antosdk-apps/SQLiteDB/main.ts
2023-02-20 18:06:10 +01:00

638 lines
24 KiB
TypeScript

/**
* Define missing API in Array interface
*
* @interface Array
* @template T
*/
interface Array<T> {
/**
* Check if the array includes an element
*
* @param {T} element to check
* @returns {boolean}
* @memberof Array
*/
includes(el: T):boolean;
}
namespace OS {
export namespace application {
/**
*
* @class SQLiteDBBrowser
* @extends {BaseApplication}
*/
export class SQLiteDBBrowser extends BaseApplication {
private filehandle: API.VFS.BaseFileHandle;
private tbl_list: GUI.tag.ListViewTag;
private grid_table: GUI.tag.GridViewTag;
private grid_scheme: GUI.tag.GridViewTag;
private container: GUI.tag.TabContainerTag;
private last_max_id: number;
private n_records: number;
private btn_loadmore: GUI.tag.ButtonTag;
constructor(args: AppArgumentsType[]) {
super("SQLiteDBBrowser", args);
}
menu() {
return [
{
text: "__(File)",
nodes: [
{
text: "__(New database)",
dataid: "new",
shortcut: 'A-N'
},
{
text: "__(Open database)",
dataid: "open",
shortcut: 'A-O'
},
],
onchildselect: (e) => {
switch (e.data.item.data.dataid) {
case "new":
return this.newFile();
case "open":
return this.openFile();
}
}
}
];
}
private list_tables()
{
this.filehandle.read()
.then((data) => {
const list = [];
for(let k in data)
{
list.push({
text: k,
name: k,
handle: data[k]
});
}
this.tbl_list.data = list;
if(list.length > 0)
{
this.tbl_list.selected = list.length - 1;
}
})
}
private async openFile() {
try {
let file: API.VFS.BaseFileHandle;
if (this.args && this.args.length > 0) {
file = this.args[0].path.asFileHandle();
}
else
{
const d_1 = await this.openDialog("FileDialog",{
title: __("Open file"),
mimes: this.meta().mimes
});
file = d_1.file.path.asFileHandle();
}
this.filehandle=`sqlite://${file.genealogy.join("/")}`.asFileHandle();
await this.filehandle.onready();
this.list_tables();
}
catch(e)
{
this.error(__("Unable to open database file: {0}",e.toString()),e);
};
}
private async newFile() {
try {
const f = await this.openDialog("FileDialog",{
title: __("Save as"),
file: "Untitled.db"
});
var d_1 = f.file.path.asFileHandle();
if(f.file.type==="file") {
d_1=d_1.parent();
}
const target=`${d_1.path}/${f.name}`.asFileHandle();
this.filehandle=`sqlite://${target.genealogy.join("/")}`.asFileHandle();
await this.filehandle.onready();
this.list_tables();
}
catch(e) {
this.error(__("Unable to init database file: {0}",e.toString()),e);
}
}
main(): void {
this.filehandle = undefined;
this.tbl_list = this.find("tbl-list") as GUI.tag.ListViewTag;
this.grid_table = this.find("tb-browser") as GUI.tag.GridViewTag;
this.grid_scheme = this.find("sch-browser") as GUI.tag.GridViewTag;
this.grid_table.resizable = true;
this.grid_scheme.resizable = true;
this.grid_scheme.header = [
{ text: __("Field name") },
{ text: __("Field type") },
];
this.btn_loadmore = this.find("bt-load-next") as GUI.tag.ButtonTag;
this.container = this.find("container") as GUI.tag.TabContainerTag;
this.bindKey("ALT-N", () => {
return this.newFile();
});
this.bindKey("ALT-O", () => {
return this.openFile();
});
this.container.ontabselect = (e) => {
if(this.container.selectedIndex == 0)
{
if(!this.tbl_list.selectedItem)
return;
const schema = this.tbl_list.selectedItem.data.handle.info.schema;
if(!schema)
return;
const data = [];
for(let k in schema.types)
{
data.push([
{ text: k},
{text: schema.types[k]}
])
}
this.grid_scheme.rows = data;
}
}
(this.find("bt-rm-table") as GUI.tag.ButtonTag).onbtclick = async (e) => {
try {
if(!this.filehandle)
{
return this.notify(__("Please open a database file"));
}
if(this.tbl_list.selectedItem == undefined)
{
return;
}
const table = this.tbl_list.selectedItem.data.name;
const ret = await this.openDialog("YesNoDialog", {
title: __("Confirm delete?"),
text: __("Do you realy want to delete table: {0}", table)
});
if(ret)
{
await this.filehandle.remove(table);
this.list_tables();
}
}
catch(e)
{
this.error(__("Unable to execute action table delete: {0}", e.toString()), e);
}
}
(this.find("bt-add-table") as GUI.tag.ButtonTag).onbtclick = async (e) => {
try
{
if(!this.filehandle)
{
return this.notify(__("Please open a database file"));
}
const data = await this.openDialog(new NewTableDialog(), {
title: __("Create new table")
});
this.filehandle.cache = data.schema;
await this.filehandle.write(data.name);
this.list_tables();
}
catch(e)
{
this.error(__("Unable to create table: {0}", e.toString()), e);
}
}
(this.find("btn-edit-record") as GUI.tag.ButtonTag).onbtclick = async (e) => {
this.edit_record();
}
(this.find("btn-add-record") as GUI.tag.ButtonTag).onbtclick = async (e) => {
this.add_record();
}
(this.find("btn-delete-record") as GUI.tag.ButtonTag).onbtclick = async (e) => {
this.remove_record();
}
this.btn_loadmore.onbtclick = async (e) => {
try
{
await this.load_table();
}
catch(e)
{
this.error(__("Error reading table: {0}", e.toString()),e);
}
}
this.tbl_list.onlistselect = async (_) => {
try
{
if(!this.tbl_list.selectedItem)
return;
const handle: API.VFS.BaseFileHandle = this.tbl_list.selectedItem.data.handle;
await handle.onready();
this.last_max_id = 0;
const headers = handle.info.schema.fields.map((e) => {
return {text: e}
});
this.grid_table.header = headers;
this.grid_table.rows = [];
const records = await handle.read({fields:["COUNT(*)"]});
this.n_records = records[0]["COUNT(*)"];
this.btn_loadmore.text = `0/${this.n_records}`;
await this.load_table();
this.container.selectedIndex = 1;
}
catch(e)
{
this.error(__("Error reading table: {0}", e.toString()),e);
}
}
this.grid_table.oncelldbclick = async (e) => {
this.edit_record();
}
this.openFile();
}
private async add_record()
{
try
{
const table_handle = this.tbl_list.selectedItem;
if(!table_handle)
{
return;
}
const file_hd = table_handle.data.handle;
const schema = table_handle.data.handle.info.schema;
const model = {};
for(let k in schema.types)
{
if(["INTEGER", "REAL", "NUMERIC"].includes(schema.types[k]))
{
model[k] = 0;
}
else
{
model[k] = "";
}
}
console.log(model);
const data = await this.openDialog(new RecordEditDialog(), {
title: __("New record"),
schema: schema,
record: model
});
file_hd.cache = data;
await file_hd.write(undefined);
this.n_records += 1;
await this.load_table();
}
catch (e)
{
this.error(__("Error edit/view record: {0}", e.toString()), e);
}
}
private async remove_record()
{
try
{
const cell = this.grid_table.selectedCell;
const row = this.grid_table.selectedRow;
const table_handle = this.tbl_list.selectedItem;
if(!cell || !table_handle)
{
return;
}
const pk_id = cell.data.record[table_handle.data.handle.info.schema.pk];
const ret = await this.openDialog("YesNoDialog", {
title: __("Delete record"),
text: __("Do you realy want to delete record {0}",pk_id)
});
if(!ret)
{
return;
}
const file_hd = `${table_handle.data.handle.path}@${pk_id}`.asFileHandle();
await file_hd.remove();
this.n_records--;
// remove the target row
this.grid_table.delete(row);
this.btn_loadmore.text = `${this.grid_table.rows.length}/${this.n_records}`;
}
catch(e)
{
this.error(__("Error deleting record: {0}", e.toString()),e);
}
}
private async edit_record()
{
try
{
const cell = this.grid_table.selectedCell;
const row = this.grid_table.selectedRow;
const table_handle = this.tbl_list.selectedItem;
if(!cell || !table_handle)
{
return;
}
const data = await this.openDialog(new RecordEditDialog(), {
title: __("View/edit record"),
schema: table_handle.data.handle.info.schema,
record: cell.data.record
});
const pk_id = cell.data.record[table_handle.data.handle.info.schema.pk];
const file_hd = `${table_handle.data.handle.path}@${pk_id}`.asFileHandle();
file_hd.cache = data;
await file_hd.write(undefined);
const row_data = [];
for(let k of file_hd.info.schema.fields)
{
let text:string = data[k];
if(text.length > 100)
{
text = text.substring(0,100);
}
row_data.push({
text: text,
record: data
});
}
row.data = row_data;
}
catch (e)
{
this.error(__("Error edit/view record: {0}", e.toString()), e);
}
}
private async load_table()
{
if(this.grid_table.rows && this.grid_table.rows.length >= this.n_records)
{
return;
}
if(!this.tbl_list.selectedItem)
return;
const handle: API.VFS.BaseFileHandle = this.tbl_list.selectedItem.data.handle;
await handle.onready();
const headers = handle.info.schema.fields.map((e) => {
return {text: e}
});
// read all records
const filter = { where: {}, limit: 10}
filter.where[`${handle.info.schema.pk}\$gt`] = this.last_max_id;
const records = await handle.read(filter);
if(records && records.length > 0)
{
for(let e of records){
const row = [];
if(e.id && e.id > this.last_max_id)
{
this.last_max_id = e.id;
}
for(let v in headers)
{
let text:string = e[headers[v].text];
if(text.length > 100)
{
text = text.substring(0,100);
}
row.push({
text: text,
record: e
});
}
this.grid_table.push(row, false);
}
this.grid_table.scroll_to_bottom();
}
this.btn_loadmore.text = `${this.grid_table.rows.length}/${this.n_records}`;
}
}
SQLiteDBBrowser.dependencies = [
"pkg://SQLiteDB/libsqlite.js"
]
class NewTableDialog extends GUI.BasicDialog {
/**
* Reference to the form container
*
* @private
* @type {HTMLDivElement}
* @memberof NewTableDialog
*/
private container: HTMLDivElement;
/**
* Creates an instance of NewTableDialog.
* @memberof NewTableDialog
*/
constructor() {
super("NewTableDialog");
}
/**
* Main entry point
*
* @memberof NewTableDialog
*/
main(): void {
super.main();
this.container = this.find("container") as HTMLDivElement;
(this.find("btnCancel") as GUI.tag.ButtonTag).onbtclick = (e) => this.quit();
(this.find("btnAdd") as GUI.tag.ButtonTag).onbtclick = (e) => this.addField();
$(this.container)
.css("overflow-y", "auto");
this.addField();
(this.find("btnOk") as GUI.tag.ButtonTag).onbtclick = (e) => {
const input = this.find("txt-tblname") as GUI.tag.InputTag;
if(!input.value || input.value == "")
{
return this.notify(__("Please enter table name"));
}
const tblname = input.value;
const inputs = $("input", this.container) as JQuery<HTMLInputElement>;
const lists = $("afx-list-view", this.container) as JQuery<GUI.tag.ListViewTag>;
if(inputs.length == 0)
{
return this.notify(__("Please define table fields"));
}
let cdata: GenericObject<string> = {};
for (let i = 0; i < inputs.length; i ++) {
const key = inputs[i].value.trim();
if (key === "") {
return this.notify(__("Field name cannot be empty"));
}
if (cdata[key]) {
return this.notify(__("Duplicate field: {0}", key));
}
cdata[key] = lists[i].selectedItem.data.text;
}
if (this.handle)
this.handle({ name: tblname, schema: cdata});
this.quit();
}
}
/**
* Add new input key-value field to the dialog
*
* @private
* @memberof NewTableDialog
*/
private addField(): void {
const div = $("<div>")
.css("display", "flex")
.css("flex-direction", "row")
.appendTo(this.container);
$("<input>")
.attr("type", "text")
.css("flex", "1")
.appendTo(div);
let list = $("<afx-list-view>")
.css("flex", "1")
.appendTo(div)[0] as GUI.tag.ListViewTag;
list.uify(this.observable);
list.dropdown = true;
list.data = [
{text:"TEXT"},
{text:"INTEGER"},
{text:"REAL"},
{text:"NUMERIC"},
];
list.selected = 0;
const btn = $("<afx-button>");
btn[0].uify(undefined);
(btn[0] as GUI.tag.ButtonTag).iconclass = "fa fa-minus";
btn
.on("click", () => {
div.remove();
})
.appendTo(div);
}
}
/**
* Scheme definition
*/
NewTableDialog.scheme = `\
<afx-app-window width='400' height='350'>
<afx-vbox padding = "10">
<afx-input label="__(Table name)" data-id="txt-tblname" data-height="content"></afx-input>
<afx-label text="__(Fields in table:)" data-height="30"></afx-label>
<div data-id="container" style="position:relative;"></div>
<afx-hbox data-height="35">
<afx-button data-id = "btnAdd" iconclass="fa fa-plus" data-width = "content" ></afx-button>
<div style = "text-align: right;">
<afx-button data-id = "btnOk" text = "__(Ok)"></afx-button>
<afx-button data-id = "btnCancel" text = "__(Cancel)"></afx-button>
</div>
</afx-hbox>
</afx-vbox>
</afx-app-window>`;
class RecordEditDialog extends GUI.BasicDialog
{
/**
* Reference to the form container
*
* @private
* @type {HTMLDivElement}
* @memberof RecordEditDialog
*/
private container: HTMLDivElement;
/**
* Creates an instance of RecordEditDialog.
* @memberof RecordEditDialog
*/
constructor() {
super("RecordEditDialog");
}
/**
* Main entry point
*
* @memberof RecordEditDialog
*/
main(): void {
super.main();
this.container = this.find("container") as HTMLDivElement;
(this.find("btnCancel") as GUI.tag.ButtonTag).onbtclick = (e) => this.quit();
$(this.container)
.css("overflow-y", "auto");
if(!this.data || !this.data.schema)
{
throw new Error(__("No data provided for dialog").__());
}
for(let k in this.data.schema.types)
{
const input = $("<afx-input>").appendTo(this.container)[0] as GUI.tag.InputTag;
input.uify(this.observable);
input.label = k;
if(k == this.data.schema.pk)
{
input.disable = true;
}
if(this.data.schema.types[k] == "TEXT")
{
input.verbose = true;
$(input).css("height", "100px");
}
if(this.data.record[k] != undefined)
{
input.value = this.data.record[k];
}
}
(this.find("btnOk") as GUI.tag.ButtonTag).onbtclick = (e) => {
const inputs = $("afx-input", this.container) as JQuery<GUI.tag.InputTag>;
const data = {};
for(let input of inputs)
{
data[input.label.__()] = input.value;
}
if (this.handle)
this.handle(data);
this.quit();
}
}
}
/**
* Scheme definition
*/
RecordEditDialog.scheme = `\
<afx-app-window width='550' height='500'>
<afx-vbox padding = "5">
<div data-id="container" style="row-gap: 5px;"></div>
<afx-hbox data-height="35">
<div></div>
<div data-width="content">
<afx-button data-id = "btnOk" text = "__(Ok)"></afx-button>
<afx-button data-id = "btnCancel" text = "__(Cancel)"></afx-button>
</div>
</afx-hbox>
</afx-vbox>
</afx-app-window>`;
}
}