import type { DebugPublishMeta } from '../../utils/debugPublish';
import { inferGradeFromAge } from '../../utils/debugPublish';

export type PinyinDictationMode = 'pinyin-tracing' | 'pinyin-dictation';

interface PinyinDictationWorksheetDefinition {
    id: PinyinDictationMode;
    icon: string;
    title: string;
    subtitle: string;
    ageMin: number;
    ageMax: number;
    difficulty: 1 | 2 | 3 | 4;
    tags: string[];
    sortOrder: number;
}

export const PINYIN_DICTATION_WORKSHEET_DEFINITIONS = [
    {
        id: 'pinyin-tracing',
        icon: 'draw-o',
        title: '拼音描红练习',
        subtitle: '跟着描红学拼音字母',
        ageMin: 5,
        ageMax: 7,
        difficulty: 1,
        tags: ['拼音', '描红', '声母', '韵母'],
        sortOrder: 50,
    },
    {
        id: 'pinyin-dictation',
        icon: 'start-a',
        title: '拼音默写练习',
        subtitle: '空白格子默写拼音字母',
        ageMin: 6,
        ageMax: 8,
        difficulty: 2,
        tags: ['拼音', '默写', '声母', '韵母'],
        sortOrder: 51,
    },
] as const satisfies ReadonlyArray<PinyinDictationWorksheetDefinition>;

type PinyinDictationWorksheetRow =
    (typeof PINYIN_DICTATION_WORKSHEET_DEFINITIONS)[number];

const PINYIN_DICTATION_WORKSHEET_BY_ID = Object.fromEntries(
    PINYIN_DICTATION_WORKSHEET_DEFINITIONS.map((m) => [m.id, m]),
) as Record<string, PinyinDictationWorksheetRow>;

export const PINYIN_DICTATION_MODE_OPTIONS =
    PINYIN_DICTATION_WORKSHEET_DEFINITIONS;

export function getModeInfo(id: string) {
    const m = PINYIN_DICTATION_WORKSHEET_BY_ID[id];
    return m ? { title: m.title, desc: m.subtitle } : undefined;
}

export function isValidMode(id: string): boolean {
    return id in PINYIN_DICTATION_WORKSHEET_BY_ID;
}

export function getPublishMetaByMode(id: string): DebugPublishMeta | null {
    const m = PINYIN_DICTATION_WORKSHEET_BY_ID[id];
    if (!m) return null;
    return {
        id: m.id,
        title: m.title,
        subtitle: m.subtitle,
        category: 'pinyin',
        subcategory: 'pinyin-dictation',
        path: `/pinyinPages/pinyinDictation/pinyinDictation?id=${m.id}`,
        ageMin: m.ageMin,
        ageMax: m.ageMax,
        grade: inferGradeFromAge(m.ageMin, m.ageMax),
        difficulty: m.difficulty,
        previewImg: '',
        tags: [...m.tags],
        isNew: false,
        isHot: false,
        sortOrder: m.sortOrder,
        status: 'draft',
    };
}