import DiscordInteractionCommand from "../../util/DiscordInteractionCommand";
import { MemberAdditionalAcknowledgement, MemberModel } from "../../database/Member";
import Partner, {
  PartnerCommissionType,
  PartnerDepartment,
  PartnerModel,
  PartnerRoleType,
} from "../../database/Partner";
import { ChatInputCommandInteraction, EmbedBuilder, GuildMember, Snowflake } from "discord.js";
import MemberUtil from "../../util/MemberUtil";
import EmojiConfig from "../../util/EmojiConfig";
import Formatters from "../../util/Formatters";

export default class Whois extends DiscordInteractionCommand {
  constructor() {
    super("whois", "Retrieves information about a user.");
    this.builder.addUserOption((option) =>
      option
        .setName("member")
        .setDescription("The member to get information about.")
        .setRequired(true)
    );
  }

  public async execute(interaction: ChatInputCommandInteraction) {
    // defer our reply and perform database/external API operations/lookups
    await interaction.deferReply({ ephemeral: false });
    const target = interaction.options.getUser("member", true);
    const guild = interaction.guild || interaction.client.guilds.cache.get(this.GUILD_ID);
    const guildMember = await guild?.members.fetch(target.id);
    const databaseMember = await MemberModel.findOne({ discordID: target.id });
    const partner = await PartnerModel.findOne({ discordID: target.id });
    // return an error if target was not located
    if (!guildMember)
      return interaction.editReply({ content: `Member target ${target.id} was not located.` });
    // build our embed
    const embed = new EmbedBuilder();
    // if the role type is managerial, add a [k] to the end of the name
    // if the partner exists, set the iconURL to the organizational logo
    const formattedName = Formatters.formatName(guildMember, partner);
    embed.setAuthor({ name: formattedName.text, iconURL: formattedName.iconURL });
    // set the thumbnail to the user's avatar
    embed.setThumbnail(guildMember.user.displayAvatarURL());
    // initialize the description string
    let embedDescription = "";
    if (partner) {
      // set the title to the partner's title if applicable
      if (partner.title) embedDescription += `## __${EmojiConfig.LOC} ${partner.title}__\n`;
      embedDescription += "### Partner Information\n";
      if (partner.emailAddress) embedDescription += `**Email Address**: ${partner.emailAddress}\n`;
      switch (partner.department) {
        case PartnerDepartment.ENGINEERING:
          embedDescription += "**Department**: Dept. of Engineering\n";
          break;
        case PartnerDepartment.OPERATIONS:
          embedDescription += "**Department**: Dept. of Operations\n";
          break;
        case PartnerDepartment.INDEPENDENT_AGENCY:
          embedDescription += "**Department**: Independent Agency/Contractor\n";
          break;
      }
      switch (partner.commissionType) {
        case PartnerCommissionType.TENURE:
          embedDescription += "**Commission Type**: Tenure\n";
          break;
        case PartnerCommissionType.PROVISIONAL:
          embedDescription += "**Commission Type**: Provisional\n";
          break;
        case PartnerCommissionType.CONTRACTUAL:
          embedDescription += "**Commission Type**: Contractual/Independent/Collaborator\n";
          break;
        case PartnerCommissionType.ACTING:
          embedDescription += "**Commission Type**: Acting\n";
          break;
        case PartnerCommissionType.INTERIM:
          embedDescription += "**Commission Type**: Interim\n";
          break;
        case PartnerCommissionType.TRIAL:
          embedDescription += "**Commission Type**: Trial/Intern\n";
          break;
      }
      if (partner.directReport) {
        // fetch direct report object ref
        await partner.populate("directReport");
        // ensures that the population propagated correctly before adding to embed
        if (partner.directReport instanceof PartnerModel) {
          const directReportGuildMember = await guild?.members.fetch(
            partner.directReport.discordID as Snowflake
          );
          // fetches GuildMember for the direct report
          embedDescription += `**Direct Report**: ${directReportGuildMember ? Formatters.formatName(directReportGuildMember, partner.directReport).text + ", " : ""}${partner.directReport.title}\n`;
        }
      }
    }
    embed.setColor(guildMember.displayColor);
    if (embedDescription?.length > 0)
      embed.setDescription(`${embedDescription}\n\n<@${guildMember.id}>`);
    // add status to embed
    if (guildMember.presence?.status) {
      switch (guildMember.presence.status) {
        case "online":
          embed.addFields({ name: "Status", value: "Online", inline: true });
          break;
        case "idle":
          embed.addFields({ name: "Status", value: "Idle", inline: true });
          break;
        case "dnd":
          embed.addFields({ name: "Status", value: "Do Not Disturb", inline: true });
          break;
        case "offline":
          embed.addFields({ name: "Status", value: "Online", inline: true });
          break;
        default:
          // TODO: decide what placeholder we should use for values that fall "out of range"
          embed.addFields({ name: "Status", value: "", inline: true });
          break;
      }
    } else {
      embed.addFields({ name: "Status", value: "Offline", inline: true });
    }

    // calculations for joined / created at
    embed.addFields(
      {
        name: "Joined At",
        value: guildMember.joinedTimestamp
          ? `<t:${Math.floor(guildMember.joinedTimestamp / 1000)}>`
          : "Invalid Date",
        inline: true,
      },
      {
        name: "Created At",
        value: guildMember.user.createdTimestamp
          ? `<t:${Math.floor(guildMember.user.createdTimestamp / 1000)}>`
          : "Invalid Date",
        inline: true,
      }
    );

    // TODO: calculations for commscore
    embed.addFields({ name: "CommScore™", value: "[PLACEHOLDER]", inline: false });

    // role calculation (sorting roles by their position)
    let roleString = "";
    for (const role of guildMember.roles.valueOf().sort((a, b) => b.position - a.position)) {
      roleString += `<@&${role[1].id}> `;
    }
    if (roleString) {
      embed.addFields({ name: "Roles", value: roleString });
    } else {
      embed.addFields({ name: "Roles", value: "None" });
    }

    // listing permissions
    const serializedPermissions = guildMember.permissions.serialize();
    const permissionsArray: string[] = [];
    // adding serialized string representation of permissions to array to use in embed field
    if (serializedPermissions.Administrator) permissionsArray.push("Administrator");
    if (serializedPermissions.ManageGuild) permissionsArray.push("Manage Guild");
    if (serializedPermissions.ManageChannels) permissionsArray.push("Manage Channels");
    if (serializedPermissions.ManageRoles) permissionsArray.push("Manage Roles");
    if (serializedPermissions.ManageMessages) permissionsArray.push("Manage Messages");
    if (serializedPermissions.ManageEvents) permissionsArray.push("Manage Events");
    if (serializedPermissions.ManageNicknames) permissionsArray.push("Manage Nicknames");
    if (serializedPermissions.ManageEmojisAndStickers) permissionsArray.push("Manage Emojis");
    if (serializedPermissions.ManageWebhooks) permissionsArray.push("Manage Webhooks");
    if (serializedPermissions.ModerateMembers) permissionsArray.push("Moderate Members");
    if (serializedPermissions.BanMembers) permissionsArray.push("Ban Members");
    if (serializedPermissions.KickMembers) permissionsArray.push("Kick Members");
    if (serializedPermissions.DeafenMembers) permissionsArray.push("Deafen Members");

    // setting key permissions embed field
    if (permissionsArray?.length > 0) {
      embed.addFields({ name: "Key Permissions", value: permissionsArray.join(", ") });
    }

    // determining acknowledgements: MemberAdditionalAcknowledgement || "Guild Owner", "Guild Admin", "Guild Manager", "Guild Moderator"
    const acknowledgementsArray: MemberAdditionalAcknowledgement[] = [];
    if (guildMember.id === guildMember.guild.ownerId) {
      acknowledgementsArray.push("Guild Owner");
    } else if (serializedPermissions.Administrator) {
      acknowledgementsArray.push("Guild Admin");
    } else if (serializedPermissions.ManageGuild) {
      acknowledgementsArray.push("Guild Manager");
    } else if (serializedPermissions.ModerateMembers || serializedPermissions.ManageMessages) {
      acknowledgementsArray.push("Guild Moderator");
    }

    if (partner?.canPerformDevCommands) {
      acknowledgementsArray.push("System Developer");
    }

    // adding acknowledgements to embed
    if (acknowledgementsArray.length > 0) {
      embed.addFields({ name: "Acknowledgements", value: acknowledgementsArray.join(", ") });
    }
    embed.setFooter({
      text: `Discord ID: ${guildMember.id}${databaseMember ? `| Internal ID: ${databaseMember?._id}` : ""}${partner ? ` | Partner ID: ${partner?.id}` : ""}`,
    });

    return await interaction.editReply({ embeds: [embed] });
  }
}