import { postCmd } from "../types";
import { commandTypeHelpers as ct } from "../../../commandTypes";
import { actualPostCmd } from "../util/actualPostCmd";
import { sendErrorMessage } from "src/pluginUtils";
import { Embed } from "eris";
import { isValidEmbed } from "src/utils";
import { formatContent } from "../util/formatContent";

const COLOR_MATCH_REGEX = /^#?([0-9a-f]{6})$/;

export const PostEmbedCmd = postCmd({
  trigger: "post_embed",
  permission: "can_post",

  signature: {
    channel: ct.textChannel(),
    maincontent: ct.string({ catchAll: true }),

    title: ct.string({ option: true }),
    content: ct.string({ option: true }),
    color: ct.string({ option: true }),
    raw: ct.bool({ option: true, isSwitch: true, shortcut: "r" }),

    schedule: ct.string({ option: true }),
    repeat: ct.delay({ option: true }),
    "repeat-until": ct.string({ option: true }),
    "repeat-times": ct.number({ option: true }),
  },

  async run({ message: msg, args, pluginData }) {
    const content = args.content || args.maincontent;

    if (!args.title && !content) {
      sendErrorMessage(pluginData, msg.channel, "Title or content required");
      return;
    }

    let color = null;
    if (args.color) {
      const colorMatch = args.color.toLowerCase().match(COLOR_MATCH_REGEX);
      if (!colorMatch) {
        sendErrorMessage(pluginData, msg.channel, "Invalid color specified, use hex colors");
        return;
      }

      color = parseInt(colorMatch[1], 16);
    }

    let embed: Embed = { type: "rich" };
    if (args.title) embed.title = args.title;
    if (color) embed.color = color;

    if (content) {
      if (args.raw) {
        let parsed;
        try {
          parsed = JSON.parse(content);
        } catch (e) {
          sendErrorMessage(pluginData, msg.channel, "Syntax error in embed JSON");
          return;
        }

        if (!isValidEmbed(parsed)) {
          sendErrorMessage(pluginData, msg.channel, "Embed is not valid");
          return;
        }

        embed = Object.assign({}, embed, parsed);
      } else {
        embed.description = formatContent(content);
      }
    }

    actualPostCmd(pluginData, msg, args.channel, { embed }, args);
  },
});