Files
sideline/engine/app.py

280 lines
9.1 KiB
Python

"""
Application orchestrator — boot sequence, signal handling, main loop wiring.
"""
import sys
import os
import time
import signal
import atexit
import termios
import tty
from engine import config, render
from engine.terminal import (
RST, G_HI, G_MID, G_DIM, W_DIM, W_GHOST, CLR, CURSOR_OFF, CURSOR_ON, tw,
slow_print, boot_ln,
)
from engine.fetch import fetch_all, fetch_poetry, load_cache, save_cache
from engine.ntfy import NtfyPoller
from engine.mic import MicMonitor
from engine.scroll import stream
TITLE = [
" ███╗ ███╗ █████╗ ██╗███╗ ██╗██╗ ██╗███╗ ██╗███████╗",
" ████╗ ████║██╔══██╗██║████╗ ██║██║ ██║████╗ ██║██╔════╝",
" ██╔████╔██║███████║██║██╔██╗ ██║██║ ██║██╔██╗ ██║█████╗ ",
" ██║╚██╔╝██║██╔══██║██║██║╚██╗██║██║ ██║██║╚██╗██║██╔══╝ ",
" ██║ ╚═╝ ██║██║ ██║██║██║ ╚████║███████╗██║██║ ╚████║███████╗",
" ╚═╝ ╚═╝╚═╝ ╚═╝╚═╝╚═╝ ╚═══╝╚══════╝╚═╝╚═╝ ╚═══╝╚══════╝",
]
def _read_picker_key():
ch = sys.stdin.read(1)
if ch == "\x03":
return "interrupt"
if ch in ("\r", "\n"):
return "enter"
if ch == "\x1b":
c1 = sys.stdin.read(1)
if c1 != "[":
return None
c2 = sys.stdin.read(1)
if c2 == "A":
return "up"
if c2 == "B":
return "down"
return None
if ch in ("k", "K"):
return "up"
if ch in ("j", "J"):
return "down"
if ch in ("q", "Q"):
return "enter"
return None
def _normalize_preview_rows(rows):
"""Trim shared left padding and trailing spaces for stable on-screen previews."""
non_empty = [r for r in rows if r.strip()]
if not non_empty:
return [""]
left_pad = min(len(r) - len(r.lstrip(" ")) for r in non_empty)
out = []
for row in rows:
if left_pad < len(row):
out.append(row[left_pad:].rstrip())
else:
out.append(row.rstrip())
return out
def _draw_font_picker(faces, selected):
w = tw()
h = 24
try:
h = os.get_terminal_size().lines
except Exception:
pass
max_preview_w = max(24, w - 8)
header_h = 6
footer_h = 3
preview_h = max(4, min(config.RENDER_H + 2, max(4, h // 2)))
visible = max(1, h - header_h - preview_h - footer_h)
top = max(0, selected - (visible // 2))
bottom = min(len(faces), top + visible)
top = max(0, bottom - visible)
print(CLR, end="")
print(CURSOR_OFF, end="")
print()
print(f" {G_HI}FONT PICKER{RST}")
print(f" {W_GHOST}{'' * (w - 4)}{RST}")
print(f" {W_DIM}{config.FONT_PATH[:max_preview_w]}{RST}")
print(f" {W_GHOST}↑/↓ move · Enter select · q accept current{RST}")
print()
for pos in range(top, bottom):
face = faces[pos]
active = pos == selected
pointer = "" if active else " "
color = G_HI if active else W_DIM
print(f" {color}{pointer} [{face['index']}] {face['name']}{RST}")
if top > 0:
print(f" {W_GHOST}{top} above{RST}")
if bottom < len(faces):
print(f" {W_GHOST}{len(faces) - bottom} below{RST}")
print()
print(f" {W_GHOST}{'' * (w - 4)}{RST}")
print(f" {W_DIM}Preview: {faces[selected]['name']}{RST}")
preview_rows = faces[selected]["preview_rows"][:preview_h]
for row in preview_rows:
shown = row[:max_preview_w]
print(f" {shown}")
def pick_font_face():
"""Interactive startup picker for selecting a face from a font file."""
if not config.FONT_PICKER:
return
print(CLR, end="")
print(CURSOR_OFF, end="")
print()
print(f" {G_HI}FONT PICKER{RST}")
print(f" {W_GHOST}{'' * (tw() - 4)}{RST}")
print(f" {W_DIM}{config.FONT_PATH}{RST}")
print()
try:
faces = render.list_font_faces(config.FONT_PATH, max_faces=64)
except Exception as exc:
print(f" {G_DIM}> unable to load font file: {exc}{RST}")
print(f" {W_GHOST}> startup aborted (font selection is required){RST}")
time.sleep(1.4)
sys.exit(1)
face_ids = [face["index"] for face in faces]
default = config.FONT_INDEX if config.FONT_INDEX in face_ids else faces[0]["index"]
prepared = []
for face in faces:
idx = face["index"]
name = face["name"]
try:
fnt = render.load_font_face(config.FONT_PATH, idx)
rows = _normalize_preview_rows(render.render_line(name, fnt))
except Exception:
rows = ["(preview unavailable)"]
prepared.append({"index": idx, "name": name, "preview_rows": rows})
selected = next((i for i, f in enumerate(prepared) if f["index"] == default), 0)
if not sys.stdin.isatty():
selected_index = prepared[selected]["index"]
config.set_font_selection(font_index=selected_index)
render.clear_font_cache()
print(f" {G_DIM}> using face {selected_index}{RST}")
time.sleep(0.8)
print(CLR, end="")
print(CURSOR_OFF, end="")
print()
return
fd = sys.stdin.fileno()
old_settings = termios.tcgetattr(fd)
try:
tty.setcbreak(fd)
while True:
_draw_font_picker(prepared, selected)
key = _read_picker_key()
if key == "up":
selected = max(0, selected - 1)
elif key == "down":
selected = min(len(prepared) - 1, selected + 1)
elif key == "enter":
break
elif key == "interrupt":
raise KeyboardInterrupt
finally:
termios.tcsetattr(fd, termios.TCSADRAIN, old_settings)
selected = prepared[selected]["index"]
config.set_font_selection(font_index=selected)
render.clear_font_cache()
print(f" {G_DIM}> using face {selected}{RST}")
time.sleep(0.8)
print(CLR, end="")
print(CURSOR_OFF, end="")
print()
def main():
atexit.register(lambda: print(CURSOR_ON, end="", flush=True))
def handle_sigint(*_):
print(f"\n\n {G_DIM}> SIGNAL LOST{RST}")
print(f" {W_GHOST}> connection terminated{RST}\n")
sys.exit(0)
signal.signal(signal.SIGINT, handle_sigint)
w = tw()
print(CLR, end="")
print(CURSOR_OFF, end="")
pick_font_face()
w = tw()
print()
time.sleep(0.4)
for ln in TITLE:
print(f"{G_HI}{ln}{RST}")
time.sleep(0.07)
print()
_subtitle = "literary consciousness stream" if config.MODE == 'poetry' else "digital consciousness stream"
print(f" {W_DIM}v0.1 · {_subtitle}{RST}")
print(f" {W_GHOST}{'' * (w - 4)}{RST}")
print()
time.sleep(0.4)
cached = load_cache() if '--refresh' not in sys.argv else None
if cached:
items = cached
boot_ln("Cache", f"LOADED [{len(items)} SIGNALS]", True)
elif config.MODE == 'poetry':
slow_print(" > INITIALIZING LITERARY CORPUS...\n")
time.sleep(0.2)
print()
items, linked, failed = fetch_poetry()
print()
print(f" {G_DIM}>{RST} {G_MID}{linked} TEXTS LOADED{RST} {W_GHOST}· {failed} DARK{RST}")
print(f" {G_DIM}>{RST} {G_MID}{len(items)} STANZAS ACQUIRED{RST}")
save_cache(items)
else:
slow_print(" > INITIALIZING FEED ARRAY...\n")
time.sleep(0.2)
print()
items, linked, failed = fetch_all()
print()
print(f" {G_DIM}>{RST} {G_MID}{linked} SOURCES LINKED{RST} {W_GHOST}· {failed} DARK{RST}")
print(f" {G_DIM}>{RST} {G_MID}{len(items)} SIGNALS ACQUIRED{RST}")
save_cache(items)
if not items:
print(f"\n {W_DIM}> NO SIGNAL — check network{RST}")
sys.exit(1)
print()
mic = MicMonitor(threshold_db=config.MIC_THRESHOLD_DB)
mic_ok = mic.start()
if mic.available:
boot_ln("Microphone", "ACTIVE" if mic_ok else "OFFLINE · check System Settings → Privacy → Microphone", bool(mic_ok))
ntfy = NtfyPoller(
config.NTFY_TOPIC,
poll_interval=config.NTFY_POLL_INTERVAL,
display_secs=config.MESSAGE_DISPLAY_SECS,
)
ntfy_ok = ntfy.start()
boot_ln("ntfy", "LISTENING" if ntfy_ok else "OFFLINE", ntfy_ok)
if config.FIREHOSE:
boot_ln("Firehose", "ENGAGED", True)
time.sleep(0.4)
slow_print(" > STREAMING...\n")
time.sleep(0.2)
print(f" {W_GHOST}{'' * (w - 4)}{RST}")
print()
time.sleep(0.4)
stream(items, ntfy, mic)
print()
print(f" {W_GHOST}{'' * (tw() - 4)}{RST}")
print(f" {G_DIM}> {config.HEADLINE_LIMIT} SIGNALS PROCESSED{RST}")
print(f" {W_GHOST}> end of stream{RST}")
print()