use crate::app::radarr::ActiveRadarrBlock;
use crate::app::App;
use crate::event::Key;
use crate::handlers::KeyEventHandler;
use crate::models::Scrollable;

pub(super) struct CollectionDetailsHandler<'a> {
  key: &'a Key,
  app: &'a mut App,
  active_radarr_block: &'a ActiveRadarrBlock,
}

impl<'a> KeyEventHandler<'a, ActiveRadarrBlock> for CollectionDetailsHandler<'a> {
  fn with(
    key: &'a Key,
    app: &'a mut App,
    active_block: &'a ActiveRadarrBlock,
  ) -> CollectionDetailsHandler<'a> {
    CollectionDetailsHandler {
      key,
      app,
      active_radarr_block: active_block,
    }
  }

  fn get_key(&self) -> &Key {
    self.key
  }

  fn handle_scroll_up(&mut self) {
    if ActiveRadarrBlock::CollectionDetails == *self.active_radarr_block {
      self.app.data.radarr_data.collection_movies.scroll_up()
    }
  }

  fn handle_scroll_down(&mut self) {
    if ActiveRadarrBlock::CollectionDetails == *self.active_radarr_block {
      self.app.data.radarr_data.collection_movies.scroll_down()
    }
  }

  fn handle_home(&mut self) {
    if ActiveRadarrBlock::CollectionDetails == *self.active_radarr_block {
      self.app.data.radarr_data.collection_movies.scroll_to_top();
    }
  }

  fn handle_end(&mut self) {
    if ActiveRadarrBlock::CollectionDetails == *self.active_radarr_block {
      self
        .app
        .data
        .radarr_data
        .collection_movies
        .scroll_to_bottom();
    }
  }

  fn handle_delete(&mut self) {}

  fn handle_left_right_action(&mut self) {}

  fn handle_submit(&mut self) {
    if ActiveRadarrBlock::CollectionDetails == *self.active_radarr_block {
      self
        .app
        .push_navigation_stack(ActiveRadarrBlock::ViewMovieOverview.into())
    }
  }

  fn handle_esc(&mut self) {
    match self.active_radarr_block {
      ActiveRadarrBlock::CollectionDetails => {
        self.app.pop_navigation_stack();
        self.app.data.radarr_data.reset_movie_collection_table();
      }
      ActiveRadarrBlock::ViewMovieOverview => self.app.pop_navigation_stack(),
      _ => (),
    }
  }

  fn handle_char_key_event(&mut self) {}
}

#[cfg(test)]
mod tests {
  use pretty_assertions::assert_str_eq;

  use crate::app::key_binding::DEFAULT_KEYBINDINGS;
  use crate::app::radarr::ActiveRadarrBlock;
  use crate::app::App;
  use crate::event::Key;
  use crate::handlers::radarr_handlers::collection_details_handler::CollectionDetailsHandler;
  use crate::handlers::KeyEventHandler;
  use crate::models::radarr_models::CollectionMovie;

  mod test_handle_scroll_up_and_down {
    use rstest::rstest;

    use crate::{simple_stateful_iterable_vec, test_iterable_scroll};

    use super::*;

    test_iterable_scroll!(
      test_collection_details_scroll,
      CollectionDetailsHandler,
      collection_movies,
      CollectionMovie,
      ActiveRadarrBlock::CollectionDetails,
      title
    );
  }

  mod test_handle_home_end {
    use crate::{extended_stateful_iterable_vec, test_iterable_home_and_end};

    use super::*;

    test_iterable_home_and_end!(
      test_collection_details_home_end,
      CollectionDetailsHandler,
      collection_movies,
      CollectionMovie,
      ActiveRadarrBlock::CollectionDetails,
      title
    );
  }

  mod test_handle_submit {
    use pretty_assertions::assert_eq;

    use super::*;

    const SUBMIT_KEY: Key = DEFAULT_KEYBINDINGS.submit.key;

    #[test]
    fn test_collection_details_submit() {
      let mut app = App::default();
      app.push_navigation_stack(ActiveRadarrBlock::CollectionDetails.into());

      CollectionDetailsHandler::with(&SUBMIT_KEY, &mut app, &ActiveRadarrBlock::CollectionDetails)
        .handle();

      assert_eq!(
        app.get_current_route(),
        &ActiveRadarrBlock::ViewMovieOverview.into()
      );
    }
  }

  mod test_handle_esc {
    use pretty_assertions::assert_eq;

    use super::*;

    const ESC_KEY: Key = DEFAULT_KEYBINDINGS.esc.key;

    #[test]
    fn test_esc_collection_details() {
      let mut app = App::default();
      app.push_navigation_stack(ActiveRadarrBlock::Collections.into());
      app.push_navigation_stack(ActiveRadarrBlock::CollectionDetails.into());
      app
        .data
        .radarr_data
        .collection_movies
        .set_items(vec![CollectionMovie::default()]);

      CollectionDetailsHandler::with(&ESC_KEY, &mut app, &ActiveRadarrBlock::CollectionDetails)
        .handle();

      assert_eq!(
        app.get_current_route(),
        &ActiveRadarrBlock::Collections.into()
      );
      assert!(app.data.radarr_data.collection_movies.items.is_empty());
    }

    #[test]
    fn test_esc_view_movie_overview() {
      let mut app = App::default();
      app.push_navigation_stack(ActiveRadarrBlock::CollectionDetails.into());
      app.push_navigation_stack(ActiveRadarrBlock::ViewMovieOverview.into());

      CollectionDetailsHandler::with(&ESC_KEY, &mut app, &ActiveRadarrBlock::ViewMovieOverview)
        .handle();

      assert_eq!(
        app.get_current_route(),
        &ActiveRadarrBlock::CollectionDetails.into()
      );
    }
  }
}