import type {
  MemberMessageReachChannel,
  MemberMessageReachDetailDto,
  MemberMessageReachStatus,
  MemberMessageScheduleType,
  MemberMessageTemplateCategory,
  SaveMemberMessageReachPayload,
  SaveMemberMessageTemplatePayload,
} from '#/api/member/message-reach';
import type {
  MessageReachEditorForm,
  MessageReachFilterForm,
  MessageTemplateEditorForm,
  MessageTemplateFilterForm,
} from '#/views/member/message-reach/types';

import dayjs from 'dayjs';

/** 状态文案。 */
export const MESSAGE_STATUS_TEXT_MAP: Record<MemberMessageReachStatus, string> =
  {
    draft: '草稿',
    pending: '待发送',
    sending: '发送中',
    sent: '已发送',
    failed: '发送失败',
  };

/** 状态标签色。 */
export const MESSAGE_STATUS_COLOR_MAP: Record<
  MemberMessageReachStatus,
  string
> = {
  draft: 'default',
  pending: 'processing',
  sending: 'warning',
  sent: 'success',
  failed: 'error',
};

/** 渠道文案。 */
export const MESSAGE_CHANNEL_TEXT_MAP: Record<
  MemberMessageReachChannel,
  string
> = {
  inapp: '站内信',
  sms: '短信',
  'wechat-mini': '微信模板',
};

/** 渠道标签色。 */
export const MESSAGE_CHANNEL_COLOR_MAP: Record<
  MemberMessageReachChannel,
  string
> = {
  inapp: 'blue',
  sms: 'green',
  'wechat-mini': 'orange',
};

/** 模板分类文案。 */
export const MESSAGE_TEMPLATE_CATEGORY_TEXT_MAP: Record<
  MemberMessageTemplateCategory,
  string
> = {
  marketing: '营销',
  notice: '通知',
  recall: '召回',
};

/** 模板分类颜色。 */
export const MESSAGE_TEMPLATE_CATEGORY_COLOR_MAP: Record<
  MemberMessageTemplateCategory,
  string
> = {
  marketing: 'magenta',
  notice: 'blue',
  recall: 'red',
};

/** 收件状态文案。 */
export const MESSAGE_RECIPIENT_STATUS_TEXT_MAP: Record<
  'failed' | 'pending' | 'sent',
  string
> = {
  pending: '待发送',
  sent: '已发送',
  failed: '发送失败',
};

/** 收件状态颜色。 */
export const MESSAGE_RECIPIENT_STATUS_COLOR_MAP: Record<
  'failed' | 'pending' | 'sent',
  string
> = {
  pending: 'processing',
  sent: 'success',
  failed: 'error',
};

/** 格式化百分比。 */
export function formatPercent(value: null | number | undefined) {
  const amount = Number(value ?? 0);
  if (!Number.isFinite(amount)) {
    return '0%';
  }

  const digits = amount % 1 === 0 ? 0 : 1;
  return `${amount.toFixed(digits)}%`;
}

/** 格式化数量。 */
export function formatInteger(value: null | number | undefined) {
  const amount = Number(value ?? 0);
  if (!Number.isFinite(amount)) {
    return '0';
  }
  return Math.round(amount).toLocaleString('zh-CN');
}

/** 格式化时间。 */
export function formatDateTime(value?: string) {
  if (!value) {
    return '—';
  }

  const parsed = dayjs(value);
  if (!parsed.isValid()) {
    return value;
  }
  return parsed.format('YYYY-MM-DD HH:mm');
}

/** 解析消息发送时间。 */
export function resolveMessageTime(
  sentAt?: string,
  scheduledAt?: string,
): string {
  if (sentAt) {
    return formatDateTime(sentAt);
  }
  if (scheduledAt) {
    return formatDateTime(scheduledAt);
  }
  return '—';
}

/** 将列表筛选映射为查询参数。 */
export function mapMessageFilterToQuery(form: MessageReachFilterForm) {
  const keyword = form.keyword.trim();
  return {
    status: form.status || undefined,
    channel: form.channel || undefined,
    keyword: keyword || undefined,
  };
}

/** 将模板筛选映射为查询参数。 */
export function mapTemplateFilterToQuery(form: MessageTemplateFilterForm) {
  const keyword = form.keyword.trim();
  return {
    category: form.category || undefined,
    keyword: keyword || undefined,
  };
}

/** 将详情映射为编辑表单。 */
export function mapDetailToEditorForm(
  detail: MemberMessageReachDetailDto,
  form: MessageReachEditorForm,
) {
  form.messageId = detail.messageId;
  form.templateId = detail.templateId;
  form.title = detail.title;
  form.content = detail.content;
  form.channels = [...detail.channels];
  form.audienceType = detail.audienceType;
  form.audienceTags = [...detail.audienceTags];
  form.scheduleType = detail.scheduleType;
  form.scheduledAt =
    detail.scheduleType === 'scheduled' && detail.scheduledAt
      ? dayjs(detail.scheduledAt)
      : null;
}

/** 重置消息编辑表单。 */
export function resetMessageEditorForm(form: MessageReachEditorForm) {
  form.messageId = '';
  form.templateId = undefined;
  form.title = '';
  form.content = '';
  form.channels = ['inapp'];
  form.audienceType = 'all';
  form.audienceTags = [];
  form.scheduleType = 'immediate';
  form.scheduledAt = null;
}

/** 重置模板编辑表单。 */
export function resetTemplateEditorForm(form: MessageTemplateEditorForm) {
  form.templateId = '';
  form.name = '';
  form.category = 'notice';
  form.content = '';
}

/** 消息编辑表单转保存请求。 */
export function mapMessageEditorFormToSavePayload(
  form: MessageReachEditorForm,
  submitAction: 'draft' | 'send',
): SaveMemberMessageReachPayload {
  const payload: SaveMemberMessageReachPayload = {
    messageId: form.messageId || undefined,
    templateId: form.templateId || undefined,
    title: form.title.trim(),
    content: form.content.trim(),
    channels: [...form.channels],
    audienceType: form.audienceType,
    audienceTags: [...form.audienceTags],
    scheduleType: form.scheduleType,
    scheduledAt:
      form.scheduleType === 'scheduled' && form.scheduledAt
        ? form.scheduledAt.toISOString()
        : undefined,
    submitAction,
  };
  return payload;
}

/** 模板编辑表单转保存请求。 */
export function mapTemplateEditorFormToSavePayload(
  form: MessageTemplateEditorForm,
): SaveMemberMessageTemplatePayload {
  return {
    templateId: form.templateId || undefined,
    name: form.name.trim(),
    category: form.category,
    content: form.content.trim(),
  };
}

/** 切换渠道。 */
export function toggleChannel(
  channels: MemberMessageReachChannel[],
  channel: MemberMessageReachChannel,
) {
  if (channels.includes(channel)) {
    return channels.filter((item) => item !== channel);
  }
  return [...channels, channel];
}

/** 切换标签。 */
export function toggleTag(tags: string[], tag: string) {
  if (tags.includes(tag)) {
    return tags.filter((item) => item !== tag);
  }
  return [...tags, tag];
}

/** 解析时间类型。 */
export function resolveScheduleType(value: string): MemberMessageScheduleType {
  return value === 'scheduled' ? 'scheduled' : 'immediate';
}