Function process_file

pub fn process_file(
    path: String,
    soil: SoilType,
) -> Result<Vec<(NaiveDateTime, f64, f64, f64)>>

Read <path>, compute VWC for soil, return (datetime, raw, temp, vwc).

Errors

This function returns an error if:

• The file at path cannot be opened or read
• CSV parsing fails due to invalid format
• DateTime parsing fails (expects format: “%Y.%m.%d %H:%M”)
• Any field deserialization fails