322 lines
11 KiB
Python
322 lines
11 KiB
Python
"""
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Admin CRUD screen for Parts in the AUTOPARTES console application.
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Provides a paginated list view with create (F3), edit (ENTER), and
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delete (F8/Del) operations. Form editing is handled inline with
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field-by-field navigation.
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"""
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from console.core.screens import Screen
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from console.core.keybindings import Key
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from console.config import APP_NAME, VERSION
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from console.utils.formatting import truncate, pad_right
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# Form field definitions for create/edit
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_FIELDS = [
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{'label': 'Numero OEM', 'key': 'oem_part_number', 'width': 20},
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{'label': 'Nombre', 'key': 'name', 'width': 40},
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{'label': 'Nombre (ES)', 'key': 'name_es', 'width': 40},
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{'label': 'Grupo ID', 'key': 'group_id', 'width': 5, 'hint': 'F1=Lista'},
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{'label': 'Descripcion', 'key': 'description', 'width': 50},
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{'label': 'Descripcion ES', 'key': 'description_es', 'width': 50},
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{'label': 'Material', 'key': 'material', 'width': 20},
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{'label': 'Peso (kg)', 'key': 'weight_kg', 'width': 8},
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{'label': 'Descontinuada', 'key': 'is_discontinued', 'width': 1, 'hint': 'S/N'},
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]
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# Footer labels per mode
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_FOOTER_LIST = [
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("F3", "Nuevo"),
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("ENTER", "Editar"),
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("F8", "Eliminar"),
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("PgUp/Dn", "Paginar"),
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("ESC", "Atras"),
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]
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_FOOTER_FORM = [
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("TAB/Down", "Siguiente"),
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("Up", "Anterior"),
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("F9", "Guardar"),
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("ESC", "Cancelar"),
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]
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class AdminPartesScreen(Screen):
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"""Admin CRUD screen for the parts table."""
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def __init__(self):
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super().__init__(name="admin_partes", title="Administracion de Partes")
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self._mode = 'list' # 'list' or 'form'
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self._page = 1
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self._per_page = 15
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self._selected = 0
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self._parts = []
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self._editing_id = None # None = creating, int = editing
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self._focused_field = 0
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self._form_data = {}
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self._dirty = False
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# ------------------------------------------------------------------
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# Data loading
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# ------------------------------------------------------------------
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def _load_parts(self, db):
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"""Load the current page of parts."""
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self._parts = db.get_parts(page=self._page, per_page=self._per_page)
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def _init_form(self, part=None):
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"""Initialise form_data from an existing part or blank."""
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self._form_data = {}
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if part:
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for f in _FIELDS:
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key = f['key']
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val = part.get(key, '')
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if key == 'is_discontinued':
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val = 'S' if val else 'N'
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self._form_data[key] = str(val) if val is not None else ''
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else:
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for f in _FIELDS:
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self._form_data[f['key']] = ''
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self._focused_field = 0
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self._dirty = False
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# ------------------------------------------------------------------
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# Render
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# ------------------------------------------------------------------
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def render(self, context, db, renderer):
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renderer.draw_header(
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f" {APP_NAME} v{VERSION}",
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" ADMINISTRACION DE PARTES ",
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)
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if self._mode == 'list':
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self._render_list(db, renderer)
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else:
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self._render_form(renderer)
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def _render_list(self, db, renderer):
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"""Render the paginated parts list."""
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self._load_parts(db)
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headers = ["NUMERO OEM", "NOMBRE", "GRUPO", "MATERIAL", "DISCONT"]
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widths = [18, 25, 15, 12, 7]
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rows = []
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for p in self._parts:
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disc = "Si" if p.get("is_discontinued") else ""
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rows.append((
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truncate(p.get("oem_part_number", ""), 18),
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truncate(p.get("name_es") or p.get("name", ""), 25),
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truncate(p.get("group_name", ""), 15),
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truncate(p.get("material", "") or "", 12),
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disc,
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))
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renderer.draw_table(
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headers,
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rows,
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widths,
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page_info={
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"page": self._page,
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"total_pages": self._page,
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"total_rows": len(rows),
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},
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selected_row=self._selected,
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)
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renderer.draw_footer(_FOOTER_LIST)
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def _render_form(self, renderer):
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"""Render the create/edit form."""
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title = "EDITAR PARTE" if self._editing_id else "NUEVA PARTE"
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fields = []
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for f in _FIELDS:
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fields.append({
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'label': f['label'],
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'value': self._form_data.get(f['key'], ''),
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'width': f['width'],
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'hint': f.get('hint', ''),
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})
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renderer.draw_form(fields, focused_index=self._focused_field, title=title)
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renderer.draw_footer(_FOOTER_FORM)
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# ------------------------------------------------------------------
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# Key handling
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# ------------------------------------------------------------------
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def on_key(self, key, context, db, renderer, nav):
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if self._mode == 'list':
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return self._handle_list_key(key, context, db, renderer)
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else:
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return self._handle_form_key(key, db, renderer)
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def _handle_list_key(self, key, context, db, renderer):
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"""Handle keys in list mode."""
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# ESC: go back
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if key == Key.ESCAPE:
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return "back"
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# Arrow navigation
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if key == Key.UP:
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if self._selected > 0:
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self._selected -= 1
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return None
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if key == Key.DOWN:
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if self._parts and self._selected < len(self._parts) - 1:
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self._selected += 1
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return None
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# PgDn: next page
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if key == Key.PGDN:
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if len(self._parts) == self._per_page:
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self._page += 1
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self._selected = 0
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return None
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# PgUp: previous page
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if key == Key.PGUP:
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if self._page > 1:
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self._page -= 1
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self._selected = 0
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return None
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# F3: create new part
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if key == Key.F3:
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self._mode = 'form'
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self._editing_id = None
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self._init_form()
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return None
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# ENTER: edit selected part
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if key == Key.ENTER:
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if self._parts and 0 <= self._selected < len(self._parts):
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part_row = self._parts[self._selected]
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part = db.get_part(part_row["id"])
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if part:
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self._editing_id = part["id"]
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self._mode = 'form'
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self._init_form(part)
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return None
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# Number keys 1-9: edit part at that row index
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if 49 <= key <= 57:
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idx = key - 49
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if 0 <= idx < len(self._parts):
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part_row = self._parts[idx]
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part = db.get_part(part_row["id"])
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if part:
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self._editing_id = part["id"]
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self._mode = 'form'
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self._init_form(part)
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return None
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# F8 or DEL: delete selected part
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if key in (Key.F8, 330): # 330 = KEY_DC (Delete)
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if self._parts and 0 <= self._selected < len(self._parts):
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part = self._parts[self._selected]
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name = part.get("name_es") or part.get("name", "")
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oem = part.get("oem_part_number", "")
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confirmed = renderer.show_message(
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f"Eliminar parte?\n{oem} - {name}",
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"confirm",
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)
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if confirmed:
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db.delete_part(part["id"])
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# Adjust selection
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if self._selected >= len(self._parts) - 1:
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self._selected = max(0, self._selected - 1)
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return None
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return None
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def _handle_form_key(self, key, db, renderer):
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"""Handle keys in form mode."""
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# ESC: cancel form (with dirty check)
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if key == Key.ESCAPE:
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if self._dirty:
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confirmed = renderer.show_message(
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"Descartar cambios?", "confirm"
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)
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if not confirmed:
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return None
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self._mode = 'list'
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return None
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# TAB / Down: next field
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if key in (Key.TAB, Key.DOWN):
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if self._focused_field < len(_FIELDS) - 1:
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self._focused_field += 1
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return None
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# Up: previous field
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if key == Key.UP:
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if self._focused_field > 0:
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self._focused_field -= 1
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return None
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# F9: save
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if key == Key.F9:
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return self._save(db, renderer)
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# Backspace: delete last char from current field value
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if key in (Key.BACKSPACE, 8):
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field_key = _FIELDS[self._focused_field]['key']
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val = self._form_data.get(field_key, '')
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if val:
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self._form_data[field_key] = val[:-1]
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self._dirty = True
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return None
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# Printable characters: append to current field
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if 32 <= key <= 126:
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field_def = _FIELDS[self._focused_field]
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field_key = field_def['key']
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val = self._form_data.get(field_key, '')
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if len(val) < field_def['width']:
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self._form_data[field_key] = val + chr(key)
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self._dirty = True
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return None
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return None
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def _save(self, db, renderer):
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"""Validate and save the form data."""
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data = dict(self._form_data)
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# Validate required fields
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if not data.get('oem_part_number', '').strip():
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renderer.show_message("Numero OEM es requerido", "error")
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return None
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if not data.get('name', '').strip():
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renderer.show_message("Nombre es requerido", "error")
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return None
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# Convert types
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gid = data.get('group_id', '').strip()
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data['group_id'] = int(gid) if gid.isdigit() else None
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wkg = data.get('weight_kg', '').strip()
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try:
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data['weight_kg'] = float(wkg) if wkg else None
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except ValueError:
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data['weight_kg'] = None
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disc = data.get('is_discontinued', '').strip().upper()
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data['is_discontinued'] = 1 if disc == 'S' else 0
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try:
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if self._editing_id:
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db.update_part(self._editing_id, data)
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renderer.show_message("Parte actualizada correctamente", "info")
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else:
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db.create_part(data)
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renderer.show_message("Parte creada correctamente", "info")
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except Exception as exc:
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renderer.show_message(f"Error al guardar:\n{exc}", "error")
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return None
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self._mode = 'list'
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self._dirty = False
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return None
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