use crate::modes::common::format_size;
use anyhow::anyhow;
use clap::error::ErrorKind;
use clap::Command;
use std::path::PathBuf;
use std::str::FromStr;
use crate::db::Item;

use crate::compression_engine::{get_compression_engine, CompressionType};
use crate::db::{get_item, get_item_last, get_item_matching};
use crate::modes::common::get_format_box_chars_no_border_line_separator;
use chrono::prelude::*;
use is_terminal::IsTerminal;
use prettytable::format;
use prettytable::{Attr, Cell, Row, Table};

pub fn mode_info(
    cmd: &mut Command,
    args: crate::Args,
    ids: &mut Vec<i64>,
    tags: &mut Vec<String>,
    conn: &mut rusqlite::Connection,
    data_path: PathBuf,
) -> anyhow::Result<()> {
    if !ids.is_empty() && !tags.is_empty() {
        cmd.error(ErrorKind::InvalidValue, "Both ID and tags given, you must supply exactly one ID or atleast one tag when using --info").exit();
    } else if ids.len() > 1 {
        cmd.error(ErrorKind::InvalidValue, "More than one ID given, you must supply exactly one ID or atleast one tag when using --info").exit();
    }

    let mut meta: std::collections::HashMap<String, String> = std::collections::HashMap::new();
    for item in args.item.meta.iter() {
        let item = item.clone();
        meta.insert(item.key, item.value);
    }

    let item_maybe = match tags.is_empty() && meta.is_empty() {
        true => match ids.iter().next() {
            Some(item_id) => get_item(conn, *item_id)?,
            None => get_item_last(conn)?,
        },
        false => get_item_matching(conn, tags, &meta)?,
    };

    match item_maybe {
        Some(item) => show_item(item, args, conn, data_path),
        None => Err(anyhow!("Unable to find matching item in database")),
    }
}

fn show_item(
    item: Item,
    args: crate::Args,
    conn: &mut rusqlite::Connection,
    data_path: PathBuf,
) -> anyhow::Result<()> {
    let item_id = item.id.unwrap();

    let item_tags: Vec<String> = crate::db::get_item_tags(conn, &item)?
        .into_iter()
        .map(|x| x.name)
        .collect();

    let mut table = Table::new();
    if std::io::stdout().is_terminal() {
        table.set_format(get_format_box_chars_no_border_line_separator());
    } else {
        table.set_format(*format::consts::FORMAT_NO_BORDER_LINE_SEPARATOR);
    }

    table.add_row(Row::new(vec![
        Cell::new("ID").with_style(Attr::Bold),
        Cell::new(&item_id.to_string()),
    ]));

    let ts_cell = Cell::new(&item.ts.with_timezone(&Local).format("%F %T %Z").to_string());

    table.add_row(Row::new(vec![
        Cell::new("Timestamp").with_style(Attr::Bold),
        ts_cell,
    ]));

    let mut item_path = data_path.clone();
    item_path.push(item.id.unwrap().to_string());

    table.add_row(Row::new(vec![
        Cell::new("Path").with_style(Attr::Bold),
        Cell::new(item_path.to_str().expect("Unable to get item path")),
    ]));

    let size_cell = match item.size {
        Some(size) => Cell::new(format_size(size as u64, args.options.human_readable).as_str()),
        None => Cell::new("Missing")
            .with_style(Attr::ForegroundColor(prettytable::color::RED))
            .with_style(Attr::Bold),
    };

    table.add_row(Row::new(vec![
        Cell::new("Stream Size").with_style(Attr::Bold),
        size_cell,
    ]));

    let compression_type = CompressionType::from_str(&item.compression)
        .map_err(|e| anyhow!("Failed to parse compression type: {}", e))?;

    table.add_row(Row::new(vec![
        Cell::new("Compression").with_style(Attr::Bold),
        Cell::new(&compression_type.to_string()),
    ]));

    let file_size_cell = match item_path.metadata() {
        Ok(metadata) => {
            Cell::new(format_size(metadata.len(), args.options.human_readable).as_str())
        }
        Err(_) => Cell::new("Missing")
            .with_style(Attr::ForegroundColor(prettytable::color::RED))
            .with_style(Attr::Bold),
    };

    table.add_row(Row::new(vec![
        Cell::new("File Size").with_style(Attr::Bold),
        file_size_cell,
    ]));

    let file_magic_cell = match &compression_type {
        Ok(compression_type) => {
            let compression_engine =
                get_compression_engine(compression_type.clone()).expect("Unable to get compression engine");
            let magic = compression_engine.magic(item_path.clone());

            match magic {
                Ok(magic) => Cell::new(magic.as_str()),
                Err(e) => Cell::new(&e.to_string())
                    .with_style(Attr::ForegroundColor(prettytable::color::RED))
                    .with_style(Attr::Bold),
            }
        },
        Err(e) => Cell::new(&e.to_string())
            .with_style(Attr::ForegroundColor(prettytable::color::RED))
            .with_style(Attr::Bold),
    };

    table.add_row(Row::new(vec![
        Cell::new("File Magic").with_style(Attr::Bold),
        file_magic_cell,
    ]));

    table.add_row(Row::new(vec![
        Cell::new("Tags").with_style(Attr::Bold),
        Cell::new(&item_tags.join(" ")),
    ]));

    let digest_type = item.digest_type.clone();
    match digest_type {
        Some(digest_type) => {
            table.add_row(Row::new(vec![
                Cell::new("Digest Type").with_style(Attr::Bold),
                Cell::new(&digest_type),
            ]));
        },
        None => {}
    }

    let digest_value = item.digest_value.clone();
    match digest_value {
        Some(digest_value) => {
            table.add_row(Row::new(vec![
                Cell::new("Digest Value").with_style(Attr::Bold),
                Cell::new(&digest_value),
            ]));
        },
        None => {}
    }

    for meta in crate::db::get_item_meta(conn, &item)? {
        let meta_name = format!("Meta: {}", &meta.name);
        table.add_row(Row::new(vec![
            Cell::new(meta_name.as_str()).with_style(Attr::Bold),
            Cell::new(&meta.value),
        ]));
    }

    table.printstd();
    Ok(())
}