use collab_database::fields::Field;
use collab_database::rows::{new_cell_builder, Cell, Cells, Row};
use serde::{Deserialize, Serialize};

use crate::entities::{FieldType, GroupRowsNotificationPB, InsertedRowPB, RowPB};
use crate::services::cell::insert_checkbox_cell;
use crate::services::field::{
  CheckboxCellData, CheckboxCellDataParser, CheckboxTypeOption, CHECK, UNCHECK,
};
use crate::services::group::action::GroupCustomize;
use crate::services::group::configuration::GroupContext;
use crate::services::group::controller::{
  GenericGroupController, GroupController, GroupGenerator, MoveGroupRowContext,
};
use crate::services::group::{move_group_row, GeneratedGroupConfig, GeneratedGroupContext, Group};

#[derive(Default, Serialize, Deserialize)]
pub struct CheckboxGroupConfiguration {
  pub hide_empty: bool,
}

pub type CheckboxGroupController = GenericGroupController<
  CheckboxGroupConfiguration,
  CheckboxTypeOption,
  CheckboxGroupGenerator,
  CheckboxCellDataParser,
>;

pub type CheckboxGroupContext = GroupContext<CheckboxGroupConfiguration>;

impl GroupCustomize for CheckboxGroupController {
  type CellData = CheckboxCellData;
  fn placeholder_cell(&self) -> Option<Cell> {
    Some(
      new_cell_builder(FieldType::Checkbox)
        .insert_str_value("data", UNCHECK)
        .build(),
    )
  }

  fn can_group(&self, content: &str, cell_data: &Self::CellData) -> bool {
    if cell_data.is_check() {
      content == CHECK
    } else {
      content == UNCHECK
    }
  }

  fn add_or_remove_row_when_cell_changed(
    &mut self,
    row: &Row,
    cell_data: &Self::CellData,
  ) -> Vec<GroupRowsNotificationPB> {
    let mut changesets = vec![];
    self.group_ctx.iter_mut_status_groups(|group| {
      let mut changeset = GroupRowsNotificationPB::new(group.id.clone());
      let is_not_contained = !group.contains_row(&row.id);
      if group.id == CHECK {
        if cell_data.is_uncheck() {
          // Remove the row if the group.id is CHECK but the cell_data is UNCHECK
          changeset.deleted_rows.push(row.id.clone().into_inner());
          group.remove_row(&row.id);
        } else {
          // Add the row to the group if the group didn't contain the row
          if is_not_contained {
            changeset
              .inserted_rows
              .push(InsertedRowPB::new(RowPB::from(row)));
            group.add_row(row.clone());
          }
        }
      }

      if group.id == UNCHECK {
        if cell_data.is_check() {
          // Remove the row if the group.id is UNCHECK but the cell_data is CHECK
          changeset.deleted_rows.push(row.id.clone().into_inner());
          group.remove_row(&row.id);
        } else {
          // Add the row to the group if the group didn't contain the row
          if is_not_contained {
            changeset
              .inserted_rows
              .push(InsertedRowPB::new(RowPB::from(row)));
            group.add_row(row.clone());
          }
        }
      }

      if !changeset.is_empty() {
        changesets.push(changeset);
      }
    });
    changesets
  }

  fn delete_row(&mut self, row: &Row, _cell_data: &Self::CellData) -> Vec<GroupRowsNotificationPB> {
    let mut changesets = vec![];
    self.group_ctx.iter_mut_groups(|group| {
      let mut changeset = GroupRowsNotificationPB::new(group.id.clone());
      if group.contains_row(&row.id) {
        changeset.deleted_rows.push(row.id.clone().into_inner());
        group.remove_row(&row.id);
      }

      if !changeset.is_empty() {
        changesets.push(changeset);
      }
    });
    changesets
  }

  fn move_row(
    &mut self,
    _cell_data: &Self::CellData,
    mut context: MoveGroupRowContext,
  ) -> Vec<GroupRowsNotificationPB> {
    let mut group_changeset = vec![];
    self.group_ctx.iter_mut_groups(|group| {
      if let Some(changeset) = move_group_row(group, &mut context) {
        group_changeset.push(changeset);
      }
    });
    group_changeset
  }
}

impl GroupController for CheckboxGroupController {
  fn will_create_row(&mut self, cells: &mut Cells, field: &Field, group_id: &str) {
    match self.group_ctx.get_group(group_id) {
      None => tracing::warn!("Can not find the group: {}", group_id),
      Some((_, group)) => {
        let is_check = group.id == CHECK;
        let cell = insert_checkbox_cell(is_check, field);
        cells.insert(field.id.clone(), cell);
      },
    }
  }

  fn did_create_row(&mut self, row: &Row, group_id: &str) {
    if let Some(group) = self.group_ctx.get_mut_group(group_id) {
      group.add_row(row.clone())
    }
  }
}

pub struct CheckboxGroupGenerator();
impl GroupGenerator for CheckboxGroupGenerator {
  type Context = CheckboxGroupContext;
  type TypeOptionType = CheckboxTypeOption;

  fn generate_groups(
    _field: &Field,
    _group_ctx: &Self::Context,
    _type_option: &Option<Self::TypeOptionType>,
  ) -> GeneratedGroupContext {
    let check_group = GeneratedGroupConfig {
      group: Group::new(CHECK.to_string(), "".to_string()),
      filter_content: CHECK.to_string(),
    };

    let uncheck_group = GeneratedGroupConfig {
      group: Group::new(UNCHECK.to_string(), "".to_string()),
      filter_content: UNCHECK.to_string(),
    };

    GeneratedGroupContext {
      no_status_group: None,
      group_configs: vec![check_group, uncheck_group],
    }
  }
}