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use ratatui::Frame;
use ratatui::layout::{Constraint, Direction, Layout, Rect};
use ratatui::style::{Color, Modifier, Style};
use ratatui::text::{Line, Span};
use ratatui::widgets::{Block, Borders, List, ListItem, ListState, Paragraph};
use crate::ui::state::{AppState, ConnStatus, Focus, LeafKind, TreeNode};
use crate::ui::theme::Theme;
pub fn render(frame: &mut Frame, state: &mut AppState, theme: &Theme, area: Rect) {
let is_focused = state.focus == Focus::Sidebar;
let border_style = theme.border_style(is_focused, &state.mode);
let (tree_area, search_area) = if state.tree_state.search_active || state.group_creating {
let chunks = Layout::default()
.direction(Direction::Vertical)
.constraints([Constraint::Min(3), Constraint::Length(1)])
.split(area);
(chunks[0], Some(chunks[1]))
} else {
(area, None)
};
let title = " Explorer ".to_string();
let block = Block::default()
.title(title)
.borders(Borders::ALL)
.border_style(border_style);
let inner_height = tree_area.height.saturating_sub(2) as usize;
state.tree_state.visible_height = inner_height.max(1);
let visible = state.visible_tree();
let offset = state.tree_state.offset;
let cursor = state.tree_state.cursor;
let items: Vec<ListItem> = visible
.iter()
.enumerate()
.skip(offset)
.take(inner_height)
.map(|(vis_idx, (_, node))| {
let depth = node.depth();
let indent = " ".repeat(depth);
let is_selected = vis_idx == cursor;
let is_search_match = state.tree_state.search_active
&& state.tree_state.search_matches.contains(&vis_idx);
let row_bg = if is_selected {
theme.tree_selected_bg
} else if is_search_match {
Color::Rgb(60, 50, 20)
} else {
Color::Reset
};
let line = match node {
TreeNode::Group { expanded, name, .. } => {
// Inline rename mode
if state
.group_renaming
.as_ref()
.is_some_and(|rn| rn == name)
{
let rename_line =
format!("{indent}■ {}█", state.group_rename_buf);
Line::from(Span::styled(
rename_line,
Style::default()
.fg(theme.conn_connecting)
.bg(row_bg)
.add_modifier(Modifier::BOLD),
))
} else {
let icon = if *expanded { "▼ " } else { "▶ " };
let name_fg = if is_selected {
theme.tree_selected_fg
} else {
theme.dim
};
Line::from(vec![
Span::styled(indent.clone(), Style::default().bg(row_bg)),
Span::styled(
icon,
Style::default()
.fg(if *expanded {
theme.tree_expanded
} else {
theme.tree_collapsed
})
.bg(row_bg),
),
Span::styled(
"■ ",
Style::default().fg(theme.accent).bg(row_bg),
),
Span::styled(
name.as_str(),
Style::default()
.fg(name_fg)
.bg(row_bg)
.add_modifier(Modifier::BOLD),
),
])
}
}
TreeNode::Connection {
expanded,
name,
status,
..
} => {
let icon = if *expanded { "▼ " } else { "▶ " };
let (status_icon, status_color) = match status {
ConnStatus::Connected => ("● ", theme.conn_connected),
ConnStatus::Disconnected => ("○ ", theme.dim),
ConnStatus::Connecting => ("◐ ", theme.conn_connecting),
ConnStatus::Failed => ("✗ ", theme.error_fg),
};
let name_fg = if is_selected {
theme.tree_selected_fg
} else {
theme.tree_connection
};
Line::from(vec![
Span::styled(indent.clone(), Style::default().bg(row_bg)),
Span::styled(icon, Style::default().fg(theme.tree_expanded).bg(row_bg)),
Span::styled(status_icon, Style::default().fg(status_color).bg(row_bg)),
Span::styled(
name.as_str(),
Style::default()
.fg(name_fg)
.bg(row_bg)
.add_modifier(Modifier::BOLD),
),
])
}
TreeNode::Schema { expanded, name, .. } => {
let icon = if *expanded { "▼ " } else { "▶ " };
let name_fg = if is_selected {
theme.tree_selected_fg
} else {
theme.tree_schema
};
Line::from(vec![
Span::styled(indent.clone(), Style::default().bg(row_bg)),
Span::styled(
icon,
Style::default()
.fg(if *expanded {
theme.tree_expanded
} else {
theme.tree_collapsed
})
.bg(row_bg),
),
Span::styled("◈ ", Style::default().fg(theme.tree_schema).bg(row_bg)),
Span::styled(
name.as_str(),
Style::default()
.fg(name_fg)
.bg(row_bg)
.add_modifier(Modifier::BOLD),
),
])
}
TreeNode::Category {
expanded, label, ..
} => {
let icon = if *expanded { "▼ " } else { "▶ " };
let label_fg = if is_selected {
theme.tree_selected_fg
} else {
theme.tree_category
};
Line::from(vec![
Span::styled(indent.clone(), Style::default().bg(row_bg)),
Span::styled(
icon,
Style::default()
.fg(if *expanded {
theme.tree_expanded
} else {
theme.tree_collapsed
})
.bg(row_bg),
),
Span::styled(
label.as_str(),
Style::default()
.fg(label_fg)
.bg(row_bg)
.add_modifier(Modifier::BOLD),
),
])
}
TreeNode::Leaf {
name, kind, valid, ..
} => {
let (icon, base_color) = match kind {
LeafKind::Table => ("T ", theme.tree_table),
LeafKind::View => ("V ", theme.tree_view),
LeafKind::Package => ("P ", theme.tree_package),
LeafKind::Procedure => ("ƒ ", theme.tree_procedure),
LeafKind::Function => ("λ ", theme.tree_function),
};
let (name_color, icon_color) = if !valid {
(Color::Rgb(220, 80, 80), Color::Rgb(220, 80, 80))
} else if is_selected {
(theme.tree_selected_fg, base_color)
} else {
(base_color, base_color)
};
let invalid_marker = if !valid {
Span::styled(
" ✗",
Style::default()
.fg(Color::Rgb(220, 80, 80))
.bg(row_bg)
.add_modifier(Modifier::BOLD),
)
} else {
Span::styled("", Style::default().bg(row_bg))
};
Line::from(vec![
Span::styled(indent.clone(), Style::default().bg(row_bg)),
Span::styled(
icon,
Style::default()
.fg(icon_color)
.bg(row_bg)
.add_modifier(Modifier::BOLD),
),
Span::styled(name.as_str(), Style::default().fg(name_color).bg(row_bg)),
invalid_marker,
])
}
};
// Determine connection name for this node (for scoped filter hints)
let conn_name_for_hint = match node {
TreeNode::Connection { name, .. } => name.as_str(),
_ => {
// Walk backwards in visible tree to find parent connection
visible[..=vis_idx]
.iter()
.rev()
.find_map(|(_, n)| match n {
TreeNode::Connection { name, .. } => Some(name.as_str()),
_ => None,
})
.unwrap_or("")
}
};
// Append filter hint as suffix on the same line
let line = if let Some(hint_msg) = state.filter_hint_for(node, conn_name_for_hint) {
let mut spans = line.spans;
spans.push(Span::styled(
format!(" {hint_msg}"),
Style::default()
.fg(theme.dim)
.bg(row_bg)
.add_modifier(Modifier::ITALIC),
));
Line::from(spans)
} else {
line
};
ListItem::new(line)
})
.collect();
let selected_in_view = if cursor >= offset && cursor < offset + inner_height {
Some(cursor - offset)
} else {
None
};
let mut list_state = ListState::default();
list_state.select(selected_in_view);
// No highlight_style on List - we handle it manually per-span above
let list = List::new(items).block(block).highlight_symbol("▸ ");
frame.render_stateful_widget(list, tree_area, &mut list_state);
if state.group_creating {
if let Some(rect) = search_area {
let line = Line::from(vec![
Span::styled(
"New group: ",
Style::default()
.fg(theme.accent)
.add_modifier(Modifier::BOLD),
),
Span::raw(state.group_rename_buf.as_str()),
Span::styled("█", Style::default().fg(theme.accent)),
]);
let bar = Paragraph::new(line).style(Style::default().bg(theme.status_bg));
frame.render_widget(bar, rect);
}
return;
}
if let Some(search_rect) = search_area {
let query = &state.tree_state.search_query;
let match_count = state.tree_state.search_matches.len();
let match_info = if query.is_empty() {
String::new()
} else {
format!(" ({match_count} matches)")
};
let line = Line::from(vec![
Span::styled(
"/",
Style::default()
.fg(theme.accent)
.add_modifier(Modifier::BOLD),
),
Span::raw(query.as_str()),
Span::styled("█", Style::default().fg(theme.accent)),
Span::styled(match_info, Style::default().fg(theme.dim)),
]);
let bar = Paragraph::new(line).style(Style::default().bg(theme.status_bg));
frame.render_widget(bar, search_rect);
}
}