import React, { useMemo, useState } from "react";
import * as GQL from "src/core/generated-graphql";
import {
  MovieSelect,
  TagSelect,
  StudioSelect,
  PerformerSelect,
} from "src/components/Shared/Select";
import {
  ScrapeDialog,
  ScrapeDialogRow,
  ScrapeResult,
  ScrapedInputGroupRow,
  ScrapedTextAreaRow,
  ScrapedImageRow,
  IHasName,
  ScrapedStringListRow,
} from "src/components/Shared/ScrapeDialog";
import clone from "lodash-es/clone";
import {
  useStudioCreate,
  usePerformerCreate,
  useMovieCreate,
  useTagCreate,
  makePerformerCreateInput,
} from "src/core/StashService";
import { useToast } from "src/hooks/Toast";
import DurationUtils from "src/utils/duration";
import { useIntl } from "react-intl";
import { uniq } from "lodash-es";

interface IScrapedStudioRow {
  title: string;
  result: ScrapeResult<string>;
  onChange: (value: ScrapeResult<string>) => void;
  newStudio?: GQL.ScrapedStudio;
  onCreateNew?: (value: GQL.ScrapedStudio) => void;
}

export const ScrapedStudioRow: React.FC<IScrapedStudioRow> = ({
  title,
  result,
  onChange,
  newStudio,
  onCreateNew,
}) => {
  function renderScrapedStudio(
    scrapeResult: ScrapeResult<string>,
    isNew?: boolean,
    onChangeFn?: (value: string) => void
  ) {
    const resultValue = isNew
      ? scrapeResult.newValue
      : scrapeResult.originalValue;
    const value = resultValue ? [resultValue] : [];

    return (
      <StudioSelect
        className="form-control react-select"
        isDisabled={!isNew}
        onSelect={(items) => {
          if (onChangeFn) {
            onChangeFn(items[0]?.id);
          }
        }}
        ids={value}
      />
    );
  }

  return (
    <ScrapeDialogRow
      title={title}
      result={result}
      renderOriginalField={() => renderScrapedStudio(result)}
      renderNewField={() =>
        renderScrapedStudio(result, true, (value) =>
          onChange(result.cloneWithValue(value))
        )
      }
      onChange={onChange}
      newValues={newStudio ? [newStudio] : undefined}
      onCreateNew={() => {
        if (onCreateNew && newStudio) onCreateNew(newStudio);
      }}
    />
  );
};

interface IScrapedObjectsRow<T> {
  title: string;
  result: ScrapeResult<string[]>;
  onChange: (value: ScrapeResult<string[]>) => void;
  newObjects?: T[];
  onCreateNew?: (value: T) => void;
  renderObjects: (
    result: ScrapeResult<string[]>,
    isNew?: boolean,
    onChange?: (value: string[]) => void
  ) => JSX.Element;
}

export const ScrapedObjectsRow = <T extends IHasName>(
  props: IScrapedObjectsRow<T>
) => {
  const { title, result, onChange, newObjects, onCreateNew, renderObjects } =
    props;

  return (
    <ScrapeDialogRow
      title={title}
      result={result}
      renderOriginalField={() => renderObjects(result)}
      renderNewField={() =>
        renderObjects(result, true, (value) =>
          onChange(result.cloneWithValue(value))
        )
      }
      onChange={onChange}
      newValues={newObjects}
      onCreateNew={(i) => {
        if (onCreateNew) onCreateNew(newObjects![i]);
      }}
    />
  );
};

type IScrapedObjectRowImpl<T> = Omit<IScrapedObjectsRow<T>, "renderObjects">;

export const ScrapedPerformersRow: React.FC<
  IScrapedObjectRowImpl<GQL.ScrapedPerformer>
> = ({ title, result, onChange, newObjects, onCreateNew }) => {
  const performersCopy = useMemo(() => {
    return (
      newObjects?.map((p) => {
        const name: string = p.name ?? "";
        return { ...p, name };
      }) ?? []
    );
  }, [newObjects]);

  type PerformerType = GQL.ScrapedPerformer & {
    name: string;
  };

  function renderScrapedPerformers(
    scrapeResult: ScrapeResult<string[]>,
    isNew?: boolean,
    onChangeFn?: (value: string[]) => void
  ) {
    const resultValue = isNew
      ? scrapeResult.newValue
      : scrapeResult.originalValue;
    const value = resultValue ?? [];

    return (
      <PerformerSelect
        isMulti
        className="form-control react-select"
        isDisabled={!isNew}
        onSelect={(items) => {
          if (onChangeFn) {
            onChangeFn(items.map((i) => i.id));
          }
        }}
        ids={value}
      />
    );
  }

  return (
    <ScrapedObjectsRow<PerformerType>
      title={title}
      result={result}
      renderObjects={renderScrapedPerformers}
      onChange={onChange}
      newObjects={performersCopy}
      onCreateNew={onCreateNew}
    />
  );
};

export const ScrapedMoviesRow: React.FC<
  IScrapedObjectRowImpl<GQL.ScrapedMovie>
> = ({ title, result, onChange, newObjects, onCreateNew }) => {
  const moviesCopy = useMemo(() => {
    return (
      newObjects?.map((p) => {
        const name: string = p.name ?? "";
        return { ...p, name };
      }) ?? []
    );
  }, [newObjects]);

  type MovieType = GQL.ScrapedMovie & {
    name: string;
  };

  function renderScrapedMovies(
    scrapeResult: ScrapeResult<string[]>,
    isNew?: boolean,
    onChangeFn?: (value: string[]) => void
  ) {
    const resultValue = isNew
      ? scrapeResult.newValue
      : scrapeResult.originalValue;
    const value = resultValue ?? [];

    return (
      <MovieSelect
        isMulti
        className="form-control react-select"
        isDisabled={!isNew}
        onSelect={(items) => {
          if (onChangeFn) {
            onChangeFn(items.map((i) => i.id));
          }
        }}
        ids={value}
      />
    );
  }

  return (
    <ScrapedObjectsRow<MovieType>
      title={title}
      result={result}
      renderObjects={renderScrapedMovies}
      onChange={onChange}
      newObjects={moviesCopy}
      onCreateNew={onCreateNew}
    />
  );
};

export const ScrapedTagsRow: React.FC<
  IScrapedObjectRowImpl<GQL.ScrapedTag>
> = ({ title, result, onChange, newObjects, onCreateNew }) => {
  function renderScrapedTags(
    scrapeResult: ScrapeResult<string[]>,
    isNew?: boolean,
    onChangeFn?: (value: string[]) => void
  ) {
    const resultValue = isNew
      ? scrapeResult.newValue
      : scrapeResult.originalValue;
    const value = resultValue ?? [];

    return (
      <TagSelect
        isMulti
        className="form-control react-select"
        isDisabled={!isNew}
        onSelect={(items) => {
          if (onChangeFn) {
            onChangeFn(items.map((i) => i.id));
          }
        }}
        ids={value}
      />
    );
  }

  return (
    <ScrapedObjectsRow<GQL.ScrapedTag>
      title={title}
      result={result}
      renderObjects={renderScrapedTags}
      onChange={onChange}
      newObjects={newObjects}
      onCreateNew={onCreateNew}
    />
  );
};

interface ISceneScrapeDialogProps {
  scene: Partial<GQL.SceneUpdateInput>;
  scraped: GQL.ScrapedScene;
  endpoint?: string;

  onClose: (scrapedScene?: GQL.ScrapedScene) => void;
}

interface IHasStoredID {
  stored_id?: string | null;
}

export const SceneScrapeDialog: React.FC<ISceneScrapeDialogProps> = ({
  scene,
  scraped,
  onClose,
  endpoint,
}) => {
  const [title, setTitle] = useState<ScrapeResult<string>>(
    new ScrapeResult<string>(scene.title, scraped.title)
  );
  const [code, setCode] = useState<ScrapeResult<string>>(
    new ScrapeResult<string>(scene.code, scraped.code)
  );

  const [urls, setURLs] = useState<ScrapeResult<string[]>>(
    new ScrapeResult<string[]>(
      scene.urls,
      scraped.urls
        ? uniq((scene.urls ?? []).concat(scraped.urls ?? []))
        : undefined
    )
  );

  const [date, setDate] = useState<ScrapeResult<string>>(
    new ScrapeResult<string>(scene.date, scraped.date)
  );
  const [director, setDirector] = useState<ScrapeResult<string>>(
    new ScrapeResult<string>(scene.director, scraped.director)
  );
  const [studio, setStudio] = useState<ScrapeResult<string>>(
    new ScrapeResult<string>(scene.studio_id, scraped.studio?.stored_id)
  );
  const [newStudio, setNewStudio] = useState<GQL.ScrapedStudio | undefined>(
    scraped.studio && !scraped.studio.stored_id ? scraped.studio : undefined
  );

  const [stashID, setStashID] = useState(
    new ScrapeResult<string>(
      scene.stash_ids?.find((s) => s.endpoint === endpoint)?.stash_id,
      scraped.remote_site_id
    )
  );

  function mapStoredIdObjects(
    scrapedObjects?: IHasStoredID[]
  ): string[] | undefined {
    if (!scrapedObjects) {
      return undefined;
    }
    const ret = scrapedObjects
      .map((p) => p.stored_id)
      .filter((p) => {
        return p !== undefined && p !== null;
      }) as string[];

    if (ret.length === 0) {
      return undefined;
    }

    // sort by id numerically
    ret.sort((a, b) => {
      return parseInt(a, 10) - parseInt(b, 10);
    });

    return ret;
  }

  function sortIdList(idList?: string[] | null) {
    if (!idList) {
      return;
    }

    const ret = clone(idList);
    // sort by id numerically
    ret.sort((a, b) => {
      return parseInt(a, 10) - parseInt(b, 10);
    });

    return ret;
  }

  const [performers, setPerformers] = useState<ScrapeResult<string[]>>(
    new ScrapeResult<string[]>(
      sortIdList(scene.performer_ids),
      mapStoredIdObjects(scraped.performers ?? undefined)
    )
  );
  const [newPerformers, setNewPerformers] = useState<GQL.ScrapedPerformer[]>(
    scraped.performers?.filter((t) => !t.stored_id) ?? []
  );

  const [movies, setMovies] = useState<ScrapeResult<string[]>>(
    new ScrapeResult<string[]>(
      sortIdList(scene.movies?.map((p) => p.movie_id)),
      mapStoredIdObjects(scraped.movies ?? undefined)
    )
  );
  const [newMovies, setNewMovies] = useState<GQL.ScrapedMovie[]>(
    scraped.movies?.filter((t) => !t.stored_id) ?? []
  );

  const [tags, setTags] = useState<ScrapeResult<string[]>>(
    new ScrapeResult<string[]>(
      sortIdList(scene.tag_ids),
      mapStoredIdObjects(scraped.tags ?? undefined)
    )
  );
  const [newTags, setNewTags] = useState<GQL.ScrapedTag[]>(
    scraped.tags?.filter((t) => !t.stored_id) ?? []
  );

  const [details, setDetails] = useState<ScrapeResult<string>>(
    new ScrapeResult<string>(scene.details, scraped.details)
  );

  const [image, setImage] = useState<ScrapeResult<string>>(
    new ScrapeResult<string>(scene.cover_image, scraped.image)
  );

  const [createStudio] = useStudioCreate();
  const [createPerformer] = usePerformerCreate();
  const [createMovie] = useMovieCreate();
  const [createTag] = useTagCreate();

  const intl = useIntl();
  const Toast = useToast();

  // don't show the dialog if nothing was scraped
  if (
    [
      title,
      code,
      urls,
      date,
      director,
      studio,
      performers,
      movies,
      tags,
      details,
      image,
      stashID,
    ].every((r) => !r.scraped) &&
    newTags.length === 0 &&
    newPerformers.length === 0 &&
    newMovies.length === 0 &&
    !newStudio
  ) {
    onClose();
    return <></>;
  }

  async function createNewStudio(toCreate: GQL.ScrapedStudio) {
    try {
      const result = await createStudio({
        variables: {
          input: {
            name: toCreate.name,
            url: toCreate.url,
          },
        },
      });

      // set the new studio as the value
      setStudio(studio.cloneWithValue(result.data!.studioCreate!.id));
      setNewStudio(undefined);

      Toast.success({
        content: (
          <span>
            Created studio: <b>{toCreate.name}</b>
          </span>
        ),
      });
    } catch (e) {
      Toast.error(e);
    }
  }

  async function createNewPerformer(toCreate: GQL.ScrapedPerformer) {
    const input = makePerformerCreateInput(toCreate);

    try {
      const result = await createPerformer({
        variables: { input },
      });

      const newValue = [...(performers.newValue ?? [])];
      if (result.data?.performerCreate)
        newValue.push(result.data.performerCreate.id);

      // add the new performer to the new performers value
      const performerClone = performers.cloneWithValue(newValue);
      setPerformers(performerClone);

      // remove the performer from the list
      const newPerformersClone = newPerformers.concat();
      const pIndex = newPerformersClone.findIndex(
        (p) => p.name === toCreate.name
      );
      if (pIndex === -1) throw new Error("Could not find performer to remove");

      newPerformersClone.splice(pIndex, 1);

      setNewPerformers(newPerformersClone);

      Toast.success({
        content: (
          <span>
            Created performer: <b>{toCreate.name}</b>
          </span>
        ),
      });
    } catch (e) {
      Toast.error(e);
    }
  }

  async function createNewMovie(toCreate: GQL.ScrapedMovie) {
    let movieInput: GQL.MovieCreateInput = { name: "" };
    try {
      movieInput = Object.assign(movieInput, toCreate);

      // #788 - convert duration and rating to the correct type
      movieInput.duration = DurationUtils.stringToSeconds(
        toCreate.duration ?? undefined
      );
      if (!movieInput.duration) {
        movieInput.duration = undefined;
      }

      movieInput.rating = parseInt(toCreate.rating ?? "0", 10);
      if (!movieInput.rating || Number.isNaN(movieInput.rating)) {
        movieInput.rating = undefined;
      }

      const result = await createMovie({
        variables: { input: movieInput },
      });

      // add the new movie to the new movies value
      const movieClone = movies.cloneWithValue(movies.newValue);
      if (!movieClone.newValue) {
        movieClone.newValue = [];
      }
      movieClone.newValue.push(result.data!.movieCreate!.id);
      setMovies(movieClone);

      // remove the movie from the list
      const newMoviesClone = newMovies.concat();
      const pIndex = newMoviesClone.findIndex((p) => p.name === toCreate.name);
      if (pIndex === -1) throw new Error("Could not find movie to remove");
      newMoviesClone.splice(pIndex, 1);

      setNewMovies(newMoviesClone);

      Toast.success({
        content: (
          <span>
            Created movie: <b>{toCreate.name}</b>
          </span>
        ),
      });
    } catch (e) {
      Toast.error(e);
    }
  }

  async function createNewTag(toCreate: GQL.ScrapedTag) {
    const tagInput: GQL.TagCreateInput = { name: toCreate.name ?? "" };
    try {
      const result = await createTag({
        variables: {
          input: tagInput,
        },
      });

      const newValue = [...(tags.newValue ?? [])];
      if (result.data?.tagCreate) newValue.push(result.data.tagCreate.id);

      // add the new tag to the new tags value
      const tagClone = tags.cloneWithValue(newValue);
      setTags(tagClone);

      // remove the tag from the list
      const newTagsClone = newTags.concat();
      const pIndex = newTagsClone.indexOf(toCreate);
      if (pIndex === -1) throw new Error("Could not find tag to remove");
      newTagsClone.splice(pIndex, 1);

      setNewTags(newTagsClone);

      Toast.success({
        content: (
          <span>
            Created tag: <b>{toCreate.name}</b>
          </span>
        ),
      });
    } catch (e) {
      Toast.error(e);
    }
  }

  function makeNewScrapedItem(): GQL.ScrapedSceneDataFragment {
    const newStudioValue = studio.getNewValue();

    return {
      title: title.getNewValue(),
      code: code.getNewValue(),
      urls: urls.getNewValue(),
      date: date.getNewValue(),
      director: director.getNewValue(),
      studio: newStudioValue
        ? {
            stored_id: newStudioValue,
            name: "",
          }
        : undefined,
      performers: performers.getNewValue()?.map((p) => {
        return {
          stored_id: p,
          name: "",
        };
      }),
      movies: movies.getNewValue()?.map((m) => {
        return {
          stored_id: m,
          name: "",
        };
      }),
      tags: tags.getNewValue()?.map((m) => {
        return {
          stored_id: m,
          name: "",
        };
      }),
      details: details.getNewValue(),
      image: image.getNewValue(),
      remote_site_id: stashID.getNewValue(),
    };
  }

  function renderScrapeRows() {
    return (
      <>
        <ScrapedInputGroupRow
          title={intl.formatMessage({ id: "title" })}
          result={title}
          onChange={(value) => setTitle(value)}
        />
        <ScrapedInputGroupRow
          title={intl.formatMessage({ id: "scene_code" })}
          result={code}
          onChange={(value) => setCode(value)}
        />
        <ScrapedStringListRow
          title={intl.formatMessage({ id: "urls" })}
          result={urls}
          onChange={(value) => setURLs(value)}
        />
        <ScrapedInputGroupRow
          title={intl.formatMessage({ id: "date" })}
          placeholder="YYYY-MM-DD"
          result={date}
          onChange={(value) => setDate(value)}
        />
        <ScrapedInputGroupRow
          title={intl.formatMessage({ id: "director" })}
          result={director}
          onChange={(value) => setDirector(value)}
        />
        <ScrapedStudioRow
          title={intl.formatMessage({ id: "studios" })}
          result={studio}
          onChange={(value) => setStudio(value)}
          newStudio={newStudio}
          onCreateNew={createNewStudio}
        />
        <ScrapedPerformersRow
          title={intl.formatMessage({ id: "performers" })}
          result={performers}
          onChange={(value) => setPerformers(value)}
          newObjects={newPerformers}
          onCreateNew={createNewPerformer}
        />
        <ScrapedMoviesRow
          title={intl.formatMessage({ id: "movies" })}
          result={movies}
          onChange={(value) => setMovies(value)}
          newObjects={newMovies}
          onCreateNew={createNewMovie}
        />
        <ScrapedTagsRow
          title={intl.formatMessage({ id: "tags" })}
          result={tags}
          onChange={(value) => setTags(value)}
          newObjects={newTags}
          onCreateNew={createNewTag}
        />
        <ScrapedTextAreaRow
          title={intl.formatMessage({ id: "details" })}
          result={details}
          onChange={(value) => setDetails(value)}
        />
        <ScrapedInputGroupRow
          title={intl.formatMessage({ id: "stash_id" })}
          result={stashID}
          locked
          onChange={(value) => setStashID(value)}
        />
        <ScrapedImageRow
          title={intl.formatMessage({ id: "cover_image" })}
          className="scene-cover"
          result={image}
          onChange={(value) => setImage(value)}
        />
      </>
    );
  }

  return (
    <ScrapeDialog
      title={intl.formatMessage(
        { id: "dialogs.scrape_entity_title" },
        { entity_type: intl.formatMessage({ id: "scene" }) }
      )}
      renderScrapeRows={renderScrapeRows}
      onClose={(apply) => {
        onClose(apply ? makeNewScrapedItem() : undefined);
      }}
    />
  );
};

export default SceneScrapeDialog;