use clap::Args;
use colored::*;
use serde::{Deserialize, Serialize};

use crate::types::{Status, Train};

#[derive(Serialize)]
#[serde(rename_all = "camelCase")]
pub struct Travel {
  token: String,
  #[serde(flatten)]
  action: Action
}

#[derive(Serialize, Debug)]
#[serde(rename_all = "camelCase")]
#[serde(tag = "action")]
pub enum Action {
  #[serde(rename = "checkin")]
  #[serde(rename_all = "camelCase")]
  CheckIn {
    token: String,
    train: TrainRef,
    from_station: String,
    #[serde(skip_serializing_if = "Option::is_none")]
    to_station: Option<String>,
    #[serde(skip_serializing_if = "Option::is_none")]
    comment: Option<String>
  },
  #[serde(rename = "checkout")]
  #[serde(rename_all = "camelCase")]
  CheckOut {
    to_station: String,
    force: bool,
    #[serde(skip_serializing_if = "Option::is_none")]
    comment: Option<String>,
    token: String
  },
  Undo {
    token: String
  }
}

#[derive(Args, Serialize, Debug)]
pub struct TrainRef {
  #[clap(name = "TRAIN TYPE")]
  #[serde(rename = "type")]
  pub _type: String,
  #[clap(name = "NUMBER")]
  pub no: String
}

impl std::fmt::Display for TrainRef {
  fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
    write!(f, "{} {}", self._type, self.no)
  }
}

impl std::convert::From<Train> for TrainRef {
  fn from(from: Train) -> Self {
    TrainRef {
      _type: from._type,
      no: from.no
    }
  }
}

#[derive(Deserialize, Debug)]
pub struct Response {
  success: Option<bool>,
  deprecated: bool,
  status: Status,
  error: Option<String>
}

impl std::fmt::Display for Response {
  fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
    match &self.error {
      Some(msg) => write!(f, "{}", msg.red()),
      None => write!(f, "{}\n\n{}", "Success!".green(), self.status)
    }
  }
}