rearrange code, file and folder structure

1 files changed, 0 insertions, 646 deletions

diff --git a/src/frontend/ui.rs b/src/frontend/ui.rs
deleted file mode 100644
index 45ccd60..0000000
--- a/src/frontend/ui.rs
+++ /dev/null
@@ -1,646 +0,0 @@
-// bibiman - a TUI for managing BibLaTeX databases
-// Copyright (C) 2024  lukeflo
-//
-// This program is free software: you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-//
-// This program is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-// GNU General Public License for more details.
-//
-// You should have received a copy of the GNU General Public License
-// along with this program.  If not, see <https://www.gnu.org/licenses/>.
-/////
-
-use color_eyre::owo_colors::OwoColorize;
-use itertools::Itertools;
-use ratatui::{
-    buffer::Buffer,
-    layout::{Alignment, Constraint, Layout, Rect},
-    style::{Color, Modifier, Style, Stylize},
-    symbols,
-    text::{Line, Span, Text},
-    widgets::{
-        block::{Position, Title},
-        Block, Borders, Cell, HighlightSpacing, List, ListItem, Padding, Paragraph, Row, Scrollbar,
-        ScrollbarOrientation, StatefulWidget, Table, Widget, Wrap,
-    },
-};
-
-use crate::frontend::{app::App, keywords::TagListItem};
-
-use super::{
-    app::{CurrentArea, FormerArea},
-    entries::EntryTableColumn,
-    keywords,
-};
-
-const MAIN_BLUE_COLOR: Color = Color::Indexed(39);
-// const MAIN_PURPLE_COLOR: Color = Color::Indexed(129);
-const BOX_SELECTED_BOX_STYLE: Style = Style::new().fg(TEXT_FG_COLOR);
-const BOX_SELECTED_TITLE_STYLE: Style = Style::new().fg(TEXT_FG_COLOR).add_modifier(Modifier::BOLD);
-const BOX_UNSELECTED_BORDER_STYLE: Style = Style::new().fg(TEXT_UNSELECTED_FG_COLOR);
-const BOX_UNSELECTED_TITLE_STYLE: Style = Style::new()
-    .fg(TEXT_UNSELECTED_FG_COLOR)
-    .add_modifier(Modifier::BOLD);
-const NORMAL_ROW_BG: Color = Color::Black;
-const ALT_ROW_BG_COLOR: Color = Color::Indexed(234);
-const SELECTED_STYLE: Style = Style::new()
-    .add_modifier(Modifier::BOLD)
-    .add_modifier(Modifier::REVERSED);
-const TEXT_FG_COLOR: Color = Color::Indexed(252);
-const TEXT_UNSELECTED_FG_COLOR: Color = Color::Indexed(245);
-const SORTED_ENTRIES: &str = "▼";
-const SORTED_ENTRIES_REVERSED: &str = "▲";
-const HEADER_FOOTER_BG: Color = Color::Indexed(235);
-
-const SCROLLBAR_UPPER_CORNER: Option<&str> = Some("┓");
-const SCROLLBAR_LOWER_CORNER: Option<&str> = Some("┛");
-
-pub const fn alternate_colors(i: usize) -> Color {
-    if i % 2 == 0 {
-        NORMAL_ROW_BG
-    } else {
-        ALT_ROW_BG_COLOR
-    }
-}
-
-impl From<&TagListItem> for ListItem<'_> {
-    fn from(value: &TagListItem) -> Self {
-        let line = Line::styled(format!("{}", value.keyword), TEXT_FG_COLOR);
-        ListItem::new(line)
-    }
-}
-
-impl Widget for &mut App {
-    fn render(self, area: Rect, buf: &mut Buffer) {
-        let [header_area, main_area, footer_area] = Layout::vertical([
-            Constraint::Length(1),
-            Constraint::Fill(1),
-            Constraint::Length(3),
-        ])
-        .areas(area);
-
-        let [list_area, item_area] =
-            Layout::vertical([Constraint::Fill(1), Constraint::Fill(1)]).areas(main_area);
-
-        let [entry_area, entry_info_area] =
-            Layout::vertical([Constraint::Fill(1), Constraint::Length(2)]).areas(list_area);
-
-        let [tag_area, info_area] =
-            Layout::horizontal([Constraint::Max(25), Constraint::Min(35)]).areas(item_area);
-
-        // Render header and footer
-        App::render_header(header_area, buf);
-        self.render_footer(footer_area, buf);
-        // Render list area where entry gets selected
-        self.render_entrytable(entry_area, buf);
-        self.render_file_info(entry_info_area, buf);
-        // Render infos related to selected entry
-        self.render_taglist(tag_area, buf);
-        self.render_selected_item(info_area, buf);
-    }
-}
-
-impl App {
-    pub fn render_header(area: Rect, buf: &mut Buffer) {
-        Paragraph::new("BIBIMAN – BibLaTeX manager TUI")
-            .bold()
-            .fg(MAIN_BLUE_COLOR)
-            .centered()
-            .render(area, buf);
-    }
-
-    pub fn render_footer(&mut self, area: Rect, buf: &mut Buffer) {
-        match &self.current_area {
-            CurrentArea::SearchArea => {
-                let search_title = {
-                    match self.former_area {
-                        Some(FormerArea::EntryArea) => {
-                            let search_title = " Search Entries ".to_string();
-                            search_title
-                        }
-                        Some(FormerArea::TagArea) => {
-                            let search_title = " Search Keywords ".to_string();
-                            search_title
-                        }
-                        _ => {
-                            let search_title = " Search ".to_string();
-                            search_title
-                        }
-                    }
-                };
-
-                let block = Block::bordered()
-                    .title(Line::styled(search_title, BOX_SELECTED_TITLE_STYLE))
-                    .border_style(BOX_SELECTED_BOX_STYLE)
-                    .border_set(symbols::border::THICK);
-                Paragraph::new(self.search_struct.search_string.clone())
-                    .block(block)
-                    .render(area, buf);
-            }
-            _ => {
-                let style_emph = Style::new().bold().fg(TEXT_FG_COLOR);
-                let block = Block::bordered()
-                    .title(Line::raw(" Basic Commands ").centered())
-                    .border_style(BOX_UNSELECTED_BORDER_STYLE)
-                    .border_set(symbols::border::PLAIN);
-                Paragraph::new(Line::from(vec![
-                    Span::styled("j/k: ", style_emph),
-                    Span::raw("move | "),
-                    Span::styled("g/G: ", style_emph),
-                    Span::raw("top/bottom | "),
-                    Span::styled("TAB: ", style_emph),
-                    Span::raw("switch tab | "),
-                    Span::styled("y: ", style_emph),
-                    Span::raw("yank citekey | "),
-                    Span::styled("e: ", style_emph),
-                    Span::raw("edit | "),
-                    Span::styled("/: ", style_emph),
-                    Span::raw("search | "),
-                    Span::styled("o/u: ", style_emph),
-                    Span::raw("open PDF/DOI"),
-                ]))
-                .block(block)
-                .centered()
-                .render(area, buf);
-            }
-        }
-    }
-
-    // Render info of the current file and process
-    // 1. Basename of the currently loaded file
-    // 2. Keyword by which the entries are filtered at the moment
-    // 3. Currently selected entry and total count of entries
-    pub fn render_file_info(&mut self, area: Rect, buf: &mut Buffer) {
-        let block = Block::new() // can also be Block::new
-            // Leave Top empty to simulate one large box with borders of entry list
-            .borders(Borders::LEFT | Borders::RIGHT | Borders::BOTTOM)
-            .border_set(if let CurrentArea::EntryArea = self.current_area {
-                symbols::border::THICK
-            } else {
-                symbols::border::PLAIN
-            })
-            .border_style(if let CurrentArea::EntryArea = self.current_area {
-                BOX_SELECTED_BOX_STYLE
-            } else {
-                BOX_UNSELECTED_BORDER_STYLE
-            });
-
-        let [file_area, keyword_area, count_area] = Layout::horizontal([
-            Constraint::Fill(3),
-            Constraint::Fill(4),
-            Constraint::Fill(1),
-        ])
-        .horizontal_margin(1)
-        .areas(area);
-
-        Line::from(vec![
-            Span::raw("File: ").bold(),
-            Span::raw(self.main_bibfile.file_name().unwrap().to_string_lossy()).bold(),
-        ])
-        .bg(HEADER_FOOTER_BG)
-        .render(file_area, buf);
-
-        Line::from(if !self.tag_list.selected_keywords.is_empty() {
-            vec![
-                Span::raw("Selected keywords: "),
-                // Show all keywords in correct order if list is filtered
-                // successively by multiple keywords
-                Span::raw(self.tag_list.selected_keywords.join(" → "))
-                    .bold()
-                    .green(),
-            ]
-        } else {
-            vec![Span::raw(" ")]
-        })
-        .bg(HEADER_FOOTER_BG)
-        .render(keyword_area, buf);
-
-        Line::from(if self.entry_table.entry_table_state.selected().is_some() {
-            vec![
-                Span::raw((self.entry_table.entry_table_state.selected().unwrap() + 1).to_string())
-                    .bold(),
-                Span::raw("/"),
-                Span::raw(self.entry_table.entry_table_items.len().to_string()),
-            ]
-        } else {
-            vec![Span::raw("No entries")]
-        })
-        .right_aligned()
-        .bg(HEADER_FOOTER_BG)
-        .render(count_area, buf);
-
-        // Render that stuff
-        Widget::render(block, area, buf)
-    }
-
-    pub fn render_entrytable(&mut self, area: Rect, buf: &mut Buffer) {
-        let block = Block::new() // can also be Block::new
-            .title(
-                Line::styled(
-                    " Bibliographic Entries ",
-                    if let CurrentArea::EntryArea = self.current_area {
-                        BOX_SELECTED_TITLE_STYLE
-                    } else {
-                        BOX_UNSELECTED_TITLE_STYLE
-                    },
-                )
-                .centered(),
-            )
-            .borders(Borders::LEFT | Borders::RIGHT | Borders::TOP)
-            .border_set(if let CurrentArea::EntryArea = self.current_area {
-                symbols::border::THICK
-            } else {
-                symbols::border::PLAIN
-            })
-            .border_style(if let CurrentArea::EntryArea = self.current_area {
-                BOX_SELECTED_BOX_STYLE
-            } else {
-                BOX_UNSELECTED_BORDER_STYLE
-            });
-
-        let header_style = Style::default()
-            .bold()
-            .fg(TEXT_FG_COLOR)
-            .bg(HEADER_FOOTER_BG);
-
-        let header_selected_col = Style::default().underlined();
-
-        let header = Row::new(vec![
-            Cell::from(Line::from(vec![
-                {
-                    if let EntryTableColumn::Authors = self.entry_table.entry_table_selected_column
-                    {
-                        Span::styled("Author", header_selected_col)
-                    } else {
-                        Span::raw("Author")
-                    }
-                },
-                {
-                    if let EntryTableColumn::Authors = self.entry_table.entry_table_sorted_by_col {
-                        Span::raw(format!(
-                            " {}",
-                            if self.entry_table.entry_table_reversed_sort {
-                                SORTED_ENTRIES_REVERSED
-                            } else {
-                                SORTED_ENTRIES
-                            }
-                        ))
-                    } else {
-                        Span::raw("")
-                    }
-                },
-            ])),
-            Cell::from(Line::from(vec![
-                {
-                    if let EntryTableColumn::Title = self.entry_table.entry_table_selected_column {
-                        Span::styled("Title", header_selected_col)
-                    } else {
-                        Span::raw("Title")
-                    }
-                },
-                {
-                    if let EntryTableColumn::Title = self.entry_table.entry_table_sorted_by_col {
-                        Span::raw(format!(
-                            " {}",
-                            if self.entry_table.entry_table_reversed_sort {
-                                SORTED_ENTRIES_REVERSED
-                            } else {
-                                SORTED_ENTRIES
-                            }
-                        ))
-                    } else {
-                        Span::raw("")
-                    }
-                },
-            ])),
-            Cell::from(Line::from(vec![
-                {
-                    if let EntryTableColumn::Year = self.entry_table.entry_table_selected_column {
-                        Span::styled("Year", header_selected_col)
-                    } else {
-                        Span::raw("Year")
-                    }
-                },
-                {
-                    if let EntryTableColumn::Year = self.entry_table.entry_table_sorted_by_col {
-                        Span::raw(format!(
-                            " {}",
-                            if self.entry_table.entry_table_reversed_sort {
-                                SORTED_ENTRIES_REVERSED
-                            } else {
-                                SORTED_ENTRIES
-                            }
-                        ))
-                    } else {
-                        Span::raw("")
-                    }
-                },
-            ])),
-            Cell::from(Line::from(vec![
-                {
-                    if let EntryTableColumn::Pubtype = self.entry_table.entry_table_selected_column
-                    {
-                        Span::styled("Pubtype", header_selected_col)
-                    } else {
-                        Span::raw("Pubtype")
-                    }
-                },
-                {
-                    if let EntryTableColumn::Pubtype = self.entry_table.entry_table_sorted_by_col {
-                        Span::raw(format!(
-                            " {}",
-                            if self.entry_table.entry_table_reversed_sort {
-                                SORTED_ENTRIES_REVERSED
-                            } else {
-                                SORTED_ENTRIES
-                            }
-                        ))
-                    } else {
-                        Span::raw("")
-                    }
-                },
-            ])),
-        ])
-        .style(header_style)
-        .height(1);
-
-        // Iterate over vector storing each entries data fields
-        let rows = self
-            .entry_table
-            .entry_table_items
-            .iter_mut()
-            .enumerate()
-            .map(|(_i, data)| {
-                let item = data.ref_vec();
-                item.into_iter()
-                    .map(|content| Cell::from(Text::from(format!("{content}"))))
-                    .collect::<Row>()
-                    .style(Style::new().fg(TEXT_FG_COLOR)) //.bg(alternate_colors(i)))
-                    .height(1)
-            });
-        let entry_table = Table::new(
-            rows,
-            [
-                Constraint::Percentage(20),
-                Constraint::Fill(1),
-                Constraint::Length(
-                    if let EntryTableColumn::Year = self.entry_table.entry_table_sorted_by_col {
-                        6
-                    } else {
-                        4
-                    },
-                ),
-                Constraint::Percentage(10),
-            ],
-        )
-        .block(block)
-        .header(header)
-        .column_spacing(2)
-        .highlight_style(SELECTED_STYLE)
-        // .bg(Color::Black)
-        .highlight_spacing(HighlightSpacing::Always);
-        StatefulWidget::render(
-            entry_table,
-            area,
-            buf,
-            &mut self.entry_table.entry_table_state,
-        );
-
-        // Scrollbar for entry table
-        let scrollbar = Scrollbar::default()
-            .orientation(ScrollbarOrientation::VerticalRight)
-            .track_symbol(None)
-            .begin_symbol(SCROLLBAR_UPPER_CORNER)
-            .end_symbol(None)
-            .thumb_style(Style::new().fg(Color::DarkGray));
-
-        if let CurrentArea::EntryArea = self.current_area {
-            // render the scrollbar
-            StatefulWidget::render(
-                scrollbar,
-                area,
-                buf,
-                &mut self.entry_table.entry_scroll_state,
-            );
-        }
-    }
-
-    pub fn render_selected_item(&mut self, area: Rect, buf: &mut Buffer) {
-        // We get the info depending on the item's state.
-        let style_value = Style::new().bold().fg(TEXT_FG_COLOR);
-        let style_value_sec = Style::new()
-            .add_modifier(Modifier::ITALIC)
-            .fg(TEXT_FG_COLOR);
-        let lines = {
-            // if self.entry_table.entry_table_items.len() > 0 {
-            if self.entry_table.entry_table_state.selected().is_some() {
-                let idx = self.entry_table.entry_table_state.selected().unwrap();
-                let cur_entry = &self.entry_table.entry_table_items[idx];
-                let mut lines = vec![];
-                lines.push(Line::from(vec![
-                    Span::styled("Authors: ", style_value),
-                    // Span::styled(cur_entry.authors.clone(), Style::new().green()),
-                    Span::styled(cur_entry.authors(), Style::new().green()),
-                ]));
-                lines.push(Line::from(vec![
-                    Span::styled("Title: ", style_value),
-                    Span::styled(cur_entry.title(), Style::new().magenta()),
-                ]));
-                lines.push(Line::from(vec![
-                    Span::styled("Year: ", style_value),
-                    Span::styled(cur_entry.year(), Style::new().light_magenta()),
-                ]));
-                // Render keywords in info box in Markdown code style
-                if !cur_entry.keywords.is_empty() {
-                    let kw: Vec<&str> = cur_entry
-                        .keywords
-                        .split(",")
-                        .map(|k| k.trim())
-                        .filter(|k| !k.is_empty())
-                        .collect();
-                    let mut content = vec![Span::styled("Keywords: ", style_value)];
-                    for k in kw {
-                        // Add half block highlighted in bg color to enlarge block
-                        content.push(Span::raw("▐").fg(HEADER_FOOTER_BG));
-                        content.push(Span::styled(
-                            k,
-                            Style::default().bg(HEADER_FOOTER_BG).fg(
-                                // Highlight selected keyword green
-                                if self.tag_list.selected_keywords.iter().any(|e| e == k) {
-                                    Color::Green
-                                } else {
-                                    TEXT_FG_COLOR
-                                },
-                            ),
-                        ));
-                        content.push(Span::raw("▌").fg(HEADER_FOOTER_BG));
-                    }
-                    lines.push(Line::from(content))
-                }
-                if !cur_entry.doi_url.is_empty() || !cur_entry.filepath.is_empty() {
-                    lines.push(Line::raw(""));
-                }
-                if !cur_entry.doi_url.is_empty() {
-                    lines.push(Line::from(vec![
-                        Span::styled("DOI/URL: ", style_value_sec),
-                        Span::styled(
-                            cur_entry.doi_url(),
-                            Style::default().fg(TEXT_FG_COLOR).underlined(),
-                        ),
-                    ]));
-                }
-                if !cur_entry.filepath.is_empty() {
-                    lines.push(Line::from(vec![
-                        Span::styled("File: ", style_value_sec),
-                        Span::styled(cur_entry.filepath(), Style::default().fg(TEXT_FG_COLOR)),
-                    ]));
-                }
-                lines.push(Line::from(""));
-                lines.push(Line::from(vec![Span::styled(
-                    cur_entry.abstract_text.clone(),
-                    Style::default().fg(TEXT_FG_COLOR),
-                )]));
-                lines
-            } else {
-                let lines = vec![
-                    Line::from(" "),
-                    Line::from("No entry selected".bold().into_centered_line().red()),
-                ];
-                lines
-            }
-        };
-        let info = Text::from(lines);
-
-        // We show the list item's info under the list in this paragraph
-        let block = Block::bordered()
-            .title(Line::raw(" Entry Information ").centered().bold())
-            // .borders(Borders::TOP)
-            .border_set(symbols::border::PLAIN)
-            .border_style(BOX_UNSELECTED_BORDER_STYLE)
-            // .bg(Color::Black)
-            .padding(Padding::horizontal(1));
-
-        // INFO: '.line_count' method only possible with unstable-rendered-line-info feature -> API might change: https://github.com/ratatui/ratatui/issues/293#ref-pullrequest-2027056434
-        let box_height = Paragraph::new(info.clone())
-            .block(block.clone())
-            .wrap(Wrap { trim: false })
-            .line_count(area.width);
-        // Make sure to allow scroll only if text is larger than the rendered area and stop scrolling when last line is reached
-        let scroll_height = {
-            if self.entry_table.entry_info_scroll == 0 {
-                self.entry_table.entry_info_scroll
-            } else if area.height > box_height as u16 {
-                self.entry_table.entry_info_scroll = 0;
-                self.entry_table.entry_info_scroll
-            } else if self.entry_table.entry_info_scroll > (box_height as u16 + 2 - area.height) {
-                self.entry_table.entry_info_scroll = box_height as u16 + 2 - area.height;
-                self.entry_table.entry_info_scroll
-            } else {
-                self.entry_table.entry_info_scroll
-            }
-        };
-
-        // We can now render the item info
-        Paragraph::new(info)
-            .block(
-                block
-                    // Render arrows to show that info box has content outside the block
-                    .title(
-                        Title::from(
-                            if box_height > area.height.into()
-                                && self.entry_table.entry_info_scroll
-                                    < box_height as u16 + 2 - area.height
-                            {
-                                " ▼ "
-                            } else {
-                                ""
-                            },
-                        )
-                        .position(Position::Bottom)
-                        .alignment(Alignment::Right),
-                    )
-                    .title(
-                        Title::from(if scroll_height > 0 { " ▲ " } else { "" })
-                            .position(Position::Top)
-                            .alignment(Alignment::Right),
-                    ),
-            )
-            // .fg(TEXT_FG_COLOR)
-            .wrap(Wrap { trim: false })
-            .scroll((scroll_height, 0))
-            .render(area, buf);
-    }
-
-    pub fn render_taglist(&mut self, area: Rect, buf: &mut Buffer) {
-        let block = Block::bordered()
-            .title(
-                Line::styled(
-                    " Keywords ",
-                    if let CurrentArea::TagArea = self.current_area {
-                        BOX_SELECTED_TITLE_STYLE
-                    } else {
-                        BOX_UNSELECTED_TITLE_STYLE
-                    },
-                )
-                .centered(),
-            )
-            .border_set(if let CurrentArea::TagArea = self.current_area {
-                symbols::border::THICK
-            } else {
-                symbols::border::PLAIN
-            })
-            .border_style(if let CurrentArea::TagArea = self.current_area {
-                BOX_SELECTED_BOX_STYLE
-            } else {
-                BOX_UNSELECTED_BORDER_STYLE
-            });
-        // .bg(Color::Black);
-
-        // Iterate through all elements in the `items` and stylize them.
-        let items: Vec<ListItem> = self
-            .tag_list
-            .tag_list_items
-            .iter()
-            .enumerate()
-            .map(|(_i, todo_item)| {
-                // let color = alternate_colors(i);
-                ListItem::from(todo_item.to_owned()) //.bg(color)
-            })
-            .collect();
-
-        // Create a List from all list items and highlight the currently selected one
-        let list = List::new(items)
-            .block(block)
-            .highlight_style(SELECTED_STYLE)
-            // .highlight_symbol("> ")
-            .highlight_spacing(HighlightSpacing::Always);
-
-        // Save list length for calculating scrollbar need
-        // Add 2 to compmensate lines of the block border
-        let list_length = list.len() + 2;
-
-        // We need to disambiguate this trait method as both `Widget` and `StatefulWidget` share the
-        // same method name `render`.
-        StatefulWidget::render(list, area, buf, &mut self.tag_list.tag_list_state);
-
-        // Scrollbar for keyword list
-        let scrollbar = Scrollbar::default()
-            .orientation(ScrollbarOrientation::VerticalRight)
-            .track_symbol(None)
-            .begin_symbol(SCROLLBAR_UPPER_CORNER)
-            .end_symbol(SCROLLBAR_LOWER_CORNER)
-            .thumb_style(Style::new().fg(Color::DarkGray));
-
-        if list_length > area.height.into() {
-            if let CurrentArea::TagArea = self.current_area {
-                // render the scrollbar
-                StatefulWidget::render(scrollbar, area, buf, &mut self.tag_list.tag_scroll_state);
-            }
-        }
-    }
-}