use chara::CharacterDefinition;
use maud::{Markup, html};

pub fn render_character(name: &str, def: &CharacterDefinition, relative_path: &str) -> Markup {
    html! {
        style { (CHARACTER_CSS) }

        div.customizer-container {
            div.character-container {
                @for layer in &def.layers {
                    img.character-layer
                        id=(format!("{name}-{}-layer", layer.internal_name))
                        src=(layer.entries.first().map(|e| format!("/{relative_path}/{}", e.path)).unwrap_or_default())
                        style=(format!("display: {};",
                            if layer.entries.first().is_some_and(|e| !e.path.is_empty()) {
                                "block"
                            } else {
                                "none"
                            }
                        ));
                }
            }

            div.controls-column {
                @for layer in &def.layers {
                    @if let Some(display_name) = &layer.display_name {
                        div.layer-group {
                            div.layer-title { (display_name) }
                            div.layer-options {
                                @for (i, entry) in layer.entries.iter().enumerate() {
                                    label.option {
                                        input type="radio"
                                            name=(format!("{name}-{}", layer.internal_name))
                                            value=(if entry.path.is_empty() {
                                                String::new()
                                            } else {
                                                format!("/{relative_path}/{}", entry.path)
                                            })
                                            checked[i==0]
                                            onchange=(format!(
                                                "var img=document.getElementById('{name}-{}-layer');{}",
                                                layer.internal_name,
                                                if entry.path.is_empty() {
                                                    "img.style.display='none';"
                                                } else {
                                                    "img.src=this.value;img.style.display='block';"
                                                }
                                            ));
                                        (entry.name)
                                    }
                                }
                            }
                        }
                    }
                }
            }
        }
    }
}

const CHARACTER_CSS: &str = r"
    .customizer-container { display: flex; gap: 20px; margin-top: 20px; }
    .character-container {
        position: relative;
        width: 300px;
        height: 400px;
        border: 2px solid #ddd;
        border-radius: 10px;
        background-color: white;
        flex-shrink: 0;
    }
    .character-layer {
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        object-fit: contain;
    }
    .controls-column {
        flex-grow: 1;
        display: flex;
        flex-direction: column;
        gap: 15px;
    }
    .layer-group {
        background-color: white;
        padding: 15px;
        border-radius: 5px;
        box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    }
    .layer-title {
        font-weight: bold;
        margin-bottom: 10px;
        color: #333;
    }
    .layer-options {
        display: grid;
        grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
        gap: 8px;
    }
    .option {
        display: flex;
        align-items: center;
    }
    .option input {
        margin-right: 8px;
    }
    .back-link {
        display: inline-block;
        margin-bottom: 15px;
        color: #333;
        text-decoration: none;
    }
    .back-link:hover {
        text-decoration: underline;
    }
";