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from pydantic import BaseModel, Field
from typing import List

class CVInput(BaseModel):
    cathode_name: str
    V_start:   float = Field(..., description="Starting voltage (V)")
    V_switch:  float = Field(..., description="Switch voltage (V)")
    scan_rate: float = Field(..., description="Sweep rate (V/s)")
    dt:        float = Field(..., description="Time step (s)")
    sigma:     float = Field(..., description="Gaussian peak width (V)")
    E0:        float = Field(..., description="Redox mid‑potential (V)")
    Ip:        float = Field(..., description="Peak current magnitude (A)")

    # EIS inputs
    frequencies: List[float] = Field(..., description="Frequencies (Hz)")
    Rs:          float       = Field(..., description="Solution resistance (Ohm)")
    Rct:         float       = Field(..., description="Charge‐transfer resistance (Ohm)")
    Cdl:         float       = Field(..., description="Double‐layer capacitance (F)")
    sigma_w:     float       = Field(..., description="Warburg coefficient (Ω·s^(-1/2))")

    # Q–V derivative inputs
    V_qv:       List[float] = Field(..., description="Voltage array for Q–V curve (monotonic)")
    Q_qv:       List[float] = Field(..., description="Capacity array aligned with V_qv")
    window:     int         = Field(21,    description="Savitzky–Golay window length (odd)")
    poly:       int         = Field(3,     description="Savitzky–Golay polynomial order")