import { Theme, SpacingSystem, Typography, Animations } from "../theme/theme.slint";

export struct SelectOption {
    label: string,
    value: string,
}

export component Select {
    in property <[SelectOption]> options: [];
    in-out property <int> selected-index: -1;
    in property <string> placeholder: "Select...";
    in property <bool> enabled: true;
    
    callback selected(int, string);
    
    private property <bool> open: false;
    private property <bool> hovered: false;
    
    min-width: 120px;
    min-height: 36px;
    
    states [
        disabled when !root.enabled: {
            trigger.opacity: 0.5;
        }
    ]
    
    VerticalLayout {
        // Trigger button
        trigger := Rectangle {
            height: 36px;
            background: Theme.colors.background;
            border-radius: SpacingSystem.radius.md;
            border-width: 1px;
            border-color: Theme.colors.input;
            
            drop-shadow-blur: 1px;
            drop-shadow-color: #00000010;
            drop-shadow-offset-y: 1px;
            
            HorizontalLayout {
                padding-left: SpacingSystem.spacing.s3;
                padding-right: SpacingSystem.spacing.s3;
                spacing: SpacingSystem.spacing.s2;
                alignment: space-between;
                
                value-text := Text {
                    text: root.selected-index >= 0 && root.selected-index < root.options.length 
                        ? root.options[root.selected-index].label 
                        : root.placeholder;
                    color: root.selected-index >= 0 
                        ? Theme.colors.foreground 
                        : Theme.colors.muted-foreground;
                    font-size: Typography.sizes.sm;
                    vertical-alignment: center;
                }
                
                chevron := Text {
                    text: "›";
                    color: Theme.colors.muted-foreground;
                    font-size: Typography.sizes.base;
                    font-weight: Typography.weights.bold;
                    vertical-alignment: center;
                    width: 16px;
                    horizontal-alignment: center;
                    
                    rotation-angle: root.open ? -90deg : 90deg;
                    rotation-origin-x: self.width / 2;
                    rotation-origin-y: self.height / 2;
                    
                    animate rotation-angle { duration: Animations.durations.fast; easing: Animations.ease-out; }
                }
            }
            
            touch := TouchArea {
                enabled: root.enabled;
                
                clicked => {
                    root.open = !root.open;
                }
                
                moved => {
                    root.hovered = self.has-hover;
                }
            }
        }
        
        // Dropdown menu
        if root.open: dropdown := Rectangle {
            y: trigger.height + 4px;
            background: Theme.colors.background;
            border-radius: SpacingSystem.radius.md;
            border-width: 1px;
            border-color: Theme.colors.border;
            
            drop-shadow-blur: 8px;
            drop-shadow-color: #00000020;
            drop-shadow-offset-y: 4px;
            
            VerticalLayout {
                padding: SpacingSystem.spacing.s1;
                
                for option[index] in root.options: SelectItem {
                    label: option.label;
                    selected: index == root.selected-index;
                    
                    clicked => {
                        root.selected-index = index;
                        root.selected(index, option.value);
                        root.open = false;
                    }
                }
            }
        }
    }
}

component SelectItem {
    in property <string> label: "";
    in property <bool> selected: false;
    
    callback clicked();
    
    private property <bool> hovered: false;
    
    height: 32px;
    
    states [
        selected when root.selected: {
            container.background: Theme.colors.accent;
        }
        hovered when root.hovered && !root.selected: {
            container.background: Theme.colors.accent.transparentize(0.5);
        }
    ]
    
    container := Rectanglen        background: transparent;
        border-radius: SpacingSystem.radius.sm;
        
        animate background { duration: Animations.durations.fast; }
        
        HorizontalLayout {
            padding-left: SpacingSystem.spacing.s2;
            padding-right: SpacingSystem.spacing.s2;
            spacing: SpacingSystem.spacing.s2;
            
            if root.selected: checkmark := Text {
                text: "✓";
                color: Theme.colors.primary;
                font-size: Typography.sizes.sm;
                font-weight: Typography.weights.bold;
                vertical-alignment: center;
                width: 16px;
            }
            
            Text {
                text: root.label;
                color: Theme.colors.foreground;
                font-size: Typography.sizes.sm;
                vertical-alignment: center;
            }
        }
        
        touch := TouchArea {
            clicked => {
                root.clicked();
            }
            
            moved => {
                root.hovered = self.has-hover;
            }
        }
    }
}