import type { AudioContentDetail, AudioContentListItem } from "@/features/audio-contents/model/types";
import { audioContentDetailSchema, audioContentListResponseSchema } from "@/features/audio-contents/model/types";
import { audioContentCreateRequestSchema, audioContentCreateResponseSchema, audioContentDeactivateRequestSchema, audioContentUpdateRequestSchema } from "@/features/audio-contents/schemas/audio-content-schema";
import type { AudioContentCreateRequest, AudioContentCreateResponse, AudioContentDeactivateRequest, AudioContentUpdateRequest } from "@/features/audio-contents/schemas/audio-content-schema";
import type { ApiClient } from "@/shared/api/client";
import type { PageData } from "@/shared/api/pagination";
import { z } from "zod";

export type GetAudioContentsParams = {
  readonly characterId: string;
  readonly page?: number;
  readonly search_word?: string;
  readonly size?: number;
};

export type GetAudioContentParams = {
  readonly characterId: string;
  readonly contentId: string;
};

export type CreateAudioContentParams = {
  readonly characterId: string;
  readonly contentFile: File;
  readonly coverImage: File;
  readonly request: AudioContentCreateRequest;
};

export type UpdateAudioContentParams = {
  readonly coverImage?: File;
  readonly request: AudioContentUpdateRequest;
};

const nullSuccessSchema = z.null();

function createAudioContentFormData(contentFile: File | undefined, coverImage: File | undefined, request: object): FormData {
  const body = new FormData();
  if (contentFile !== undefined) {
    body.append("contentFile", contentFile);
  }
  if (coverImage !== undefined) {
    body.append("coverImage", coverImage);
  }
  body.append("request", new Blob([JSON.stringify(request)], { type: "application/json" }));

  return body;
}

export function createAudioContentCreateBody(params: CreateAudioContentParams): FormData {
  return createAudioContentFormData(params.contentFile, params.coverImage, audioContentCreateRequestSchema.parse(params.request));
}

export function createAudioContentUpdateBody(params: UpdateAudioContentParams): FormData {
  return createAudioContentFormData(undefined, params.coverImage, audioContentUpdateRequestSchema.parse(params.request));
}

export function createAudioContentDeactivateBody(request: AudioContentDeactivateRequest): FormData {
  return createAudioContentFormData(undefined, undefined, audioContentDeactivateRequestSchema.parse(request));
}

function normalizePage(value: number | undefined): number {
  return Math.max(0, Math.trunc(value ?? 0));
}

function normalizeSize(value: number | undefined): number {
  return Math.max(1, Math.trunc(value ?? 20));
}

export async function getAudioContents(apiClient: ApiClient, params: GetAudioContentsParams): Promise<PageData<AudioContentListItem>> {
  const page = normalizePage(params.page);
  const size = normalizeSize(params.size);
  const query = new URLSearchParams({ page: String(page), size: String(size) });
  const searchWord = params.search_word?.trim();
  if (searchWord !== undefined && searchWord.length >= 2) {
    query.set("search_word", searchWord);
  }
  const response = await apiClient.request({
    path: `/api/v2/admin/ai-characters/${encodeURIComponent(params.characterId)}/audio-contents?${query.toString()}`,
    responseSchema: audioContentListResponseSchema,
    authentication: "required",
  });

  return {
    totalCount: response.totalCount,
    page,
    size,
    hasNext: (page + 1) * size < response.totalCount,
    items: response.items,
  };
}

export function getAudioContent(apiClient: ApiClient, params: GetAudioContentParams): Promise<AudioContentDetail> {
  return apiClient.request({
    path: `/api/v2/admin/ai-characters/${encodeURIComponent(params.characterId)}/audio-contents/${encodeURIComponent(params.contentId)}`,
    responseSchema: audioContentDetailSchema,
    authentication: "required",
  });
}

export function createAudioContent(apiClient: ApiClient, params: CreateAudioContentParams): Promise<AudioContentCreateResponse> {
  return apiClient.request({
    path: `/api/v2/admin/ai-characters/${encodeURIComponent(params.characterId)}/audio-contents`,
    method: "POST",
    body: createAudioContentCreateBody(params),
    responseSchema: audioContentCreateResponseSchema,
    authentication: "required",
  });
}

export function updateAudioContent(apiClient: ApiClient, characterId: string, contentId: string, params: UpdateAudioContentParams): Promise<null> {
  return apiClient.request({
    path: `/api/v2/admin/ai-characters/${encodeURIComponent(characterId)}/audio-contents/${encodeURIComponent(contentId)}`,
    method: "PUT",
    body: createAudioContentUpdateBody(params),
    responseSchema: nullSuccessSchema,
    authentication: "required",
  });
}

export function deactivateAudioContent(apiClient: ApiClient, characterId: string, contentId: string): Promise<null> {
  return apiClient.request({
    path: `/api/v2/admin/ai-characters/${encodeURIComponent(characterId)}/audio-contents/${encodeURIComponent(contentId)}`,
    method: "PUT",
    body: createAudioContentDeactivateBody({ isActive: false }),
    responseSchema: nullSuccessSchema,
    authentication: "required",
  });
}