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pub mod jswm_con_error;

use ipcon_sys::ipcon::{Ipcon, IPF_SND_IF};
use serde_derive::{Deserialize, Serialize};
use std::ffi::CString;

#[allow(unused)]
use {
    error_stack::{IntoReport, Report, Result, ResultExt},
    jlogger::{jerror, jinfo, jtrace, jwarn, JloggerBuilder},
    log::{error, info, trace, warn},
};

use jswm_con_error::JswmConError;

#[derive(Serialize, Deserialize, Debug)]
pub struct CmdShowRole {
    cmd: String,
    role: String,
}

#[derive(Serialize, Deserialize, Debug)]
pub struct CmdSetRolePos {
    cmd: String,
    role: String,
    x: i32,
    y: i32,
    w: i32,
    h: i32,
}

#[derive(Serialize, Deserialize, Debug)]
pub struct CmdSetRoleRelativePos {
    cmd: String,
    role: String,
    off_x: i32,
    off_y: i32,
    w: i32,
    h: i32,
}

#[derive(Serialize, Deserialize, Debug)]
pub struct CmdSetRoleVisibility {
    cmd: String,
    role: String,
    visible: String,
}

pub enum JswmConCmd {
    CmdShowRole(CmdShowRole),
    CmdSetRolePos(CmdSetRolePos),
    CmdSetRoleRelativePos(CmdSetRoleRelativePos),
    CmdSetRoleVisibility(CmdSetRoleVisibility),
}

pub struct JswmCon {}

impl JswmCon {
    fn send_request(ih: Option<&Ipcon>, cmd: JswmConCmd) -> Result<(), JswmConError> {
        let buf = match cmd {
            JswmConCmd::CmdShowRole(c) => serde_json::to_string(&c),
            JswmConCmd::CmdSetRolePos(c) => serde_json::to_string(&c),
            JswmConCmd::CmdSetRoleRelativePos(c) => serde_json::to_string(&c),
            JswmConCmd::CmdSetRoleVisibility(c) => serde_json::to_string(&c),
        }
        .into_report()
        .change_context(JswmConError::InvalidData)
        .attach_printable("send_request(): invalid command data")?;

        let c_buf = CString::new(buf)
            .into_report()
            .change_context(JswmConError::InvalidData)?;

        if let Some(ih) = ih {
            ih.send_unicast_msg("Jswm", c_buf.as_bytes())
                .change_context(JswmConError::IOError)
        } else {
            let ih = Ipcon::new(None, Some(IPF_SND_IF)).change_context(JswmConError::IpconError)?;
            ih.send_unicast_msg("Jswm", c_buf.as_bytes())
                .change_context(JswmConError::IOError)
        }
    }

    pub fn show_role(ih: Option<&Ipcon>, role: String) -> Result<(), JswmConError> {
        JswmCon::send_request(
            ih,
            JswmConCmd::CmdShowRole(CmdShowRole {
                cmd: String::from("cmdShowRole"),
                role,
            }),
        )
    }

    pub fn set_role_pos(
        ih: Option<&Ipcon>,
        role: String,
        x: i32,
        y: i32,
        w: i32,
        h: i32,
    ) -> Result<(), JswmConError> {
        if w < 0 || h < 0 {
            return Err(JswmConError::InvalidData)
                .into_report()
                .attach_printable("Width/Height can not be negative");
        }

        JswmCon::send_request(
            ih,
            JswmConCmd::CmdSetRolePos(CmdSetRolePos {
                cmd: String::from("cmdSetRolePos"),
                role,
                x,
                y,
                w,
                h,
            }),
        )
    }

    pub fn set_role_relative_pos(
        ih: Option<&Ipcon>,
        role: String,
        off_x: i32,
        off_y: i32,
        w: i32,
        h: i32,
    ) -> Result<(), JswmConError> {
        if w < 0 || h < 0 {
            return Err(JswmConError::InvalidData)
                .into_report()
                .attach_printable("Width/Height can not be negative");
        }

        JswmCon::send_request(
            ih,
            JswmConCmd::CmdSetRoleRelativePos(CmdSetRoleRelativePos {
                cmd: String::from("cmdSetRoleRelativePos"),
                role,
                off_x,
                off_y,
                w,
                h,
            }),
        )
    }

    pub fn set_role_visibility(
        ih: Option<&Ipcon>,
        role: String,
        on_off: bool,
    ) -> Result<(), JswmConError> {
        let visible = if !on_off {
            "off".to_string()
        } else {
            "on".to_string()
        };

        JswmCon::send_request(
            ih,
            JswmConCmd::CmdSetRoleVisibility(CmdSetRoleVisibility {
                cmd: String::from("cmdSetRoleVisibility"),
                role,
                visible,
            }),
        )
    }
}