Input

// SPDX-FileCopyrightText: 2026 Proa Labs, Inc.
// SPDX-License-Identifier: MIT OR Apache-2.0

//! rsjs-controlled input pilot.

use proa_core::{DataLoader, WebContext, WebRenderSync, WriteBuf, WriteError};
use rsjs::Handler;

use super::{InputRecipeProps, InputSize, INPUT_RECIPE};

/// Minimal controlled text input for proving rsjs component composition.
///
/// This intentionally stays narrower than [`super::Input`]: it proves the
/// `value` + `on_change` composition contract without defining how the static
/// input's registration, validation, and reactive-attribute APIs interact with
/// parent-owned controlled state.
///
/// TODO: converge this with [`super::Input`] once those controlled semantics
/// are specified; RSJS v2 already supports server-only dynamic attributes.
pub struct ControlledInput {
    pub value: String,
    pub label: &'static str,
    pub size: InputSize,
    pub on_change: Handler<String>,
}

impl ControlledInput {
    pub fn new(value: String, label: &'static str, on_change: Handler<String>) -> Self {
        Self {
            value,
            label,
            size: InputSize::Default,
            on_change,
        }
    }
}

#[rsjs::rsjs(component, client)]
impl<B: WriteBuf, L: DataLoader> WebRenderSync<L, B> for ControlledInput {
    fn render(self, cx: &mut WebContext<L, B>) -> Result<(), WriteError> {
        let value = rsjs::signal(self.value);
        let style = INPUT_RECIPE.resolve(InputRecipeProps {
            size: Some(self.size),
        });
        let size = style.size().as_str();
        let update_on_input = rsjs::event_handler(|event: rsjs::InputEvent<rsjs::elem::Input>| {
            self.on_change.call(event.current_value());
        });

        proa_macros::html_sync! {
            <label
                data_controlled_input
                data_slot="controlled-input"
                class={INPUT_RECIPE.controlled_root}
            >
                <span
                    data_slot="controlled-input-label"
                    class={INPUT_RECIPE.controlled_label}
                >
                    {self.label}
                </span>
                <input
                    type="text"
                    data_input
                    data_slot="input"
                    data_size={size}
                    class={style}
                    value={value.get()}
                    on_input={update_on_input()}
                />
            </label>
        }
        .render(cx)
    }
}

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

    #[test]
    fn controlled_input_renders() {
        let html = proa_core::render_to_string(ControlledInput {
            value: "Ada".to_string(),
            label: "Name",
            size: InputSize::Default,
            on_change: rsjs::noop_handler(),
        });

        assert!(html.contains("data-controlled-input"));
        assert!(html.contains("data-slot=\"controlled-input\""));
        assert!(html.contains("data-slot=\"controlled-input-label\""));
        assert!(html.contains("Name"));
        assert!(html.contains("value=\"Ada\""));
        assert!(html.contains("rounded-md"));
    }

    #[test]
    fn controlled_input_uses_resolved_recipe_size() {
        let html = proa_core::render_to_string(ControlledInput {
            value: String::new(),
            label: "Name",
            size: InputSize::Lg,
            on_change: rsjs::noop_handler(),
        });

        assert!(html.contains(r#"data-size="lg""#));
        assert!(html.contains(InputSize::Lg.classes()));
    }
}

// SPDX-FileCopyrightText: 2026 Proa Labs, Inc.
// SPDX-License-Identifier: (MIT OR Apache-2.0) AND MIT

//! Input component implementation
use super::recipe::{InputRecipeProps, InputSize, InputType, INPUT_RECIPE};
use crate::free_web::{binding_to_js_attr, JsonAttr};
#[cfg(test)]
use proa_core::ctx::Ctx;
use proa_core::{WebContext, WebRenderSync, WriteBuf};
use proa_ir::{FieldRegistration, ReactiveAttr};
use proa_macros::html_sync;
/// Type-safe Input component.
///
/// A form input field with support for various input types, sizes, and states.
/// Follows the shadcn/ui input design with Tailwind CSS styling.
///
/// # Example
///
/// ```ignore
/// use proa_ui::{Input, InputType, InputSize};
/// use proa_macros::html_sync;
///
/// // Basic usage
/// html_sync! {
///     <div>
///         {Input {
///             input_type: InputType::Email,
///             placeholder: Some("[email protected]"),
///             size: Some(InputSize::Default),
///             ..Input::new()
///         }}
///     </div>
/// }.render(cx);
///
/// // With form registration (React Hook Form style)
/// let form = SignUpForm::form();
/// html_sync! {
///     <div>
///         {Input {
///             registration: Some(form.register_email()),
///             input_type: InputType::Email,
///             placeholder: Some("[email protected]"),
///             aria_invalid: form.field_email().has_error(),
///             ..Input::new()
///         }}
///     </div>
/// }.render(cx);
/// ```
pub struct Input {
    pub size: Option<InputSize>,
    pub input_type: InputType,
    pub name: Option<&'static str>,
    pub value: Option<&'static str>,
    pub placeholder: Option<&'static str>,
    pub disabled: ReactiveAttr<bool>,
    pub required: bool,
    pub readonly: bool,
    pub autofocus: bool,
    pub autocomplete: Option<&'static str>,
    pub min: Option<&'static str>,
    pub max: Option<&'static str>,
    pub minlength: Option<&'static str>,
    pub maxlength: Option<&'static str>,
    pub pattern: Option<&'static str>,
    pub step: Option<&'static str>,
    pub aria_label: Option<&'static str>,
    pub aria_describedby: Option<&'static str>,
    pub aria_invalid: ReactiveAttr<bool>,
    /// Field registration data (from form.register_*)
    pub registration: Option<FieldRegistration>,
    pub class: Option<&'static str>,
    pub id: Option<&'static str>,
}
impl Input {
    /// Create a new input with default settings
    pub const fn new() -> Self {
        Self {
            size: None,
            input_type: InputType::Text,
            name: None,
            value: None,
            placeholder: None,
            disabled: ReactiveAttr::static_value(false),
            required: false,
            readonly: false,
            autofocus: false,
            autocomplete: None,
            min: None,
            max: None,
            minlength: None,
            maxlength: None,
            pattern: None,
            step: None,
            aria_label: None,
            aria_describedby: None,
            aria_invalid: ReactiveAttr::static_value(false),
            registration: None,
            class: None,
            id: None,
        }
    }
}
impl Default for Input {
    fn default() -> Self {
        Self::new()
    }
}
impl<B: WriteBuf, L: ::proa_core::DataLoader> WebRenderSync<L, B> for Input {
    #[inline(always)]
    fn render(
        self,
        cx: &mut WebContext<L, B>,
    ) -> Result<(), proa_core::shared::write_buf::WriteError> {
        let style = INPUT_RECIPE.resolve(InputRecipeProps { size: self.size });
        let is_disabled = self.disabled.default;
        let is_aria_invalid = self.aria_invalid.default;
        let disabled_binding_string = binding_to_js_attr(&self.disabled.binding);
        let aria_invalid_binding_string = binding_to_js_attr(&self.aria_invalid.binding);
        let disabled_binding = disabled_binding_string.as_deref();
        let aria_invalid_binding = aria_invalid_binding_string.as_deref();
        let registration = self.registration.as_ref();
        let rules_attr = JsonAttr(registration.map(|reg| reg.rules.as_slice()));
        let data_field = registration.map(|reg| reg.data_field);
        let name_attr = registration.map(|reg| reg.name).or(self.name);
        let validate_on = registration.map(|reg| match reg.validate_on {
            proa_ir::ValidationTrigger::Blur => "blur",
            proa_ir::ValidationTrigger::Input => "input",
            proa_ir::ValidationTrigger::Change => "change",
            proa_ir::ValidationTrigger::Submit => "submit",
        });
        html_sync! {
            <input
                type={self.input_type.as_str()}
                class={proa_macros::text!("{} {}", style, self.class)}
                id={self.id}
                name={name_attr}
                value={self.value}
                placeholder={self.placeholder}
                disabled={is_disabled}
                required={self.required}
                readonly={self.readonly}
                autofocus={self.autofocus}
                autocomplete={self.autocomplete}
                min={self.min}
                max={self.max}
                minlength={self.minlength}
                maxlength={self.maxlength}
                pattern={self.pattern}
                step={self.step}
                aria-label={self.aria_label}
                aria-describedby={self.aria_describedby}
                aria-invalid={is_aria_invalid}
                data-input
                data-slot="input"
                data-size={style.size().as_str()}
                data-field={data_field}
                data-rules={rules_attr}
                data-validate-on={validate_on}
                data-bind-disabled={disabled_binding}
                data-bind-aria-invalid={aria_invalid_binding}
            />
        }
        .render(cx)
    }
}
/// Convert a Binding to a JavaScript expression string
#[cfg(test)]
mod tests {
    use super::*;
    #[test]
    fn input_renders_with_defaults() {
        let mut out = Vec::new();
        let mut cx = Ctx::with_buffer(&mut out);
        Input::new().render(&mut cx).unwrap();
        let html = String::from_utf8(out).unwrap();
        assert!(html.contains("<input"));
        assert!(html.contains("type=\"text\""));
        assert!(html.contains("class=\""));
        assert!(html.contains("h-9"));
        assert!(html.contains("data-slot=\"input\""));
        assert!(html.contains("data-size=\"default\""));
    }
    #[test]
    fn input_renders_email_type() {
        let mut out = Vec::new();
        let mut cx = Ctx::with_buffer(&mut out);
        Input {
            input_type: InputType::Email,
            placeholder: Some("[email protected]"),
            ..Input::new()
        }
        .render(&mut cx)
        .unwrap();
        let html = String::from_utf8(out).unwrap();
        assert!(html.contains("type=\"email\""));
        assert!(html.contains("placeholder=\"[email protected]\""));
    }
    #[test]
    fn input_applies_sizes() {
        let mut out = Vec::new();
        let mut cx = Ctx::with_buffer(&mut out);
        Input {
            size: Some(InputSize::Lg),
            ..Input::new()
        }
        .render(&mut cx)
        .unwrap();
        let html = String::from_utf8(out).unwrap();
        assert!(html.contains("h-10"));
    }
    #[test]
    fn input_handles_disabled_state() {
        let mut out = Vec::new();
        let mut cx = Ctx::with_buffer(&mut out);
        Input {
            disabled: true.into(),
            ..Input::new()
        }
        .render(&mut cx)
        .unwrap();
        let html = String::from_utf8(out).unwrap();
        assert!(html.contains(" disabled"));
    }
    #[test]
    fn input_handles_required_state() {
        let mut out = Vec::new();
        let mut cx = Ctx::with_buffer(&mut out);
        Input {
            required: true,
            ..Input::new()
        }
        .render(&mut cx)
        .unwrap();
        let html = String::from_utf8(out).unwrap();
        assert!(html.contains(" required"));
    }
    #[test]
    fn input_renders_with_validation_attrs() {
        let mut out = Vec::new();
        let mut cx = Ctx::with_buffer(&mut out);
        Input {
            input_type: InputType::Number,
            min: Some("0"),
            max: Some("100"),
            step: Some("5"),
            ..Input::new()
        }
        .render(&mut cx)
        .unwrap();
        let html = String::from_utf8(out).unwrap();
        assert!(html.contains("type=\"number\""));
        assert!(html.contains("min=\"0\""));
        assert!(html.contains("max=\"100\""));
        assert!(html.contains("step=\"5\""));
    }
    #[test]
    fn input_renders_aria_attributes() {
        let mut out = Vec::new();
        let mut cx = Ctx::with_buffer(&mut out);
        Input {
            aria_label: Some("Email address"),
            aria_describedby: Some("email-help"),
            aria_invalid: true.into(),
            ..Input::new()
        }
        .render(&mut cx)
        .unwrap();
        let html = String::from_utf8(out).unwrap();
        assert!(html.contains("aria-label=\"Email address\""));
        assert!(html.contains("aria-describedby=\"email-help\""));
        assert!(html.contains("aria-invalid"));
    }
    #[test]
    fn input_renders_with_custom_class() {
        let mut out = Vec::new();
        let mut cx = Ctx::with_buffer(&mut out);
        Input {
            class: Some("custom-input"),
            ..Input::new()
        }
        .render(&mut cx)
        .unwrap();
        let html = String::from_utf8(out).unwrap();
        assert!(html.contains("custom-input"));
    }
    #[test]
    fn input_omits_none_attributes() {
        let mut out = Vec::new();
        let mut cx = Ctx::with_buffer(&mut out);
        Input::new().render(&mut cx).unwrap();
        let html = String::from_utf8(out).unwrap();
        assert!(!html.contains("placeholder="));
        assert!(!html.contains("name="));
        assert!(!html.contains("value="));
        assert!(!html.contains("min="));
        assert!(!html.contains("max="));
    }
    #[test]
    fn input_size_is_reasonable() {
        assert!(std::mem::size_of::<Input>() < 512);
        const _INPUT: Input = Input::new();
    }
    #[test]
    fn input_with_reactive_disabled() {
        let mut out = Vec::new();
        let mut cx = Ctx::with_buffer(&mut out);
        let disabled = !ReactiveAttr::form_state(false, "isValid");
        Input {
            disabled,
            ..Input::new()
        }
        .render(&mut cx)
        .unwrap();
        let html = String::from_utf8(out).unwrap();
        assert!(html.contains("disabled"));
        assert!(html.contains("data-bind-disabled"));
        assert!(html.contains("formState.isValid"));
    }
    #[test]
    fn input_with_reactive_aria_invalid() {
        let mut out = Vec::new();
        let mut cx = Ctx::with_buffer(&mut out);
        let aria_invalid = ReactiveAttr::field_state(false, "email", "hasError");
        Input {
            name: Some("email"),
            aria_invalid,
            ..Input::new()
        }
        .render(&mut cx)
        .unwrap();
        let html = String::from_utf8(out).unwrap();
        assert!(html.contains("data-bind-aria-invalid"));
        assert!(html.contains("fields.email.hasError"));
    }
}

// SPDX-FileCopyrightText: 2026 Proa Labs, Inc.
// SPDX-License-Identifier: MIT OR Apache-2.0

use super::Input;
use proa_core::WebContext;
use proa_core::{MdRenderSync, WriteBuf, WriteError};
use proa_macros::md_sync;

/// Input renders its placeholder text in brackets — inputs are interactive,
/// so markdown shows a text indicator.
impl<Loader: ::proa_core::DataLoader, B: WriteBuf> MdRenderSync<Loader, B> for Input {
    fn render_md(self, cx: &mut WebContext<Loader, B>) -> Result<(), WriteError> {
        if let Some(placeholder) = self.placeholder {
            md_sync! { "[" { placeholder } "]" }.render_md(cx)?;
        }
        Ok(())
    }
}

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

    #[test]
    fn input_renders_placeholder() {
        let mut buf = Vec::new();
        let mut cx = WebContext::with_buffer(&mut buf);
        Input {
            placeholder: Some("Enter your email"),
            ..Input::new()
        }
        .render_md(&mut cx)
        .unwrap();
        assert_eq!(String::from_utf8(buf).unwrap(), "[Enter your email]");
    }

    #[test]
    fn input_no_placeholder_is_empty() {
        let mut buf = Vec::new();
        let mut cx = WebContext::with_buffer(&mut buf);
        Input::new().render_md(&mut cx).unwrap();
        assert!(String::from_utf8(buf).unwrap().is_empty());
    }
}

// SPDX-FileCopyrightText: 2026 Proa Labs, Inc.
// SPDX-License-Identifier: MIT OR Apache-2.0

#![allow(clippy::module_inception)]
//! Input component - form text input field
//!
//! The Input component provides a styled text input with support for
//! various input types, sizes, and validation states.

#[cfg(feature = "rsjs")]
mod controlled;
mod input;
mod md;
mod recipe;

// Re-export input types
#[cfg(feature = "rsjs")]
pub use controlled::ControlledInput;
pub use input::Input;

// Re-export recipe types
pub use recipe::{
    input_classes, input_recipe, InputRecipe, InputRecipeProps, InputSize, InputStyle, InputType,
    INPUT_RECIPE,
};

// SPDX-FileCopyrightText: 2026 Proa Labs, Inc.
// SPDX-License-Identifier: (MIT OR Apache-2.0) AND MIT

//! Input recipe - type-safe styling system for Input component
//!
//! Provides size variants and base styling for the Input component.

use crate::tw_join;
use proa_core::shared::attr_value::AttrValue;
use proa_core::{DataLoader, WebContext, WriteBuf, WriteError};

/// Base styles for the input
mod base {
    use super::*;

    pub const INPUT_BASE: &str = tw_join!(
        // Layout
        "flex w-full",
        // Typography
        "text-base md:text-sm",
        // Colors
        "bg-transparent",
        "text-foreground",
        "placeholder:text-muted-foreground",
        // Border (shadcn input style)
        "border border-input",
        "rounded-md",
        // Shadow
        "shadow-xs",
        // Focus visible (shadcn style)
        "focus-visible:outline-hidden",
        "focus-visible:border-ring",
        "focus-visible:ring-ring/50",
        "focus-visible:ring-[3px]",
        // Disabled
        "disabled:cursor-not-allowed",
        "disabled:opacity-50",
        // File input styling
        "file:border-0",
        "file:bg-transparent",
        "file:text-sm",
        "file:font-medium",
        "file:text-foreground",
        // Selection
        "selection:bg-primary",
        "selection:text-primary-foreground",
        // Aria invalid (error state)
        "aria-invalid:border-destructive",
        "aria-invalid:ring-destructive/20",
        "dark:aria-invalid:ring-destructive/40"
    );
}

/// Size variants for the input
#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash, Default, proa_macros::ProaVariant)]
#[variant(name = "size")]
pub enum InputSize {
    Sm,
    #[default]
    Default,
    Lg,
}

impl InputSize {
    /// Get the Tailwind classes for this size
    pub const fn classes(self) -> &'static str {
        match self {
            InputSize::Sm => "h-8 px-2.5 py-1.5 text-xs",
            InputSize::Default => "h-9 px-3 py-1",
            InputSize::Lg => "h-10 px-4 py-2 text-base",
        }
    }

    pub const fn as_str(self) -> &'static str {
        match self {
            Self::Sm => "sm",
            Self::Default => "default",
            Self::Lg => "lg",
        }
    }
}

/// Input type variants (HTML input types)
#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash, Default)]
pub enum InputType {
    #[default]
    Text,
    Email,
    Password,
    Number,
    Tel,
    Url,
    Search,
    Date,
    Time,
    DatetimeLocal,
    File,
    Hidden,
}

impl InputType {
    /// Get the HTML type attribute value
    pub const fn as_str(self) -> &'static str {
        match self {
            InputType::Text => "text",
            InputType::Email => "email",
            InputType::Password => "password",
            InputType::Number => "number",
            InputType::Tel => "tel",
            InputType::Url => "url",
            InputType::Search => "search",
            InputType::Date => "date",
            InputType::Time => "time",
            InputType::DatetimeLocal => "datetime-local",
            InputType::File => "file",
            InputType::Hidden => "hidden",
        }
    }
}

/// Optional inputs accepted by [`InputRecipe::resolve`].
#[derive(Debug, Clone, Copy, PartialEq, Eq, Default)]
pub struct InputRecipeProps {
    pub size: Option<InputSize>,
}

/// Fully typed input recipe with compile-time defaults.
#[derive(Debug, Clone, Copy)]
pub struct InputRecipe {
    base: &'static str,
    /// Wrapper used by the rsjs-controlled input surface.
    pub controlled_root: &'static str,
    /// Label text used by the rsjs-controlled input surface.
    pub controlled_label: &'static str,
    size_default: InputSize,
}

pub const INPUT_CONTROLLED_ROOT: &str = "grid gap-1.5";
pub const INPUT_CONTROLLED_LABEL: &str = "text-sm font-medium";

/// Global input recipe instance
pub const INPUT_RECIPE: InputRecipe = InputRecipe {
    base: base::INPUT_BASE,
    controlled_root: INPUT_CONTROLLED_ROOT,
    controlled_label: INPUT_CONTROLLED_LABEL,
    size_default: InputSize::Default,
};

impl InputRecipe {
    pub const fn resolve(&'static self, props: InputRecipeProps) -> InputStyle {
        let size = match props.size {
            Some(size) => size,
            None => self.size_default,
        };
        InputStyle { recipe: self, size }
    }
}

/// Fully resolved, streamable Input style.
#[must_use]
#[derive(Debug, Clone, Copy)]
pub struct InputStyle {
    recipe: &'static InputRecipe,
    size: InputSize,
}

impl InputStyle {
    pub const fn size(self) -> InputSize {
        self.size
    }
}

impl AttrValue for InputStyle {
    #[inline(always)]
    fn should_render(&self) -> bool {
        true
    }

    #[inline(always)]
    fn render_attr_value<B: WriteBuf, L: DataLoader>(
        &self,
        cx: &mut WebContext<L, B>,
    ) -> Result<(), WriteError> {
        cx.out.extend_static(self.recipe.base.as_bytes())?;
        cx.out.extend_static(b" ")?;
        cx.out.extend_static(self.size.classes().as_bytes())
    }
}

/// Get the global input recipe
pub const fn input_recipe() -> &'static InputRecipe {
    &INPUT_RECIPE
}

/// Compatibility resolver for callers of the former helper.
pub const fn input_classes(size: InputSize) -> InputStyle {
    INPUT_RECIPE.resolve(InputRecipeProps { size: Some(size) })
}

impl crate::variant_spec::ComponentSpec for InputRecipe {
    const NAME: &'static str = "Input";

    fn base_classes(&self) -> &'static str {
        self.base
    }

    fn variant_metadata(&self) -> Vec<crate::variant_spec::VariantMetadata> {
        vec![crate::variant_spec::variant_metadata::<InputSize>()]
    }
}

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

    #[test]
    fn input_recipe_generates_default() {
        let style = input_recipe().resolve(InputRecipeProps::default());
        assert!(input_recipe().base.contains("flex"));
        assert!(input_recipe().base.contains("rounded-md"));
        assert!(input_recipe().controlled_root.contains("grid"));
        assert!(input_recipe().controlled_label.contains("font-medium"));
        assert_eq!(style.size(), InputSize::Default);
        assert!(style.size().classes().contains("h-9"));
    }

    #[test]
    fn input_recipe_supports_sizes() {
        for (size, expected) in [(InputSize::Sm, "h-8"), (InputSize::Lg, "h-10")] {
            let style = input_recipe().resolve(InputRecipeProps { size: Some(size) });
            assert_eq!(style.size(), size);
            assert!(style.size().classes().contains(expected));
        }
    }

    #[test]
    fn input_type_as_str() {
        assert_eq!(InputType::Text.as_str(), "text");
        assert_eq!(InputType::Email.as_str(), "email");
        assert_eq!(InputType::Password.as_str(), "password");
        assert_eq!(InputType::DatetimeLocal.as_str(), "datetime-local");
    }

    #[test]
    fn recipe_is_fully_const() {
        const RECIPE: &InputRecipe = &INPUT_RECIPE;
        const STYLE: InputStyle = RECIPE.resolve(InputRecipeProps {
            size: Some(InputSize::Lg),
        });
        assert_eq!(STYLE.size(), InputSize::Lg);
    }
}