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use super::*;
use std::{fs::create_dir_all, io::Write, path::PathBuf};

/// Run the WASM project on dev-server
#[derive(Clone, Debug, Parser)]
#[clap(name = "serve")]
pub struct Serve {
    #[clap(flatten)]
    pub serve: ConfigOptsServe,
}

impl Serve {
    pub async fn serve(self, bin: Option<PathBuf>) -> Result<()> {
        let mut crate_config = crate::CrateConfig::new(bin)?;

        // change the relase state.
        crate_config.with_hot_reload(self.serve.hot_reload);
        crate_config.with_cross_origin_policy(self.serve.cross_origin_policy);
        crate_config.with_release(self.serve.release);
        crate_config.with_verbose(self.serve.verbose);

        if self.serve.example.is_some() {
            crate_config.as_example(self.serve.example.unwrap());
        }

        if self.serve.profile.is_some() {
            crate_config.set_profile(self.serve.profile.unwrap());
        }

        if self.serve.features.is_some() {
            crate_config.set_features(self.serve.features.unwrap());
        }

        // Subdirectories don't work with the server
        crate_config.dioxus_config.web.app.base_path = None;

        let platform = self
            .serve
            .platform
            .unwrap_or(crate_config.dioxus_config.application.default_platform);

        match platform {
            cfg::Platform::Web => {
                // generate dev-index page
                Serve::regen_dev_page(&crate_config)?;

                // start the develop server
                server::web::startup(self.serve.port, crate_config.clone(), self.serve.open)
                    .await?;
            }
            cfg::Platform::Desktop => {
                server::desktop::startup(crate_config.clone()).await?;
            }
        }
        Ok(())
    }

    pub fn regen_dev_page(crate_config: &CrateConfig) -> Result<()> {
        let serve_html = gen_page(&crate_config.dioxus_config, true);

        let dist_path = crate_config.crate_dir.join(
            crate_config
                .dioxus_config
                .application
                .out_dir
                .clone()
                .unwrap_or_else(|| PathBuf::from("dist")),
        );
        if !dist_path.is_dir() {
            create_dir_all(&dist_path)?;
        }
        let index_path = dist_path.join("index.html");
        let mut file = std::fs::File::create(index_path)?;
        file.write_all(serve_html.as_bytes())?;

        Ok(())
    }
}