinationForwardDestinationSplunkType,
    #[serde(flatten)]
    pub additional_properties: std::collections::BTreeMap<String, serde_json::Value>,
    #[serde(skip)]
    #[serde(default)]
    pub(crate) _unparsed: bool,
}

impl CustomDestinationForwardDestinationSplunk {
    pub fn new(
        access_token: String,
        endpoint: String,
        type_: crate::datadogV2::model::CustomDestinationForwardDestinationSplunkType,
    ) -> CustomDestinationForwardDestinationSplunk {
        CustomDestinationForwardDestinationSplunk {
            access_token,
            endpoint,
            sourcetype: None,
            type_,
            additional_properties: std::collections::BTreeMap::new(),
            _unparsed: false,
        }
    }

    pub fn sourcetype(mut self, value: Option<String>) -> Self {
        self.sourcetype = Some(value);
        self
    }

    pub fn additional_properties(
        mut self,
        value: std::collections::BTreeMap<String, serde_json::Value>,
    ) -> Self {
        self.additional_properties = value;
        self
    }
}

impl<'de> Deserialize<'de> for CustomDestinationForwardDestinationSplunk {
    fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
    where
        D: Deserializer<'de>,
    {
        struct CustomDestinationForwardDestinationSplunkVisitor;
        impl<'a> Visitor<'a> for CustomDestinationForwardDestinationSplunkVisitor {
            type Value = CustomDestinationForwardDestinationSplunk;

            fn expecting(&self, f: &mut Formatter<'_>) -> fmt::Result {
                f.write_str("a mapping")
            }

            fn visit_map<M>(self, mut map: M) -> Result<Self::Value, M::Error>
            where
                M: MapAccess<'a>,
            {
                let mut access_token: Option<String> = None;
                let mut endpoint: Option<String> = None;
                let mut sourcetype: Option<Option<String>> = None;
                let mut type_: Option<
                    crate::datadogV2::model::CustomDestinationForwardDestinationSplunkType,
                > = None;
                let mut additional_properties: std::collections::BTreeMap<
                    String,
                    serde_json::Value,
                > = std::collections::BTreeMap::new();
                let mut _unparsed = false;

                while let Some((k, v)) = map.next_entry::<String, serde_json::Value>()? {
                    match k.as_str() {
                        "access_token" => {
                            access_token =
                                Some(serde_json::from_value(v).map_err(M::Error::custom)?);
                        }
                        "endpoint" => {
                            endpoint = Some(serde_json::from_value(v).map_err(M::Error::custom)?);
                        }
                        "sourcetype" => {
                            sourcetype = Some(serde_json::from_value(v).map_err(M::Error::custom)?);
                        }
                        "type" => {
                            type_ = Some(serde_json::from_value(v).map_err(M::Error::custom)?);
                            if let Some(ref _type_) = type_ {
                                match _type_ {
                                    crate::datadogV2::model::CustomDestinationForwardDestinationSplunkType::UnparsedObject(_type_) => {
                                        _unparsed = true;
                                    },
                                    _ => {}
                                }
                            }
                        }
                        &_ => {
                            if let Ok(value) = serde_json::from_value(v.clone()) {
                                additional_properties.insert(k, value);
                            }
                        }
                    }
                }
                let access_token =
                    access_token.ok_or_else(|| M::Error::missing_field("access_token"))?;
                let endpoint = endpoint.ok_or_else(|| M::Error::missing_field("endpoint"))?;
                let type_ = type_.ok_or_else(|| M::Error::missing_field("type_"))?;

                let content = CustomDestinationForwardDestinationSplunk {
                    access_token,
                    endpoint,
                    sourcetype,
                    type_,
                    additional_properties,
                    _unparsed,
                };

                Ok(content)
            }
        }

        deserializer.deserialize_any(CustomDestinationForwardDestinationSplunkVisitor)
    }
}
