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"use strict"
const blessed = require('blessed');
function Terminal(pico)
{
this.pico = pico
this._screen = blessed.screen();
this._grid = blessed.box({ top: 1, left: 2, height: '100%-3', width: pico.w, keys: true, mouse: true, style: { fg: '#efefef' } });
this._output = blessed.box({ bottom: 2, left: 2, height: 1, width: '100%-2', style: { fg: '#fff' } });
this._inspector = blessed.box({ bottom: 1, left: 2, height: 1, width: '100%-4', style: { fg: '#efefef' } });
this.is_paused = false
this.cursor = {
x: 0, y: 0,
move: function (x, y) {
this.x = clamp(this.x+x, 0, pico.w - 1)
this.y = clamp(this.y-y, 0, pico.h - 1)
},
insert: function (g) {
if(!pico.is_allowed(g)){ console.log(`#${g} not allowed`); return; }
pico.add(this.x, this.y, g)
},
inspect: function () {
const g = pico.glyph_at(this.x, this.y)
return pico.docs[g] ? pico.docs[g] : '>'
}
}
this.install = function()
{
this._screen.append(this._grid);
this._screen.append(this._output);
this._screen.append(this._inspector);
}
this.start = function()
{
this.pico.start()
this._screen.key(['escape', 'q', 'C-c'], (ch, key) => (process.exit(0)));
this._screen.key(['up'], (ch, key) => { this.cursor.move(0,1); this.update(); });
this._screen.key(['down'], (ch, key) => { this.cursor.move(0,-1); this.update(); });
this._screen.key(['right'], (ch, key) => { this.cursor.move(1,0); this.update(); });
this._screen.key(['left'], (ch, key) => { this.cursor.move(-1,0); this.update(); });
this._screen.on('keypress', (key)=>{
if(!key){ return; }
const g = key.substr(0,1)
if(!this.pico.is_allowed(g)){ console.log(`#${g} not allowed`); return; }
this.cursor.insert(g)
});
this.update()
setInterval(() => { this.run() }, 200)
}
this.run = function()
{
if (this.is_paused && !force) { return }
this.pico.run()
this.f += 1
this.update()
}
this.pause = function () {
this.is_paused = !this.is_paused
}
this.add_cursor = function(s)
{
const index = this.pico.index_at(this.cursor.x, this.cursor.y)
return s.substr(0, index) + "@" + s.substr(index + 1)
}
this.update = function(sight)
{
const s = this.pico.s
this._grid.setContent(`${this.add_cursor(s)}`)
this._inspector.setContent(`${this.cursor.inspect()}`)
this._screen.render();
}
// Events
this.on_submit = function(text)
{
this.query(text);
this._icon.setContent(":");
this._input.clearValue();
this._input.focus();
this._screen.render();
}
function clamp (v, min, max) { return v < min ? min : v > max ? max : v }
}
module.exports = Terminal
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