import Vue from 'vue';
import { getBaseUrl } from '@/utils/baseUrl'

// 创建或者打开数据库
export function openIndexedDB() {
	const baseUrl = getBaseUrl();
	const indexedDBName = baseUrl.replace(/http.?:\/\/(.*)[\/|:].*/, "$1");
    const request = window.indexedDB.open(indexedDBName, 1);
    request.onerror = function (event) {
        console.log('数据库打开报错');
    };

    request.onsuccess = function (event) {
        Vue.prototype.$db = request.result;
        console.log('数据库打开成功');
    };
    request.onupgradeneeded = function (event) {
        Vue.prototype.$db = event.target.result;
        Vue.prototype.$db.createObjectStore('mapData', { keyPath: 'id' });
        Vue.prototype.$db.createObjectStore('runPlan', { keyPath: 'templateId' });
    };
}
// 新增数据
export function awaitDbAddData(tableName, data) {
    return new Promise((resolve, reject) => {
        if (Vue.prototype.$db) {
            const request = Vue.prototype.$db.transaction([tableName], 'readwrite').objectStore(tableName).add(data);
            request.onsuccess = function(event) { console.log('数据写入成功'); resolve(request.result); };
            request.onerror = function(event) { console.log('数据写入失败'); reject(event); };
        } else {
            openIndexedDB();
            reject({message: '数据库未打开！'});
        }
    });
}
// 新增数据
export function dbAddData(tableName, data, params, successCallback, errorCallback) {
    if (Vue.prototype.$db) {
        const request = Vue.prototype.$db.transaction([tableName], 'readwrite').objectStore(tableName).add(data);
        request.onsuccess = function(event) {
            if (successCallback && (typeof successCallback === 'function')) {
                successCallback(request.result, params);
            } else {
                console.log('数据写入成功');
            }
        };
        request.onerror = function(event) {
            if (errorCallback && (typeof errorCallback === 'function')) {
                errorCallback(event, params);
            } else {
                console.log('数据写入失败');
            }
        };
    } else {
        openIndexedDB();
        setTimeout(() => {
            dbAddData(tableName, data, params, successCallback, errorCallback);
        }, 500);
    }
}
// 读取数据
export function awaitDbReadData(tableName, key) {
    return new Promise((resolve, reject) => {
        if (Vue.prototype.$db) {
            const request = Vue.prototype.$db.transaction([tableName]).objectStore(tableName).get(key);
            request.onsuccess = function(event) { console.log('数据读取成功'); resolve(request.result); };
            request.onerror = function(event) { console.log('数据读取失败'); reject(event); };
        } else {
            openIndexedDB();
            reject({message: '数据库未打开！'});
        }
    });
}
// 读取数据
export function dbReadData(tableName, key, params, successCallback, errorCallback) {
    if (Vue.prototype.$db) {
        const request = Vue.prototype.$db.transaction([tableName]).objectStore(tableName).get(key);
        request.onsuccess = function(event) {
            if (successCallback && (typeof successCallback === 'function')) {
                successCallback(request.result, params);
            } else {
                console.log('数据读取成功');
            }
        };
        request.onerror = function(event) {
            if (errorCallback && (typeof errorCallback === 'function')) {
                errorCallback(event, params);
            } else {
                console.log('数据读取失败');
            }
        };
    } else {
        openIndexedDB();
        setTimeout(() => {
            dbReadData(tableName, key, params, successCallback, errorCallback);
        }, 500);
    }
}
// 修改数据
export function awaitDbUpdateData(tableName, data) {
    return new Promise((resolve, reject) => {
        if (Vue.prototype.$db) {
            const request = Vue.prototype.$db.transaction([tableName], 'readwrite').objectStore(tableName).put(data);
            request.onsuccess = function(event) { console.log('数据更新成功'); resolve(request.result); };
            request.onerror = function(event) { console.log('数据更新失败'); reject(event); };
        } else {
            openIndexedDB();
            reject({message: '数据库未打开！'});
        }
    });
}
// 修改数据
export function dbUpdateData(tableName, data, params, successCallback, errorCallback) {
    if (Vue.prototype.$db) {
        const request = Vue.prototype.$db.transaction([tableName], 'readwrite').objectStore(tableName).put(data);
        request.onsuccess = function(event) {
            if (successCallback && (typeof successCallback === 'function')) {
                successCallback(request.result, params);
            } else {
                console.log('数据更新成功');
            }
        };
        request.onerror = function(event) {
            if (errorCallback && (typeof errorCallback === 'function')) {
                errorCallback(event, params);
            } else {
                console.log('数据更新失败');
            }
        };
    } else {
        openIndexedDB();
        setTimeout( ()=> {
            dbUpdateData(tableName, data, params, successCallback, errorCallback);
        }, 500);
    }
}
// 删除数据
export function awaitDbDeleteData(tableName, key) {
    return new Promise((resolve, reject) => {
        if (Vue.prototype.$db) {
            const request = Vue.prototype.$db.transaction([tableName], 'readwrite').objectStore(tableName).delete(key);
            request.onsuccess = function(event) { console.log('数据删除成功'); resolve(request.result); };
            request.onerror = function(event) { console.log('数据删除失败'); reject(event); };
        } else {
            openIndexedDB();
            reject({message: '数据库未打开！'});
        }
    });
}
// 删除数据
export function dbDeleteData(tableName, key, params, successCallback, errorCallback) {
    if (Vue.prototype.$db) {
        const request = Vue.prototype.$db.transaction([tableName], 'readwrite').objectStore(tableName).delete(key);
        request.onsuccess = function (event) {
            if (successCallback && (typeof successCallback === 'function')) {
                request.onsuccess = successCallback(request.result, params);
            } else {
                request.onsuccess = function(event) { console.log('数据删除成功'); };
            }
        };
        request.onerror = function (event) {
            if (errorCallback && (typeof errorCallback === 'function')) {
                errorCallback(event, params);
            } else {
                console.log('数据删除失败');
            }
        };
    } else {
        openIndexedDB();
        setTimeout(()=> {
            dbDeleteData(tableName, key, params, successCallback, errorCallback);
        }, 500);
    }
}