Method post

packages/hydrooj/src/handler/problem.ts:1007–1028

(
        domainId: string, title: string, content: string, pid: string | number = '',
        hidden = false, difficulty = 0, tag: string[] = [],
    )

    @post('difficulty', Types.PositiveInt, (i) => +i <= 10, true)
    @post('tag', Types.Content, true, null, parseCategory)
    async post(
        domainId: string, title: string, content: string, pid: string | number = '',
        hidden = false, difficulty = 0, tag: string[] = [],
    ) {
        if (typeof pid !== 'string') pid = `P${pid}`;
        if (pid && await problem.get(domainId, pid)) throw new ProblemAlreadyExistError(pid);
        const docId = await problem.add(domainId, pid, title, content, this.user._id, tag ?? [], { hidden, difficulty });
        const files = new Set(Array.from(content.matchAll(/file:\/\/([\w-]+\.[a-zA-Z0-9]+)/g)).map((i) => i[1]));
        const tasks = [];
        for (const file of files) {
            if (this.user._files.find((i) => i.name === file)) {
                tasks.push(
                    storage.rename(`user/${this.user._id}/${file}`, `problem/${domainId}/${docId}/additional_file/${file}`, this.user._id)
                        .then(() => problem.addAdditionalFile(domainId, docId, file, '', this.user._id, true)),
                    user.setById(this.user._id, { _files: this.user._files.filter((i) => i.name !== file) }),
                );
            }
        }
        await Promise.all(tasks);
        this.response.body = { pid: pid || docId };
        this.response.redirect = this.url('problem_files', { pid: pid || docId });
    }
}

export const ProblemApi = {