import { createRequire } from 'module';
import fs from 'fs';
import path from 'path';
import { fileURLToPath } from 'url';
import PocketBase from 'pocketbase';

const require = createRequire(import.meta.url);
const __filename = fileURLToPath(import.meta.url);
const __dirname = path.dirname(__filename);

let runtimeConfig = {};
try {
    runtimeConfig = require('../pocket-base/bai_api_pb_hooks/bai_api_shared/config/runtime.js');
} catch (_error) {
    runtimeConfig = {};
}

function readEnvFile(filePath) {
    if (!fs.existsSync(filePath)) return {};

    const content = fs.readFileSync(filePath, 'utf8');
    const result = {};

    for (const rawLine of content.split(/\r?\n/)) {
        const line = rawLine.trim();
        if (!line || line.startsWith('#')) continue;

        const index = line.indexOf('=');
        if (index === -1) continue;

        const key = line.slice(0, index).trim();
        const value = line.slice(index + 1).trim();
        result[key] = value;
    }

    return result;
}

const backendEnv = readEnvFile(path.resolve(__dirname, '..', 'back-end', '.env'));
const PB_URL = String(
    process.env.PB_URL
    || backendEnv.POCKETBASE_API_URL
    || runtimeConfig.POCKETBASE_API_URL
    || 'http://127.0.0.1:8090'
).replace(/\/+$/, '');
const AUTH_TOKEN = process.env.POCKETBASE_AUTH_TOKEN || runtimeConfig.POCKETBASE_AUTH_TOKEN || '';

if (!AUTH_TOKEN) {
    console.error('❌ 缺少 POCKETBASE_AUTH_TOKEN，无法执行 tbl_order 字段迁移。');
    process.exit(1);
}

const pb = new PocketBase(PB_URL);

const TARGET_FIELD = {
    name: 'order_pay_status',
    type: 'text',
    required: false,
};

function normalizeFieldPayload(field, overrides) {
    const payload = Object.assign({}, field, overrides || {});

    if (payload.type === 'number') {
        if (Object.prototype.hasOwnProperty.call(payload, 'onlyInt')) {
            payload.onlyInt = !!payload.onlyInt;
        }
    }

    if (payload.type === 'autodate') {
        payload.onCreate = typeof payload.onCreate === 'boolean' ? payload.onCreate : true;
        payload.onUpdate = typeof payload.onUpdate === 'boolean' ? payload.onUpdate : false;
    }

    if (payload.type === 'file') {
        payload.maxSelect = typeof payload.maxSelect === 'number' ? payload.maxSelect : 0;
        payload.maxSize = typeof payload.maxSize === 'number' ? payload.maxSize : 0;
        payload.mimeTypes = Array.isArray(payload.mimeTypes) ? payload.mimeTypes : null;
    }

    if (payload.type === 'relation') {
        payload.maxSelect = typeof payload.maxSelect === 'number' ? payload.maxSelect : 1;
        payload.cascadeDelete = typeof payload.cascadeDelete === 'boolean' ? payload.cascadeDelete : false;
    }

    return payload;
}

function buildCollectionPayload(collection, fields) {
    return {
        name: collection.name,
        type: collection.type,
        listRule: collection.listRule,
        viewRule: collection.viewRule,
        createRule: collection.createRule,
        updateRule: collection.updateRule,
        deleteRule: collection.deleteRule,
        fields,
        indexes: collection.indexes || [],
    };
}

async function migrateField() {
    const collection = await pb.collections.getOne('tbl_order');
    const fields = Array.isArray(collection.fields) ? collection.fields : [];
    const existingField = fields.find((field) => field && field.name === TARGET_FIELD.name);

    const fieldReady = !!existingField
        && existingField.type === TARGET_FIELD.type
        && existingField.required === TARGET_FIELD.required;

    if (fieldReady) {
        return {
            action: 'skipped',
            field: {
                name: existingField.name,
                type: existingField.type,
                required: !!existingField.required,
            },
        };
    }

    const nextFields = fields
        .filter((field) => field && field.name !== 'id')
        .map((field) => {
            if (field.name === TARGET_FIELD.name) {
                return normalizeFieldPayload(field, TARGET_FIELD);
            }
            return normalizeFieldPayload(field);
        });

    if (!existingField) {
        nextFields.push(normalizeFieldPayload(null, TARGET_FIELD));
    }

    await pb.collections.update(collection.id, buildCollectionPayload(collection, nextFields));

    return {
        action: existingField ? 'normalized' : 'added',
    };
}

async function verifyField() {
    const collection = await pb.collections.getOne('tbl_order');
    const field = (collection.fields || []).find((item) => item && item.name === TARGET_FIELD.name);

    const result = {
        name: field ? field.name : '',
        type: field ? field.type : '',
        required: !!(field && field.required),
        ok: !!field && field.type === TARGET_FIELD.type && field.required === TARGET_FIELD.required,
    };

    if (!result.ok) {
        throw new Error('order_pay_status 字段校验失败: ' + JSON.stringify(result, null, 2));
    }

    return result;
}

async function main() {
    try {
        console.log(`🔄 正在连接 PocketBase: ${PB_URL}`);
        pb.authStore.save(AUTH_TOKEN, null);
        console.log('✅ 已使用 POCKETBASE_AUTH_TOKEN 载入认证状态。');

        const migrated = await migrateField();
        console.log('📝 迁移结果：');
        console.log(JSON.stringify(migrated, null, 2));

        const verified = await verifyField();
        console.log('📝 校验结果：');
        console.log(JSON.stringify(verified, null, 2));

        console.log('🎉 tbl_order.order_pay_status 字段已就绪。');
    } catch (error) {
        console.error('❌ tbl_order 字段迁移失败:');
        console.error('status:', error && error.status);
        console.error('message:', error && error.message);
        console.error('response:', error && error.response);
        console.error('originalError:', error && error.originalError);
        console.error('stack:', error && error.stack);
        process.exitCode = 1;
    }
}

main();