wavekat-cli 0.0.7

use anyhow::Result;
use clap::{Args as ClapArgs, Subcommand};
use serde::{Deserialize, Serialize};

use crate::client::Client;
use crate::style;

#[derive(Subcommand)]
pub enum Cmd {
    /// List projects you can see (`GET /api/projects`)
    List(ListArgs),
    /// Show a single project (`GET /api/projects/{id}`)
    Show(ShowArgs),
}

#[derive(ClapArgs)]
pub struct ListArgs {
    #[arg(long, default_value_t = 1)]
    page: u32,
    #[arg(long, default_value_t = 20)]
    page_size: u32,
    /// Print raw JSON instead of a table
    #[arg(long)]
    json: bool,
}

#[derive(ClapArgs)]
pub struct ShowArgs {
    /// Project id (uuid)
    project_id: String,
    /// Print raw JSON instead of a summary
    #[arg(long)]
    json: bool,
}

#[derive(Deserialize)]
#[serde(rename_all = "camelCase")]
struct Project {
    id: String,
    name: String,
    created_at: String,
}

#[derive(Deserialize)]
#[serde(rename_all = "camelCase")]
struct ListResponse {
    projects: Vec<Project>,
    page: u32,
    page_size: u32,
    total: u32,
    total_pages: u32,
}

#[derive(Serialize)]
#[serde(rename_all = "camelCase")]
struct ListQuery {
    page: u32,
    page_size: u32,
}

pub async fn run(cmd: Cmd) -> Result<()> {
    let client = Client::from_config()?;
    match cmd {
        Cmd::List(args) => list(&client, args).await,
        Cmd::Show(args) => show(&client, args).await,
    }
}

async fn list(client: &Client, args: ListArgs) -> Result<()> {
    let query = ListQuery {
        page: args.page,
        page_size: args.page_size,
    };
    if args.json {
        let v: serde_json::Value = client.get_json_query("/api/projects", &query).await?;
        println!("{}", serde_json::to_string_pretty(&v)?);
        return Ok(());
    }
    let resp: ListResponse = client.get_json_query("/api/projects", &query).await?;
    if resp.projects.is_empty() {
        println!("No projects.");
        return Ok(());
    }
    println!(
        "{}  {}  {}",
        style::bold(&format!("{:<38}", "ID")),
        style::bold(&format!("{:<28}", "NAME")),
        style::bold("CREATED"),
    );
    for p in &resp.projects {
        // Pad to fixed widths in raw bytes first, then style — ANSI escape
        // codes count as bytes (not columns) inside Rust's `{:<N}`, so
        // styling has to wrap an already-padded cell or columns drift.
        let name = truncate(&p.name, 28);
        println!(
            "{}  {name:<28}  {}",
            style::dim(&format!("{:<38}", p.id)),
            style::dim(&p.created_at),
        );
    }
    println!(
        "\n{}",
        style::dim(&format!(
            "Page {}/{} · {} project(s) total · pageSize {}",
            resp.page, resp.total_pages, resp.total, resp.page_size
        )),
    );
    if resp.page < resp.total_pages {
        println!(
            "{} wk projects list --page {}{}",
            style::dim("Next:"),
            resp.page + 1,
            if resp.page_size != 20 {
                format!(" --page-size {}", resp.page_size)
            } else {
                String::new()
            },
        );
    }
    Ok(())
}

async fn show(client: &Client, args: ShowArgs) -> Result<()> {
    let path = format!("/api/projects/{}", args.project_id);
    let v: serde_json::Value = client.get_json(&path).await?;
    if args.json {
        println!("{}", serde_json::to_string_pretty(&v)?);
        return Ok(());
    }
    let s = |k: &str| v.get(k).and_then(|x| x.as_str()).unwrap_or("-").to_string();
    let label = |s: &str| style::dim(&format!("{s:<13}"));
    println!("{} {}", label("id:"), style::dim(&s("id")));
    println!("{} {}", label("name:"), style::bold(&s("name")));
    if let Some(desc) = v.get("description").and_then(|x| x.as_str()) {
        if !desc.trim().is_empty() {
            println!("{} {desc}", label("description:"));
        }
    }
    println!("{} {}", label("created:"), s("createdAt"));
    println!("{} {}", label("updated:"), s("updatedAt"));
    if let Some(ls) = v.get("activeLabelSetId").and_then(|x| x.as_str()) {
        println!("{} {ls}", label("label set:"));
    }
    if let Some(role) = v.get("role").and_then(|x| x.as_str()) {
        println!("{} {}", label("your role:"), style::cyan(role));
    }
    Ok(())
}

fn truncate(s: &str, n: usize) -> String {
    if s.chars().count() > n {
        let mut out: String = s.chars().take(n.saturating_sub(1)).collect();
        out.push('…');
        out
    } else {
        s.to_string()
    }
}

#[cfg(test)]
mod tests {
    use super::*;

    #[test]
    fn truncate_passes_short_strings() {
        assert_eq!(truncate("hi", 28), "hi");
        assert_eq!(truncate("", 5), "");
    }

    #[test]
    fn truncate_clips_long_strings_with_ellipsis() {
        let out = truncate("abcdefghij", 5);
        assert_eq!(out.chars().count(), 5);
        assert!(out.ends_with('…'));
        assert_eq!(out, "abcd…");
    }
}