import { Bot } from "../../bot.ts";
import { DiscordAuditLogEntry } from "../../deps.ts";
import { AuditLogEntry } from "../auditLogEntry.ts";

export function transformAuditLogEntryToDiscordAuditLogEntry(bot: Bot, payload: AuditLogEntry): DiscordAuditLogEntry {
  return {
    id: bot.transformers.reverse.snowflake(payload.id),
    // @ts-expect-error: ts can't identify return type of switch case
    changes: payload.changes?.map((change) => {
      switch (change.key) {
        case "$add":
        case "$remove":
          return {
            key: change.key,
            new_value: (change.new as {
              id: bigint | undefined;
              name: string | undefined;
            }[])?.map((val) => ({
              id: val.id ? bot.transformers.reverse.snowflake(val.id) : undefined,
              name: val.name,
            })),
            old_value: (change.old as {
              id: bigint | undefined;
              name: string | undefined;
            }[] | undefined)?.map((val) => ({
              id: val?.id ? bot.transformers.reverse.snowflake(val.id) : undefined,
              name: val?.name,
            })),
          };
        case "discovery_splash_hash":
        case "banner_hash":
        case "rules_channel_id":
        case "public_updates_channel_id":
        case "icon_hash":
        case "image_hash":
        case "splash_hash":
        case "owner_id":
        case "widget_channel_id":
        case "system_channel_id":
        case "application_id":
        case "permissions":
        case "allow":
        case "deny":
        case "channel_id":
        case "inviter_id":
        case "avatar_hash":
        case "id":
          return {
            key: change.key,
            old_value: change.old ? bot.transformers.reverse.snowflake(change.old as bigint) : "",
            new_value: change.new ? bot.transformers.reverse.snowflake(change.new as bigint) : "",
          };
        case "name":
        case "description":
        case "preferred_locale":
        case "region":
        case "afk_channel_id":
        case "vanity_url_code":
        case "topic":
        case "code":
        case "nick":
        case "location":
          return {
            key: change.key,
            old_value: change.old,
            new_value: change.new,
          };
        case "afk_timeout":
        case "mfa_level":
        case "verification_level":
        case "explicit_content_filter":
        case "default_message_notifications":
        case "prune_delete_days":
        case "position":
        case "bitrate":
        case "rate_limit_per_user":
        case "color":
        case "max_uses":
        case "uses":
        case "max_age":
        case "expire_behavior":
        case "expire_grace_period":
        case "user_limit":
        case "privacy_level":
        case "entity_type":
        case "status":
          return {
            key: change.key,
            old_value: change.old ? Number(change.old) : "",
            new_value: change.new ? Number(change.new) : "",
          };
        case "widget_enabled":
        case "nsfw":
        case "hoist":
        case "mentionable":
        case "temporary":
        case "deaf":
        case "mute":
        case "enable_emoticons":
          return {
            key: change.key,
            old_value: change.old,
            new_value: change.new,
          };
        case "permission_overwrites":
          return {
            key: change.key,
            old_value: change.old,
            new_value: change.new,
          };
        default:
          return {
            key: change.key,
            old_value: change.old,
            new_value: change.new,
          };
      }
    }),
    user_id: payload.userId ? bot.transformers.reverse.snowflake(payload.userId) : null,
    target_id: payload.targetId ? bot.transformers.reverse.snowflake(payload.targetId) : null,
    action_type: payload.actionType,
    options: payload.options
      ? {
        // respect transformer as reference than type
        delete_member_days: payload.options.deleteMemberDays === 0 ? payload.options.deleteMemberDays.toString() : "",
        members_removed: payload.options.membersRemoved === 0 ? payload.options.membersRemoved.toString() : "",
        channel_id: payload.options.channelId ? bot.transformers.reverse.snowflake(payload.options.channelId) : "",
        message_id: payload.options.messageId ? bot.transformers.reverse.snowflake(payload.options.messageId) : "",
        count: payload.options.count === 0 ? payload.options.count.toString() : "",
        id: payload.options.id ? bot.transformers.reverse.snowflake(payload.options.id) : "",
        type: payload.options.type.toString(),
        role_name: payload.options.roleName,
        // make up value to make ts shut up, the orginal value do not persevere in transformer
        application_id: "",
      }
      : undefined,
    reason: payload.reason,
  };
}