use stm32f1xx_hal::{delay::Delay, prelude::*, stm32};

use crate::application::App;

pub fn setup(cp: cortex_m::peripheral::Peripherals, dp: stm32::Peripherals) -> App {
    // Take ownership over the raw flash and rcc devices and convert them into the corresponding
    // HAL structs
    let mut flash = dp.FLASH.constrain();

    let mut rcc = dp.RCC.constrain();

    // Freeze the configuration of all the clocks in the system and store the frozen frequencies in
    // `clocks`
    let clocks = rcc
        .cfgr
        .use_hse(8.mhz())
        .sysclk(72.mhz())
        .pclk1(36.mhz())
        .freeze(&mut flash.acr);

    defmt::info!("Clock Setup done");

    // Acquire the GPIOC peripheral
    let mut gpioc = dp.GPIOC.split(&mut rcc.apb2);

    let board_led = gpioc.pc13.into_push_pull_output(&mut gpioc.crh);

    let delay = Delay::new(cp.SYST, clocks);

    App { delay, board_led }
}