import { Client, isFullBlock } from "@notionhq/client";
import { BlockObjectRequest } from "@notionhq/client/build/src/api-endpoints";
import { formatValue } from "../../../format/formatValue";
import {
  isStatGroupDesc,
  StatDesc,
  StatGroupDesc,
  StatsType,
} from "../../../statistiques/v2/desc/StatsDesc";
import { listAllChildrenBlocks } from "../../utils/listAllChildrenBlocks";
import { removeBlocks } from "../../utils/removeBlocks";

export async function publishStatsToPage<D extends StatGroupDesc>(
  notionClient: Client,
  statsPageId: string,
  descriptor: D,
  stats: StatsType<D>
) {
  const childrenBlocks = (
    await listAllChildrenBlocks(notionClient, {
      block_id: statsPageId,
    })
  ).filter(isFullBlock);
  const blocksIdsToRemove = childrenBlocks.map((b) => b.id);
  await removeBlocks(notionClient, blocksIdsToRemove);

  const newBlocks = createStatGroupChildrenListItemBlock(descriptor, stats);

  await notionClient.blocks.children.append({
    block_id: statsPageId,
    children: [...newBlocks],
  });
}

function createStatGroupListItemBlock<D extends StatGroupDesc>(
  descriptor: D,
  stats: StatsType<D>
): BulletedListItemBlockObjectRequest {
  return {
    bulleted_list_item: {
      rich_text: [
        {
          text: {
            content: descriptor.label,
          },
        },
      ],
      children: createStatGroupChildrenListItemBlock(
        descriptor,
        stats
      ) as BulletedListItemChildren,
    },
  };
}

type BulletedListItemBlockObjectRequest = Extract<
  BlockObjectRequest,
  { bulleted_list_item: object }
>;

type BulletedListItemChildren =
  BulletedListItemBlockObjectRequest["bulleted_list_item"]["children"];

function createStatGroupChildrenListItemBlock<D extends StatGroupDesc>(
  descriptor: D,
  stats: StatsType<D>
): BulletedListItemBlockObjectRequest[] {
  return Object.keys(descriptor.stats).map((statName) => {
    const childStatDesc = descriptor.stats[statName];
    const childStatValue = stats[statName];

    return isStatGroupDesc(childStatDesc)
      ? createStatGroupListItemBlock(
          childStatDesc,
          childStatValue as StatsType<typeof childStatDesc>
        )
      : createStatListItemBlock(childStatDesc, childStatValue as number);
  });
}

function createStatListItemBlock(
  descriptor: StatDesc,
  statValue: number
): BulletedListItemBlockObjectRequest {
  return {
    bulleted_list_item: {
      rich_text: [
        {
          text: {
            content:
              descriptor.label + ": " + formatValue(statValue, descriptor),
          },
        },
      ],
    },
  };
}