import { Brackets } from "typeorm";
import { fetchMeta } from "../../../../misc/fetch-meta.js";
import { Notes } from "../../../../models/index.js";
import { activeUsersChart } from "../../../../services/chart/index.js";
import define from "../../define.js";
import { ApiError } from "../../error.js";
import { generateMutedUserQuery } from "../../common/generate-muted-user-query.js";
import { makePaginationQuery } from "../../common/make-pagination-query.js";
import { generateRepliesQuery } from "../../common/generate-replies-query.js";
import { generateChannelQuery } from "../../common/generate-channel-query.js";
import { generateBlockedUserQuery } from "../../common/generate-block-query.js";
import { generateMutedUserRenotesQueryForNotes } from "../../common/generated-muted-renote-query.js";
import { generateExcludeMemorietQuery } from "../../common/generate-exclude-memoriet-query.js";
import { injectPromo } from "../../common/inject-promo.js";
export const meta = {
    tags: [
        "notes"
    ],
    requireCredentialPrivateMode: true,
    res: {
        type: "array",
        optional: false,
        nullable: false,
        items: {
            type: "object",
            optional: false,
            nullable: false,
            ref: "Note"
        }
    },
    errors: {
        rtlDisabled: {
            message: "Recommended timeline has been disabled.",
            code: "RTL_DISABLED",
            id: "45a6eb02-7695-4393-b023-dd3be9aaaefe"
        },
        queryError: {
            message: "Please follow more users.",
            code: "QUERY_ERROR",
            id: "620763f4-f621-4533-ab33-0577a1a3c343"
        }
    }
};
export const paramDef = {
    type: "object",
    properties: {
        withFiles: {
            type: "boolean",
            default: false,
            description: "Only show notes that have attached files."
        },
        fileType: {
            type: "array",
            items: {
                type: "string"
            }
        },
        excludeNsfw: {
            type: "boolean",
            default: false
        },
        limit: {
            type: "integer",
            minimum: 1,
            maximum: 100,
            default: 10
        },
        sinceId: {
            type: "string",
            format: "misskey:id"
        },
        untilId: {
            type: "string",
            format: "misskey:id"
        },
        sinceDate: {
            type: "integer"
        },
        untilDate: {
            type: "integer"
        },
        withReplies: {
            type: "boolean",
            default: false,
            description: "Show replies in the timeline"
        }
    },
    required: []
};
export default define(meta, paramDef, async (ps, user)=>{
    const m = await fetchMeta();
    if (m.disableRecommendedTimeline) {
        if (user == null || !(user.isAdmin || user.isModerator)) {
            throw new ApiError(meta.errors.rtlDisabled);
        }
    }
    //#region Construct query
    const query = makePaginationQuery(Notes.createQueryBuilder("note"), ps.sinceId, ps.untilId, ps.sinceDate, ps.untilDate).andWhere(`note.userHost IN (:...instances)`, {
        instances: m.recommendedInstances
    }).andWhere("note.visibility = 'public'").andWhere(`NOT ('adservice' = ANY(note.tags))`).innerJoinAndSelect("note.user", "user").leftJoinAndSelect("note.reply", "reply").leftJoinAndSelect("note.renote", "renote").leftJoinAndSelect("reply.user", "replyUser").leftJoinAndSelect("renote.user", "renoteUser");
    generateChannelQuery(query, user);
    generateRepliesQuery(query, ps.withReplies, user);
    if (user) generateMutedUserQuery(query, user);
    if (user) generateBlockedUserQuery(query, user);
    if (user) generateMutedUserRenotesQueryForNotes(query, user);
    generateExcludeMemorietQuery(query);
    if (ps.withFiles) {
        query.andWhere("note.fileIds != '{}'");
    }
    if (ps.fileType != null) {
        query.andWhere("note.fileIds != '{}'");
        query.andWhere(new Brackets((qb)=>{
            for (const type of ps.fileType){
                const i = ps.fileType.indexOf(type);
                qb.orWhere(`:type${i} = ANY(note.attachedFileTypes)`, {
                    [`type${i}`]: type
                });
            }
        }));
        if (ps.excludeNsfw) {
            query.andWhere("note.cw IS NULL");
            query.andWhere('0 = (SELECT COUNT(*) FROM drive_file df WHERE df.id = ANY(note."fileIds") AND df."isSensitive" = TRUE)');
        }
    }
    //#endregion
    process.nextTick(()=>{
        if (user) {
            activeUsersChart.read(user);
        }
    });
    try {
        const notes = await query.take(ps.limit).getMany();
        await injectPromo(notes, user);
        return await Notes.packMany(notes, user);
    } catch (error) {
        throw new ApiError(meta.errors.queryError);
    }
});
