use std::collections::{HashMap, HashSet};

use serde_json::Value;

use crate::{
  cfs::session::http_client::v3::types::CfsSessionGetResponse,
  error::Error,
  hsm::{self, group::types::Group},
  node::utils::validate_xnames_format_and_membership_agaisnt_single_hsm,
};

use super::{
  http_client::{self, delete_member, post_member},
  types::Member,
};

pub async fn get_group_available(
  shasta_auth_token: &str,
  shasta_base_url: &str,
  shasta_root_cert: &[u8],
) -> Result<Vec<Group>, Error> {
  const ADMIN_ROLE_NAME: &str = "pa_admin";

  let mut group_vec = hsm::group::http_client::get_all(
    shasta_auth_token,
    shasta_base_url,
    shasta_root_cert,
  )
  .await
  .map_err(|e| Error::Message(e.to_string()))?;

  // Get HSM groups/Keycloak roles the user has access to from JWT token
  let realm_access_role_vec =
    crate::common::jwt_ops::get_roles(shasta_auth_token)?;

  if !realm_access_role_vec.contains(&ADMIN_ROLE_NAME.to_string()) {
    let available_groups_name = get_group_name_available(
      shasta_auth_token,
      shasta_base_url,
      shasta_root_cert,
    )
    .await?;

    group_vec.retain(|group| available_groups_name.contains(&group.label));

    // Remove site wide HSM groups like 'alps', 'prealps', 'alpsm', etc because they pollute
    // the roles to check if a user has access to individual compute nodes
    //FIXME: Get rid of this by making sure CSM admins don't create HSM groups for system
    //wide operations instead of using roles
    let realm_access_role_filtered_vec =
      hsm::group::hacks::filter_system_hsm_groups(group_vec.clone());

    Ok(realm_access_role_filtered_vec)
  } else {
    Ok(group_vec)
  }
}

pub async fn get_group_name_available(
  shasta_auth_token: &str,
  shasta_base_url: &str,
  shasta_root_cert: &[u8],
) -> Result<Vec<String>, Error> {
  log::debug!("Get HSM names available from JWT or all");

  const ADMIN_ROLE_NAME: &str = "pa_admin";

  // Get HSM groups/Keycloak roles the user has access to from JWT token
  let realm_access_role_vec =
    crate::common::jwt_ops::get_roles(shasta_auth_token)?;

  if !realm_access_role_vec.contains(&ADMIN_ROLE_NAME.to_string()) {
    log::debug!("User is not admin, getting HSM groups available from JWT");

    // remove keycloak roles not related with HSM groups
    /* realm_access_role_vec
    .retain(|role| !role.eq("offline_access") && !role.eq("uma_authorization")); */
    let realm_access_role_vec = hsm::group::hacks::filter_keycloak_roles(
      realm_access_role_vec
        .iter()
        .map(String::as_str)
        .collect::<Vec<&str>>()
        .as_slice(),
    );

    // Remove site wide HSM groups like 'alps', 'prealps', 'alpsm', etc because they pollute
    // the roles to check if a user has access to individual compute nodes
    //FIXME: Get rid of this by making sure CSM admins don't create HSM groups for system
    //wide operations instead of using roles
    let mut realm_access_role_filtered_vec =
      hsm::group::hacks::filter_system_hsm_group_names(
        realm_access_role_vec.clone(),
      );

    realm_access_role_filtered_vec.sort();

    Ok(realm_access_role_vec)
  } else {
    log::debug!("User is admin, getting all HSM groups in the system");
    let all_hsm_groups_rslt = hsm::group::http_client::get_all(
      shasta_auth_token,
      shasta_base_url,
      shasta_root_cert,
    )
    .await;

    let mut all_hsm_groups = all_hsm_groups_rslt?
      .iter()
      .map(|hsm_value| hsm_value.label.clone())
      .collect::<Vec<String>>();

    all_hsm_groups.sort();

    Ok(all_hsm_groups)
  }
}

/// Add a list of xnames to target HSM group
/// Returns the new list of nodes in target HSM group
pub async fn add_member(
  auth_token: &str,
  base_url: &str,
  root_cert: &[u8],
  group_label: &str,
  new_member: &str,
) -> Result<Vec<String>, Error> {
  // Get HSM group from CSM
  let group_vec = hsm::group::http_client::get(
    auth_token,
    base_url,
    root_cert,
    Some(&[&group_label]),
    None,
  )
  .await?;

  // Check if HSM group found
  if let Some(group) = group_vec.first().cloned().as_mut() {
    // Update HSM group with new memebers
    // Create Member struct
    let new_member = new_member.to_string();
    let member = crate::hsm::group::types::Member {
      id: Some(new_member.clone()),
    };

    // Update HSM group in CSM
    let _ = crate::hsm::group::http_client::post_member(
      auth_token,
      base_url,
      root_cert,
      group_label,
      member,
    )
    .await?;

    // Generate list of updated group members
    group.get_members().push(new_member);

    Ok(group.get_members())
  } else {
    // HSM group not found, throw an error
    Err(Error::Message(format!(
      "No HSM group '{}' found",
      group_label
    )))
  }

  /* // get list of target HSM group members
  let mut target_hsm_group_member_vec: Vec<String> =
      hsm::group::http_client::get_members(base_url, auth_token, root_cert, group_label)
          .await
          .map(|member| member.ids.unwrap())?;

  // merge HSM group list with the list of xnames provided by the user
  target_hsm_group_member_vec.extend(members.iter().map(|xname| xname.to_string()));

  target_hsm_group_member_vec.sort();
  target_hsm_group_member_vec.dedup();

  // *********************************************************************************************************
  // UPDATE HSM GROUP MEMBERS IN CSM
  if dryrun {
      println!(
          "Add following nodes to HSM group {}:\n{:?}",
          group_label, members
      );

      println!("dry-run enabled, changes not persisted.");
  } else {
      for xname in members {
          let member = Member {
              ids: Some(vec![xname.to_string()]),
          };
          let _ = post_members(auth_token, base_url, root_cert, group_label, member).await;
      }
  }

  Ok(target_hsm_group_member_vec) */
}

/// Removes list of xnames from  HSM group
pub async fn remove_hsm_members(
  shasta_token: &str,
  shasta_base_url: &str,
  shasta_root_cert: &[u8],
  target_hsm_group_name: &str,
  new_target_hsm_members: Vec<&str>,
  dryrun: bool,
) -> Result<Vec<String>, Error> {
  // Check nodes are valid xnames and they belong to parent HSM group
  if !validate_xnames_format_and_membership_agaisnt_single_hsm(
    shasta_token,
    shasta_base_url,
    shasta_root_cert,
    new_target_hsm_members.as_slice(),
    Some(&target_hsm_group_name.to_string()),
  )
  .await
  {
    let error_msg =
      format!("Nodes '{}' not valid", new_target_hsm_members.join(", "));
    return Err(Error::Message(error_msg));
  }

  // get list of parent HSM group members
  let mut target_hsm_group_member_vec: Vec<String> =
    get_member_vec_from_hsm_group_name(
      shasta_token,
      shasta_base_url,
      shasta_root_cert,
      target_hsm_group_name,
    )
    .await;

  target_hsm_group_member_vec.retain(|parent_member| {
    !new_target_hsm_members.contains(&parent_member.as_str())
  });

  target_hsm_group_member_vec.sort();
  target_hsm_group_member_vec.dedup();

  // *********************************************************************************************************
  // UPDATE HSM GROUP MEMBERS IN CSM
  if dryrun {
    println!(
      "Remove following nodes from HSM group {}:\n{:?}",
      target_hsm_group_name, new_target_hsm_members
    );

    println!("dry-run enabled, changes not persisted.");
  } else {
    for xname in new_target_hsm_members {
      let _ = delete_member(
        shasta_token,
        shasta_base_url,
        shasta_root_cert,
        target_hsm_group_name,
        xname,
      )
      .await;
    }
  }

  Ok(target_hsm_group_member_vec)
}

/// Moves list of xnames from parent to target HSM group
pub async fn migrate_hsm_members(
  shasta_token: &str,
  shasta_base_url: &str,
  shasta_root_cert: &[u8],
  target_hsm_group_name: &str,
  parent_hsm_group_name: &str,
  new_target_hsm_members: &[&str],
  nodryrun: bool,
) -> Result<(Vec<String>, Vec<String>), Error> {
  // Check nodes are valid xnames and they belong to parent HSM group
  if !validate_xnames_format_and_membership_agaisnt_single_hsm(
    shasta_token,
    shasta_base_url,
    shasta_root_cert,
    new_target_hsm_members,
    Some(&parent_hsm_group_name.to_string()),
  )
  .await
  {
    let error_msg =
      format!("Nodes '{}' not valid", new_target_hsm_members.join(", "));
    return Err(Error::Message(error_msg));
  }

  // get list of target HSM group members
  let mut target_hsm_group_member_vec: Vec<String> =
    get_member_vec_from_hsm_group_name(
      shasta_token,
      shasta_base_url,
      shasta_root_cert,
      target_hsm_group_name,
    )
    .await;

  // merge HSM group list with the list of xnames provided by the user
  target_hsm_group_member_vec
    .extend(new_target_hsm_members.iter().map(|xname| xname.to_string()));

  target_hsm_group_member_vec.sort();
  target_hsm_group_member_vec.dedup();

  // get list of parent HSM group members
  let mut parent_hsm_group_member_vec: Vec<String> =
    get_member_vec_from_hsm_group_name(
      shasta_token,
      shasta_base_url,
      shasta_root_cert,
      parent_hsm_group_name,
    )
    .await;

  parent_hsm_group_member_vec.retain(|parent_member| {
    !target_hsm_group_member_vec.contains(parent_member)
  });

  parent_hsm_group_member_vec.sort();
  parent_hsm_group_member_vec.dedup();

  // *********************************************************************************************************
  // UPDATE HSM GROUP MEMBERS IN CSM
  if !nodryrun {
    let target_hsm_group = serde_json::json!({
        "label": target_hsm_group_name,
        "decription": "",
        "members": target_hsm_group_member_vec,
        "tags": []
    });

    println!(
      "Target HSM group:\n{}",
      serde_json::to_string_pretty(&target_hsm_group).unwrap()
    );

    let parent_hsm_group = serde_json::json!({
        "label": parent_hsm_group_name,
        "decription": "",
        "members": parent_hsm_group_member_vec,
        "tags": []
    });

    println!(
      "Parent HSM group:\n{}",
      serde_json::to_string_pretty(&parent_hsm_group).unwrap()
    );

    println!("dry-run enabled, changes not persisted.");
  } else {
    for xname in new_target_hsm_members {
      let member = Member {
        id: Some(xname.to_string()),
      };

      let _ = post_member(
        shasta_token,
        shasta_base_url,
        shasta_root_cert,
        target_hsm_group_name,
        member,
      )
      .await;

      let _ = delete_member(
        shasta_token,
        shasta_base_url,
        shasta_root_cert,
        parent_hsm_group_name,
        xname,
      )
      .await;
    }
  }

  Ok((target_hsm_group_member_vec, parent_hsm_group_member_vec))
}

/// Receives 2 lists of xnames old xnames to remove from parent HSM group and new xhanges to add to target HSM group, and does just that
pub async fn update_hsm_group_members(
  shasta_token: &str,
  shasta_base_url: &str,
  shasta_root_cert: &[u8],
  hsm_group_name: &str,
  old_target_hsm_group_members: &[&str],
  new_target_hsm_group_members: &[&str],
) -> Result<(), Error> {
  // Delete members
  for old_member in old_target_hsm_group_members {
    if !new_target_hsm_group_members.contains(old_member) {
      let _ = delete_member(
        shasta_token,
        shasta_base_url,
        shasta_root_cert,
        hsm_group_name,
        old_member,
      )
      .await;
    }
  }

  // Add members
  for new_member in new_target_hsm_group_members {
    if !old_target_hsm_group_members.contains(new_member) {
      let member = Member {
        id: Some(new_member.to_string()),
      };

      let _ = post_member(
        shasta_token,
        shasta_base_url,
        shasta_root_cert,
        hsm_group_name,
        member,
      )
      .await;
    }
  }

  Ok(())
}

// Returns a HashMap with keys being the xnames and values the list of group names each xname
// belongs to
pub async fn get_xname_map_and_filter_by_xname_vec(
  shasta_token: &str,
  shasta_base_url: &str,
  shasta_root_cert: &[u8],
  xname_vec: Vec<&str>,
) -> Result<HashMap<String, Vec<String>>, Error> {
  let hsm_group_vec =
    http_client::get_all(shasta_token, shasta_base_url, shasta_root_cert)
      .await?;

  let mut xname_map: HashMap<String, Vec<String>> = HashMap::new();

  for hsm_group in hsm_group_vec {
    /* let label = hsm_group.label;
    let members = hsm_group.members.unwrap().ids.unwrap(); */
    for xname in hsm_group.get_members() {
      if xname_vec.contains(&xname.as_str()) {
        xname_map
          .entry(xname)
          .and_modify(|group_vec| group_vec.push(hsm_group.label.clone()))
          .or_insert(vec![hsm_group.label.clone()]);
      }
    }
  }

  Ok(xname_map)
}

// Returns a HashMap with keys being the hsm names/labels the user has access a curated list of xnames
// for each hsm name as values
pub async fn get_hsm_map_and_filter_by_hsm_name_vec(
  shasta_token: &str,
  shasta_base_url: &str,
  shasta_root_cert: &[u8],
  hsm_name_vec: &[&str],
) -> Result<HashMap<String, Vec<String>>, Error> {
  let hsm_group_vec =
    http_client::get_all(shasta_token, shasta_base_url, shasta_root_cert)
      .await?;

  Ok(filter_by_hsm_group_name_and_convert_to_map(
    hsm_name_vec,
    &hsm_group_vec.iter().collect::<Vec<&Group>>(),
  ))
}

// Returns a HashMap with keys being the hsm names/labels the user has access a curated list of xnames
// for each hsm name as values
pub async fn get_hsm_group_map_and_filter_by_hsm_group_member_vec(
  shasta_token: &str,
  shasta_base_url: &str,
  shasta_root_cert: &[u8],
  member_vec: &[&str],
) -> Result<HashMap<String, Vec<String>>, Error> {
  let hsm_group_vec =
    http_client::get_all(shasta_token, shasta_base_url, shasta_root_cert)
      .await?;

  Ok(filter_by_hsm_group_members_and_convert_to_map(
    member_vec,
    hsm_group_vec,
  ))
}

/// Given a list of HsmGroup struct and a list of Hsm group names, it will filter out those
/// not in the Hsm group names and convert from HsmGroup struct to HashMap
pub fn filter_by_hsm_group_name_and_convert_to_map(
  hsm_name_vec: &[&str],
  hsm_group_vec: &[&Group],
) -> HashMap<String, Vec<String>> {
  let mut hsm_group_map: HashMap<String, Vec<String>> = HashMap::new();

  for hsm_group in hsm_group_vec {
    if hsm_name_vec.contains(&hsm_group.label.as_str()) {
      hsm_group_map.entry(hsm_group.label.clone()).or_insert(
        hsm_group
          .members
          .clone()
          .and_then(|members| members.ids)
          .unwrap(),
      );
    }
  }

  hsm_group_map
}

/// Given a list of HsmGroup struct and a list of Hsm group members, it will filter out those
/// not in the Hsm group names and convert from HsmGroup struct to HashMap
pub fn filter_by_hsm_group_members_and_convert_to_map(
  member_vec: &[&str],
  hsm_group_vec: Vec<Group>,
) -> HashMap<String, Vec<String>> {
  let mut hsm_group_map: HashMap<String, Vec<String>> = HashMap::new();

  for hsm_group in hsm_group_vec {
    if hsm_group
      .get_members()
      .iter()
      .any(|member| member_vec.contains(&member.as_str()))
    {
      hsm_group_map
        .entry(hsm_group.label)
        .or_insert(hsm_group.members.and_then(|members| members.ids).unwrap());
    }
  }

  hsm_group_map
}

pub fn get_member_vec_from_hsm_group_value(hsm_group: &Value) -> Vec<String> {
  // Take all nodes for all hsm_groups found and put them in a Vec
  hsm_group["members"]["ids"]
    .as_array()
    .unwrap_or(&Vec::new())
    .iter()
    .map(|xname| xname.as_str().unwrap().to_string())
    .collect()
}

pub fn get_member_vec_from_hsm_group(hsm_group: &Group) -> Vec<String> {
  // Take all nodes for all hsm_groups found and put them in a Vec
  hsm_group.get_members()
}

/// Get the list of xnames which are members of a list of HSM groups.
/// eg:
/// given following HSM groups:
/// tenant_a: [x1003c1s7b0n0, x1003c1s7b0n1]
/// tenant_b: [x1003c1s7b1n0]
/// Then calling this function with hsm_name_vec: &["tenant_a", "tenant_b"] should return [x1003c1s7b0n0, x1003c1s7b0n1, x1003c1s7b1n0]
pub async fn get_member_vec_from_hsm_name_vec(
  shasta_token: &str,
  shasta_base_url: &str,
  shasta_root_cert: &[u8],
  hsm_name_vec: &[&str],
) -> Result<Vec<String>, Error> {
  log::info!("Get xnames from HSM groups");
  log::debug!("Get xnames from HSM groups: {:?}", hsm_name_vec);

  let hsm_group_vec = hsm::group::http_client::get(
    shasta_token,
    shasta_base_url,
    shasta_root_cert,
    Some(
      hsm_name_vec
        .iter()
        .map(|c| &**c)
        .collect::<Vec<&str>>()
        .as_slice(),
    ),
    None,
  )
  .await?;

  let mut hsm_group_member_vec: Vec<String> = Vec::new();

  for hsm_group in hsm_group_vec {
    hsm_group_member_vec.append(&mut hsm_group.get_members());
  }

  Ok(hsm_group_member_vec)

  /* let mut hsm_group_member_vec: Vec<String> = Vec::new();

  let start = Instant::now();

  let pipe_size = 10;

  let mut tasks = tokio::task::JoinSet::new();

  let sem = Arc::new(Semaphore::new(pipe_size)); // CSM 1.3.1 higher number of concurrent tasks won't
                                                 //
  for hsm_name in hsm_name_vec {
      let shasta_token_string = shasta_token.to_string();
      let shasta_base_url_string = shasta_base_url.to_string();
      let shasta_root_cert_vec = shasta_root_cert.to_vec();

      let permit = Arc::clone(&sem).acquire_owned().await;

      tasks.spawn(async move {
          let _permit = permit; // Wait semaphore to allow new tasks https://github.com/tokio-rs/tokio/discussions/2648#discussioncomment-34885

          hsm::group::http_client::get(
              &shasta_token_string,
              &shasta_base_url_string,
              &shasta_root_cert_vec,
              Some(&[&hsm_name]),
              None,
          )
          .await
      });
  }

  while let Some(message) = tasks.join_next().await {
      match message {
          Ok(Ok(hsm_group_vec)) => {
              let mut hsm_grop_members = hsm_group_vec.first().unwrap().get_members();

              hsm_group_member_vec.append(&mut hsm_grop_members);
          }
          Ok(Err(error)) => log::warn!("{error}"),
          Err(error) => {
              return Err(Error::Message(error.to_string()));
          }
      }
  }

  let duration = start.elapsed();
  log::info!("Time elapsed to get HSM members is: {:?}", duration);

  Ok(hsm_group_member_vec) */
}

/* /// Get the list of xnames which are members of a list of HSM groups.
/// eg:
/// given following HSM groups:
/// tenant_a: [x1003c1s7b0n0, x1003c1s7b0n1]
/// tenant_b: [x1003c1s7b1n0]
/// Then calling this function with hsm_name_vec: &["tenant_a", "tenant_b"] should return [x1003c1s7b0n0, x1003c1s7b0n1, x1003c1s7b1n0]
pub async fn get_member_vec_from_hsm_name_vec(
    shasta_token: &str,
    shasta_base_url: &str,
    shasta_root_cert: &[u8],
    hsm_name_vec: Vec<String>,
) -> Vec<String> {
    log::info!("Get xnames for HSM groups: {:?}", hsm_name_vec);

    let start = Instant::now();

    /* let mut hsm_group_value_vec =
        http_client::get_all(shasta_token, shasta_base_url, shasta_root_cert)
            .await
            .unwrap();

    hsm_group_value_vec.retain(|hsm_value| hsm_name_vec.contains(&hsm_value.label));

    Vec::from_iter(
        get_member_vec_from_hsm_group_vec(&hsm_group_value_vec)
            .iter()
            .cloned(),
    ) */

    let mut hsm_group_member_vec: Vec<String> = Vec::new();

    let pipe_size = 10;

    let mut tasks = tokio::task::JoinSet::new();

    let sem = Arc::new(Semaphore::new(pipe_size)); // CSM 1.3.1 higher number of concurrent tasks won't
                                                   //
    for hsm_name in hsm_name_vec {
        let shasta_token_string = shasta_token.to_string();
        let shasta_base_url_string = shasta_base_url.to_string();
        let shasta_root_cert_vec = shasta_root_cert.to_vec();

        let permit = Arc::clone(&sem).acquire_owned().await;

        tasks.spawn(async move {
            let _permit = permit; // Wait semaphore to allow new tasks https://github.com/tokio-rs/tokio/discussions/2648#discussioncomment-34885

            get(
                &shasta_token_string,
                &shasta_base_url_string,
                &shasta_root_cert_vec,
                Some(&hsm_name),
            )
            .await
        });
    }

    while let Some(message) = tasks.join_next().await {
        match message {
            Ok(Ok(hsm_group_vec)) => {
                let mut hsm_grop_members = hsm_group_vec.first().unwrap().get_members();

                hsm_group_member_vec.append(&mut hsm_grop_members);
            }
            Ok(Err(error)) => log::warn!("{error}"),
            Err(error) => {
                log::warn!("{error}");
            }
        }
        /* if let Ok(hsm_group_vec) = message {
            let mut hsm_grop_members = hsm_group_vec
                .first()
                .unwrap().get_members();

            hsm_group_member_vec.append(&mut hsm_grop_members);
        } */
    }

    let duration = start.elapsed();
    log::info!("Time elapsed to get HSM members is: {:?}", duration);

    hsm_group_member_vec
} */

pub fn get_member_vec_from_hsm_group_value_vec(
  hsm_groups: &[Value],
) -> HashSet<String> {
  hsm_groups
    .iter()
    .flat_map(get_member_vec_from_hsm_group_value)
    .collect()
}

pub fn get_member_vec_from_hsm_group_vec(
  hsm_groups: &[Group],
) -> HashSet<String> {
  hsm_groups
    .iter()
    .flat_map(get_member_vec_from_hsm_group)
    .collect()
}

/// Returns a Map with nodes and the list of hsm groups that node belongs to.
/// eg "x1500b5c1n3 --> [ psi-dev, psi-dev_cn ]"
pub fn group_members_by_hsm_group_from_hsm_groups_value(
  hsm_groups: &Vec<Value>,
) -> HashMap<String, Vec<String>> {
  let mut member_hsm_map: HashMap<String, Vec<String>> = HashMap::new();
  for hsm_group_value in hsm_groups {
    let hsm_group_name = hsm_group_value["label"].as_str().unwrap().to_string();
    for member in get_member_vec_from_hsm_group_value(hsm_group_value) {
      member_hsm_map
        .entry(member)
        .and_modify(|hsm_groups| hsm_groups.push(hsm_group_name.clone()))
        .or_insert_with(|| vec![hsm_group_name.clone()]);
    }
  }

  member_hsm_map
}

pub async fn get_member_vec_from_hsm_group_name_opt(
  shasta_token: &str,
  shasta_base_url: &str,
  shasta_root_cert: &[u8],
  hsm_group: &str,
) -> Option<Vec<String>> {
  // Take all nodes for all hsm_groups found and put them in a Vec
  http_client::get(
    shasta_token,
    shasta_base_url,
    shasta_root_cert,
    Some(&[hsm_group]),
    None,
  )
  .await
  .unwrap()
  .first()
  .unwrap()
  .get_members_opt()
}

pub async fn get_member_vec_from_hsm_group_name(
  shasta_token: &str,
  shasta_base_url: &str,
  shasta_root_cert: &[u8],
  hsm_group: &str,
) -> Vec<String> {
  // Take all nodes for all hsm_groups found and put them in a Vec
  http_client::get(
    shasta_token,
    shasta_base_url,
    shasta_root_cert,
    Some(&[hsm_group]),
    None,
  )
  .await
  .unwrap()
  .first()
  .unwrap()
  .get_members()
}

pub async fn get_hsm_group_from_xname(
  shasta_token: &str,
  shasta_base_url: &str,
  shasta_root_cert: &[u8],
  xname: &String,
) -> Option<Vec<String>> {
  let mut hsm_group_vec =
    http_client::get_all(shasta_token, shasta_base_url, shasta_root_cert)
      .await
      .unwrap();

  hsm_group_vec.retain(|hsm_group| {
    hsm_group
      .get_members()
      .iter()
      .any(|hsm_group_member| hsm_group_member == xname)
  });

  if hsm_group_vec.is_empty() {
    None
  } else {
    Some(
      hsm_group_vec
        .iter()
        .flat_map(|hsm_group| hsm_group.get_members())
        .collect(),
    )
  }
}

/// Returns the list of HSM group names related to a list of nodes
// FIXME: Make this function return a Result<Vec<String>, Error> instead of Vec<String>
pub async fn get_hsm_group_name_vec_from_xname_vec(
  shasta_token: &str,
  shasta_base_url: &str,
  shasta_root_cert: &[u8],
  xname_vec: &[&str],
) -> Vec<String> {
  let mut hsm_group_vec =
    http_client::get_all(shasta_token, shasta_base_url, shasta_root_cert)
      .await
      .unwrap();

  hsm_group_vec.retain(|hsm_group_value| {
    hsm_group_value
      .get_members()
      .iter()
      .any(|hsm_group_member| xname_vec.contains(&hsm_group_member.as_str()))
  });

  hsm_group_vec
    .iter()
    .map(|hsm_group_value| hsm_group_value.label.clone())
    .collect::<Vec<String>>()
}

/// Returns the list of HSM group related to a list of nodes
pub async fn get_hsm_group_vec_from_xname_vec(
  shasta_token: &str,
  shasta_base_url: &str,
  shasta_root_cert: &[u8],
  xname_vec: &[&str],
) -> Vec<Group> {
  let mut hsm_group_vec =
    http_client::get_all(shasta_token, shasta_base_url, shasta_root_cert)
      .await
      .unwrap();

  hsm_group_vec.retain(|hsm_group_value| {
    hsm_group_value
      .get_members()
      .iter()
      .any(|hsm_group_member| xname_vec.contains(&hsm_group_member.as_str()))
  });

  hsm_group_vec
}

pub fn get_hsm_group_from_cfs_session_related_to_cfs_configuration(
  cfs_session_value_vec: &[Value],
  cfs_configuration: &str,
) -> Vec<String> {
  let mut hsm_group_from_cfs_session_vec = cfs_session_value_vec
    .iter()
    .filter(|cfs_session| {
      cfs_session
        .pointer("/configuration/name")
        .unwrap()
        .eq(cfs_configuration)
    })
    .flat_map(|cfs_session| {
      cfs_session
        .pointer("/target/groups")
        .unwrap()
        .as_array()
        .unwrap()
        .iter()
        .map(|group| group["name"].as_str().unwrap().to_string())
    })
    .collect::<Vec<String>>();

  hsm_group_from_cfs_session_vec.sort();
  hsm_group_from_cfs_session_vec.dedup();

  hsm_group_from_cfs_session_vec
}

pub fn get_hsm_group_from_bos_sessiontimplate_related_to_cfs_configuration(
  bos_sessiontemplate_value_vec: &[Value],
  cfs_configuration: &str,
) -> Vec<String> {
  let hsm_group_from_bos_sessiontemplate_computer_related_to_cfs_configuration =
    bos_sessiontemplate_value_vec
      .iter()
      .filter(|bos_sessiontemplate| {
        bos_sessiontemplate
          .pointer("/cfs/configuration")
          .unwrap()
          .eq(cfs_configuration)
      })
      .flat_map(|bos_sessiontemplate| {
        bos_sessiontemplate
          .pointer("/boot_sets/compute/node_groups")
          .unwrap()
          .as_array()
          .unwrap()
          .iter()
          .map(|node_group| node_group.as_str().unwrap().to_string())
      });

  let hsm_group_from_bos_sessiontemplate_uan_related_to_cfs_configuration =
    bos_sessiontemplate_value_vec
      .iter()
      .filter(|bos_sessiontemplate| {
        bos_sessiontemplate
          .pointer("/cfs/configuration")
          .unwrap()
          .eq(cfs_configuration)
          && bos_sessiontemplate
            .pointer("/boot_sets/uan/node_groups")
            .is_some()
      })
      .flat_map(|bos_sessiontemplate| {
        bos_sessiontemplate
          .pointer("/boot_sets/uan/node_groups")
          .unwrap()
          .as_array()
          .unwrap()
          .iter()
          .map(|node_group| node_group.as_str().unwrap().to_string())
      });

  let mut hsm_group_from_bos_sessiontemplate_vec =
    hsm_group_from_bos_sessiontemplate_computer_related_to_cfs_configuration
      .chain(
        hsm_group_from_bos_sessiontemplate_uan_related_to_cfs_configuration,
      )
      .collect::<Vec<String>>();

  hsm_group_from_bos_sessiontemplate_vec.sort();
  hsm_group_from_bos_sessiontemplate_vec.dedup();

  hsm_group_from_bos_sessiontemplate_vec
}

/// This method will verify the HSM group in user config file and the HSM group the user is
/// trying to access and it will verify if this access is granted.
/// config_hsm_group is the HSM group name in manta config file (~/.config/manta/config) and
/// hsm_group_accessed is the hsm group the user is trying to access (either trying to access a
/// CFS session or in a SAT file.)
pub async fn validate_config_hsm_group_and_hsm_group_accessed(
  shasta_token: &str,
  shasta_base_url: &str,
  shasta_root_cert: &[u8],
  hsm_group: Option<&String>,
  session_name: Option<&String>,
  cfs_sessions: &[CfsSessionGetResponse],
) -> Result<(), Error> {
  if let Some(hsm_group_name) = hsm_group {
    let hsm_group_details = crate::hsm::group::http_client::get_hsm_group_vec(
      shasta_token,
      shasta_base_url,
      shasta_root_cert,
      hsm_group,
    )
    .await
    .unwrap();
    let hsm_group_members =
      get_member_vec_from_hsm_group_vec(&hsm_group_details);
    let cfs_session_hsm_groups: Vec<String> = cfs_sessions
      .last()
      .unwrap()
      .target
      .as_ref()
      .unwrap()
      .groups
      .as_ref()
      .unwrap_or(&Vec::new())
      .iter()
      .map(|group| group.name.clone())
      .collect();
    let cfs_session_members: Vec<String> = cfs_sessions
      .last()
      .unwrap()
      .ansible
      .as_ref()
      .unwrap()
      .limit
      .clone()
      .unwrap_or_default()
      .split(',')
      .map(|xname| xname.to_string())
      .collect();
    if !cfs_session_hsm_groups.contains(hsm_group_name)
      && !cfs_session_members.iter().all(|cfs_session_member| {
        hsm_group_members.contains(cfs_session_member)
      })
    {
      return Err(Error::Message(format!(
        "CFS session {} does not apply to HSM group {}",
        session_name.unwrap(),
        hsm_group_name
      )));
    }
  }

  Ok(())
}
