pub mod request {
    use serde::{Deserialize, Serialize};
    use utoipa::ToSchema;

    #[derive(Debug, Deserialize, Serialize, ToSchema)]
    pub struct AddContactRequest {
        pub phone_number: String,
        pub firstname: Option<String>,
        pub lastname: Option<String>,
        pub nickname: Option<String>,
        pub user_id: uuid::Uuid,
    }

    impl AddContactRequest {
        pub fn is_valid(&self) -> bool {
            !self.phone_number.is_empty() || !self.user_id.is_nil()
        }
    }

    #[derive(Debug, Default, serde::Deserialize, serde::Serialize, utoipa::ToSchema)]
    pub struct GetContactParams {
        pub id: Option<uuid::Uuid>,
        pub user_id: Option<uuid::Uuid>,
    }

    #[derive(Debug, Deserialize, Serialize, ToSchema)]
    pub struct UpdateContactNamesRequest {
        pub id: uuid::Uuid,
        pub firstname: Option<String>,
        pub lastname: Option<String>,
        pub nickname: Option<String>,
    }

    impl UpdateContactNamesRequest {
        pub fn is_valid(&self) -> bool {
            if self.id.is_nil() {
                false
            } else {
                self.firstname.is_some() || self.lastname.is_some() || self.nickname.is_some()
            }
        }
    }
}

pub mod response {
    use serde::{Deserialize, Serialize};
    use utoipa::ToSchema;

    #[derive(Debug, Default, Deserialize, Serialize, ToSchema)]
    pub struct AddContactResponse {
        pub message: String,
        pub data: Vec<schedtxt_models::contact::Contact>,
    }

    pub use AddContactResponse as GetContactResponse;

    #[derive(Debug, Default, Deserialize, Serialize, ToSchema)]
    pub struct UpdateContactNamesResponse {
        pub message: String,
        pub data: Vec<UpdateContactNameChange>,
    }

    #[derive(Debug, Default, Deserialize, Serialize, ToSchema)]
    pub struct UpdateContactNameChange {
        pub old_firstname: Option<String>,
        pub old_lastname: Option<String>,
        pub old_nickname: Option<String>,
        pub new_firstname: Option<String>,
        pub new_lastname: Option<String>,
        pub new_nickname: Option<String>,
    }
}

pub mod endpoint {
    use crate::repo::contact as contact_repo;

    /// Endpoint to create Contact
    #[utoipa::path(
    post,
    path = super::super::endpoints::ADD_CONTACT,
    request_body(
        content = super::request::AddContactRequest,
        description = "Data needed to create a Contact",
        content_type = "application/json"
        ),
    responses(
        (status = 201, description = "Contact  created", body = super::response::AddContactResponse),
        (status = 400, description = "Error", body = super::response::AddContactResponse),
        (status = 500, description = "Error creating Contact", body = super::response::AddContactResponse)
    )
)]
    pub async fn create_contact(
        axum::Extension(pool): axum::Extension<sqlx::PgPool>,
        axum::Json(payload): axum::Json<super::request::AddContactRequest>,
    ) -> (
        axum::http::StatusCode,
        axum::Json<super::response::AddContactResponse>,
    ) {
        let mut response = super::response::AddContactResponse::default();

        if payload.is_valid() {
            match contact_repo::get_with_user_id_and_phone(
                &pool,
                &payload.user_id,
                &payload.phone_number,
            )
            .await
            {
                Ok(_) => {
                    println!("Already created");
                    response.message = String::from("Already created");
                    (axum::http::StatusCode::NOT_MODIFIED, axum::Json(response))
                }
                Err(err) => {
                    match err {
                        sqlx::Error::RowNotFound => {
                            println!("Good to create");
                            // Put code here
                            let mut contact = schedtxt_models::contact::Contact {
                                firstname: payload.firstname,
                                lastname: payload.lastname,
                                phone_number: payload.phone_number,
                                nickname: payload.nickname,
                                user_id: Some(payload.user_id),
                                ..Default::default()
                            };
                            match contact_repo::insert(&pool, &contact).await {
                                Ok(id) => {
                                    contact.id = Some(id);
                                    response.message =
                                        String::from(super::super::response::SUCCESSFUL);
                                    response.data.push(contact);

                                    (axum::http::StatusCode::CREATED, axum::Json(response))
                                }
                                Err(err) => {
                                    eprintln!("Error: {err:?}");
                                    response.message = String::from("Contact not created");

                                    (
                                        axum::http::StatusCode::INTERNAL_SERVER_ERROR,
                                        axum::Json(response),
                                    )
                                }
                            }
                        }
                        _ => {
                            eprintln!("Error: {err:?}");
                            response.message = String::from("Something went wrong");
                            (
                                axum::http::StatusCode::INTERNAL_SERVER_ERROR,
                                axum::Json(response),
                            )
                        }
                    }
                }
            }
        } else {
            response.message = String::from("Request body is not valid");
            (axum::http::StatusCode::BAD_REQUEST, axum::Json(response))
        }
    }

    /// Endpoint to get Contacts
    #[utoipa::path(
        get,
        path = super::super::endpoints::GET_CONTACT,
        params(
            ("id" = uuid::Uuid, Path, description = "Id of Contact"),
            ("user_id" = uuid::Uuid, Path, description = "User Id associated with the Contact")
            ),
        responses(
            (status = 200, description = "Songs found", body = super::response::GetContactResponse),
            (status = 400, description = "Error getting songs", body = super::response::GetContactResponse)
        )
    )]
    pub async fn get_contacts(
        axum::Extension(pool): axum::Extension<sqlx::PgPool>,
        axum::extract::Query(params): axum::extract::Query<super::request::GetContactParams>,
    ) -> (
        axum::http::StatusCode,
        axum::Json<super::response::GetContactResponse>,
    ) {
        let mut response = super::response::GetContactResponse::default();

        let contacts = match params.id {
            Some(id) => match contact_repo::get(&pool, &id).await {
                Ok(contact) => {
                    vec![contact]
                }
                Err(err) => {
                    eprintln!("Error: {err:?}");
                    return (
                        axum::http::StatusCode::INTERNAL_SERVER_ERROR,
                        axum::Json(response),
                    );
                }
            },
            None => match params.user_id {
                Some(user_id) => match contact_repo::get_with_user_id(&pool, &user_id).await {
                    Ok(contacts) => contacts,
                    Err(err) => {
                        eprintln!("Error: {err:?}");
                        return (
                            axum::http::StatusCode::INTERNAL_SERVER_ERROR,
                            axum::Json(response),
                        );
                    }
                },
                None => {
                    response.message = String::from("Invalid parameter");
                    return (axum::http::StatusCode::BAD_REQUEST, axum::Json(response));
                }
            },
        };

        response.data = contacts;
        response.message = String::from(super::super::response::SUCCESSFUL);

        (axum::http::StatusCode::OK, axum::Json(response))
    }

    /// Endpoint to update Contact
    #[utoipa::path(
    patch,
    path = super::super::endpoints::UPDATE_CONTACT_NAME,
    request_body(
        content = super::request::UpdateContactNamesRequest,
        description = "Data needed to update Contact names",
        content_type = "application/json"
        ),
    responses(
        (status = 201, description = "Contact  created", body = super::response::UpdateContactNamesResponse),
        (status = 400, description = "Error", body = super::response::UpdateContactNamesResponse),
        (status = 500, description = "Error creating Contact", body = super::response::UpdateContactNamesResponse)
    )
)]
    pub async fn update_contact_names(
        axum::Extension(pool): axum::Extension<sqlx::PgPool>,
        axum::Json(payload): axum::Json<super::request::UpdateContactNamesRequest>,
    ) -> (
        axum::http::StatusCode,
        axum::Json<super::response::UpdateContactNamesResponse>,
    ) {
        let mut response = super::response::UpdateContactNamesResponse::default();

        if payload.is_valid() {
            match contact_repo::get(&pool, &payload.id).await {
                Ok(contact) => {
                    let old_firstname: Option<String> = contact.firstname.clone();
                    let old_lastname: Option<String> = contact.lastname.clone();
                    let old_nickname: Option<String> = contact.nickname.clone();
                    let new_firstname = payload.firstname;
                    let new_lastname = payload.lastname;
                    let new_nickname = payload.nickname;
                    match contact_repo::update_names(
                        &pool,
                        &payload.id,
                        &new_firstname,
                        &new_lastname,
                        &new_nickname,
                    )
                    .await
                    {
                        Ok(()) => {
                            response.message = String::from(super::super::response::SUCCESSFUL);
                            let data = super::response::UpdateContactNameChange {
                                old_firstname,
                                old_lastname,
                                old_nickname,
                                new_firstname,
                                new_lastname,
                                new_nickname,
                            };
                            response.data = vec![data];
                            (axum::http::StatusCode::OK, axum::Json(response))
                        }
                        Err(err) => {
                            eprintln!("Error: {err:?}");
                            response.message = String::from("Something went wrong");
                            (
                                axum::http::StatusCode::INTERNAL_SERVER_ERROR,
                                axum::Json(response),
                            )
                        }
                    }
                }
                Err(err) => {
                    eprintln!("Error: {err:?}");
                    response.message = String::from("Something went wrong");
                    (
                        axum::http::StatusCode::INTERNAL_SERVER_ERROR,
                        axum::Json(response),
                    )
                }
            }
        } else {
            response.message = String::from("Request body is not valid");
            (axum::http::StatusCode::BAD_REQUEST, axum::Json(response))
        }
    }
}