139 lines
4.7 KiB
Python
139 lines
4.7 KiB
Python
from .database import *
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from .s0_base import *
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MIXING_MODEL_MIXED = 'MIXED'
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MIXING_MODEL_2COMP = '2COMP'
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MIXING_MODEL_FIFO = 'FIFO'
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MIXING_MODEL_LIFO = 'LIFO'
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def get_mixing_schema(name: str) -> dict[str, dict[str, Any]]:
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return { 'tank' : {'type': 'str' , 'optional': False , 'readonly': True },
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'model' : {'type': 'str' , 'optional': False , 'readonly': False},
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'value' : {'type': 'float' , 'optional': True , 'readonly': False} }
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def get_mixing(name: str, tank: str) -> dict[str, Any]:
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m = read(name, f"select * from mixing where tank = '{tank}'")
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d = {}
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d['tank'] = str(m['tank'])
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d['model'] = str(m['model'])
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d['value'] = float(m['value']) if m['value'] != None else None
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return d
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class Mixing(object):
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def __init__(self, input: dict[str, Any]) -> None:
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self.type = 'mixing'
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self.tank = str(input['tank'])
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self.model = str(input['model'])
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self.value = float(input['value']) if 'value' in input and input['value'] != None else None
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self.f_type = f"'{self.type}'"
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self.f_tank = f"'{self.tank}'"
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self.f_model = f"'{self.model}'"
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self.f_value = self.value if self.value != None else 'null'
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def as_dict(self) -> dict[str, Any]:
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return { 'type': self.type, 'tank': self.tank, 'model': self.model, 'value': self.value }
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def as_id_dict(self) -> dict[str, Any]:
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return { 'type': self.type, 'tank': self.tank }
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def set_mixing_cmd(name: str, cs: ChangeSet) -> DbChangeSet:
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old = Mixing(get_mixing(name, cs.operations[0]['tank']))
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raw_new = get_mixing(name, cs.operations[0]['tank'])
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new_dict = cs.operations[0]
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schema = get_mixing_schema(name)
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for key, value in schema.items():
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if key in new_dict and not value['readonly']:
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raw_new[key] = new_dict[key]
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new = Mixing(raw_new)
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redo_sql = f"update mixing set model = {new.f_model}, value = {new.f_value} where tank = {new.f_tank};"
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undo_sql = f"update mixing set model = {old.f_model}, value = {old.f_value} where tank = {old.f_tank};"
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redo_cs = g_update_prefix | new.as_dict()
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undo_cs = g_update_prefix | old.as_dict()
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return DbChangeSet(redo_sql, undo_sql, [redo_cs], [undo_cs])
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def set_mixing(name: str, cs: ChangeSet) -> ChangeSet:
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return execute_command(name, set_mixing_cmd(name, cs))
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def add_mixing_cmd(name: str, cs: ChangeSet) -> DbChangeSet:
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new = Mixing(cs.operations[0])
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redo_sql = f"insert into mixing (tank, model, value) values ({new.f_tank}, {new.f_model}, {new.f_value});"
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undo_sql = f"delete from mixing where tank = {new.f_tank};"
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redo_cs = g_add_prefix | new.as_dict()
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undo_cs = g_delete_prefix | new.as_id_dict()
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return DbChangeSet(redo_sql, undo_sql, [redo_cs], [undo_cs])
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def add_mixing(name: str, cs: ChangeSet) -> ChangeSet:
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return execute_command(name, add_mixing_cmd(name, cs))
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def delete_mixing_cmd(name: str, cs: ChangeSet) -> DbChangeSet:
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old = Mixing(get_mixing(name, cs.operations[0]['tank']))
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redo_sql = f"delete from mixing where tank = {old.f_tank};"
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undo_sql = f"insert into mixing (tank, model, value) values ({old.f_tank}, {old.f_model}, {old.f_value});"
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redo_cs = g_delete_prefix | old.as_id_dict()
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undo_cs = g_add_prefix | old.as_dict()
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return DbChangeSet(redo_sql, undo_sql, [redo_cs], [undo_cs])
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def delete_mixing(name: str, cs: ChangeSet) -> ChangeSet:
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return execute_command(name, delete_mixing_cmd(name, cs))
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class InpMixing:
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def __init__(self, line: str) -> None:
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tokens = line.split()
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num = len(tokens)
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has_desc = tokens[-1].startswith(';')
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num_without_desc = (num - 1) if has_desc else num
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self.tank = str(tokens[0])
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self.model = str(tokens[1].upper())
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self.value = float(tokens[3]) if num_without_desc >= 4 else None
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def inp_in_mixing(section: list[str]) -> ChangeSet:
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cs = ChangeSet()
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for s in section:
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# skip comment
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if s.startswith(';'):
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continue
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obj = InpMixing(s)
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cs.append(g_add_prefix | {'type': 'mixing', 'tank': obj.tank, 'model': obj.model, 'value': obj.value})
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return cs
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def inp_out_mixing(name: str) -> list[str]:
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lines = []
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objs = read_all(name, 'select * from mixing')
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for obj in objs:
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tank = obj['tank']
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model = obj['model']
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value = obj['value'] if obj['value'] != None else ''
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lines.append(f'{tank} {model} {value}')
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return lines
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def delete_mixing_by_tank(name: str, tank: str) -> ChangeSet:
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row = try_read(name, f"select * from mixing where tank = '{tank}'")
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if row == None:
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return ChangeSet()
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return ChangeSet(g_delete_prefix | {'type' : 'mixing', 'tank': tank})
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