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use crate::sprite;
use openfile;
use std::fs;

#[derive(Clone)]
pub struct map {
    pub chars: Vec<String>,
    pub x: Vec<i64>,
    pub y: Vec<i64>,
}
impl map {
    pub fn to_sprite(&self) -> sprite::sprite {
        sprite::sprite {
            chars: self.chars.clone(),
            x: self.x.clone(),
            y: self.y.clone(),
        }
    }
    pub fn new() -> map {
        map {
            chars: Vec::new(),
            x: Vec::new(),
            y: Vec::new(),
        }
    }
    pub fn find_all_of_X(&self, ch: String) -> Vec<i64> {
        // returns a vector of the position of all instanses of a certain character
        let mut all: Vec<i64> = Vec::new();
        for x in 0..self.chars.len() {
            if self.chars[x] == ch {
                all.push(x as i64);
            }
        }
        all
    }
}
// this parses a text file into a map

pub fn load(filename: &str) -> map {
    let file = openfile::readFileLines(filename); // calls and returns what loadvec does
    loadvec(file)
}
pub fn loadvec(file: Vec<String>) -> map {
    let mut x: Vec<i64> = Vec::new();
    let mut y: Vec<i64> = Vec::new();
    let mut c: Vec<String> = Vec::new();
    let mut yy = 0;
    let mut xx = 0;

    for i in file {
        for ii in i.chars() {
            // ignore the spaces
            if ii != ' ' {
                x.push(xx);
                y.push(yy);
                c.push(ii.to_string())
            }
            xx += 1;
        }
        xx = 0;
        yy += 1;
    }

    map {
        chars: c,
        x: x,
        y: y,
    }
}
pub fn to_map(str: String) -> map {
    //makes a string into a map
    let sttr = str;
    let mut vec_str: Vec<String> = Vec::new();
    let vecsttr: Vec<&str> = sttr.split("\n").collect();
    for x in vecsttr {
        vec_str.push(x.to_string());
    }

    loadvec(vec_str)
}

pub struct folder {
    maps: Vec<map>,
    names: Vec<String>,
    meta: Vec<i8>,
}
impl folder {
    pub fn load_asset_map(&self, name: &str) -> Result<map, String> {
        // find and push the map

        for x in 0..self.names.len() {
            if self.names[x] == name {
                if self.meta[x] == 0 {
                    if self.maps[x].x.len() <= 0 {
                        return Err("Could not be found".to_string());
                    }
                    return Ok(self.maps[x].clone());
                }
            }
        }
        Err("Loading error".to_string())
    }
    pub fn load_asset_sprite(&self, name: &str) -> Result<sprite::sprite, String> {
        // find and push the sprite
        for x in 0..self.names.len() {
            if self.names[x] == name {
                if self.meta[x] == 1 {
                    if self.maps[x].x.len() <= 0 {
                        return Err("Could not be found".to_string());
                    }
                    return Ok(self.maps[x].to_sprite());
                }
            }
        }
        Err("Loading error".to_string())
    }
}

pub fn load_from_folder(directory: String, prefix_map: String, prefix_sprite: String) -> folder {
    let mut folderpr = folder {
        maps: Vec::new(),
        names: Vec::new(),
        meta: Vec::new(),
    };
    for entry in fs::read_dir(directory).expect("Error reading folder") {
        // parses the folder into a folder struct
        let entry = entry
            .expect("error")
            .path()
            .into_os_string()
            .into_string()
            .expect("error");
        let entry_n = entry.split("/").collect::<Vec<&str>>(); //temp parse var
        let entry_n = entry_n[entry_n.len() - 1].split(".").collect::<Vec<&str>>(); // temp parse var

        let entry_name = entry_n[0]; //final name

        if entry.contains(&prefix_map) {
            //finds all map elements
            folderpr.maps.push(load(&entry.clone()));
            folderpr.names.push(entry_name.to_string());
            folderpr.meta.push(0);
        }
        if entry.contains(&prefix_sprite) {
            // finding all sprite elements
            folderpr.maps.push(load(&entry));
            folderpr.names.push(entry_name.to_string());
            folderpr.meta.push(1);
        }
    }
    folderpr
}