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#ifndef BOKF_TUI_H
#define BOKF_TUI_H
#include <stddef.h>
#include <stdint.h>
#include <ncursesw/ncurses.h>
/* Shared TUI widgets: the only place that touches ncurses (screens compose
these; see docs/TUI-GUIDELINES.md). Everything with logic of its own is
unit-tested in tests/test_tui.c, which links only the pure parts. */
/* Universal keys that have no control code or need a stable name. */
#define TUI_KEY_CTRL_N 0x0e
#define TUI_KEY_CTRL_X 0x18
#define TUI_KEY_CTRL_ENTER (KEY_MAX + 1)
/* Key hooks: widgets call the screen's hook for keys they do not handle. */
#define TUI_HOOK_NONE 0 /* not handled: process the key normally */
#define TUI_HOOK_STAY 1 /* handled: redraw and keep the widget up */
#define TUI_HOOK_BACK 2 /* handled: return "back" */
#define TUI_HOOK_REFRESH 3 /* handled: return "refresh" */
#define TUI_HOOK_SUBMIT 4 /* handled: return "submit" (forms only) */
/* The application supplies input, frame/hints drawing and a quit hook so
this module stays free of app state (and testable). */
void tui_set_input(int (*fn)(void));
void tui_set_screen(void (*frame)(const char *), void (*hints)(const char *));
void tui_set_quit(void (*fn)(void));
void tui_keys_setup(void);
/* --- text measure and formatting --- */
int tui_disp_width(const char *s);
int tui_disp_width_n(const char *s, size_t n);
void tui_pad_field(char *buf, size_t cap, int width);
void tui_pad_label(char *buf, size_t n, const char *text, int width);
void tui_pad_hdr(char *buf, size_t n, int width, const char *text);
void tui_amt_col(char *buf, size_t n, int width, int64_t ore);
void tui_kr_format(int64_t ore, char *buf, size_t n);
void tui_kr0_format(int64_t ore, char *buf, size_t n);
int tui_parse_kr(const char *s, int64_t *out);
/* --- line editor (pure) --- */
struct tui_ledit {
char *buf;
size_t cap;
size_t len;
size_t pos; /* caret in bytes */
};
void tui_le_init(struct tui_ledit *e, char *buf, size_t cap);
void tui_le_clear(struct tui_ledit *e);
int tui_le_key(struct tui_ledit *e, int ch);
/* Applies one key to a form field. *pos is the caret ((size_t)-1 = end);
*fresh replaces the content on the first editing key. Returns whether
the key was consumed. */
int tui_field_edit(char *buf, size_t cap, size_t *pos, int ch, int *fresh);
/* Date field: digits only, dashes inserted ("20260215" -> "2026-02-15"),
caret tracked in digit space. */
int tui_date_field_edit(char *buf, size_t cap, size_t *pos, int ch,
int *fresh);
/* Line editor at (y,x) with the label already drawn. Returns 1 on Enter,
2 on Tab, 3 on Shift-Tab, 0 on Esc. */
int tui_edit_field(int y, int x, char *buf, size_t cap, int mask);
/* --- modal dialogs --- */
void tui_message(const char *title, const char *fmt, ...)
__attribute__((format(printf, 2, 3)));
int tui_confirm(const char *title, const char *fmt, ...)
__attribute__((format(printf, 2, 3)));
/* --- prompts: write into the caller's buffer, return 0 on Esc --- */
int tui_prompt_into(char *buf, size_t cap, const char *label,
const char *def, int mask);
int tui_date_prompt_into(char *buf, size_t cap, const char *label,
const char *def);
int tui_amount_prompt_into(int64_t *out, const char *label, int64_t def_ore);
int tui_choice_prompt(const char *label, const char *const *opts, int n,
int cur);
/* --- lists --- */
#define TUI_NAV_NONE (-3)
struct tui_list_nav {
int n, sel, top, view, numw;
char gotobuf[12];
char gotolabel[32];
int goto_active;
};
/* Returns the selected index, or -1 back, -2 refresh, -4 new, -6 remove,
-7 toggle, TUI_NAV_NONE when nothing happened. */
int tui_nav_key(struct tui_list_nav *v, int ch, int allow_new,
int allow_remove, int allow_toggle, int menu_mode);
int tui_select_list(const char *title, char **items, int n, int start,
int allow_refresh, int *cursor, int allow_new,
const char *archive_action, int allow_toggle);
int tui_select_list_hook(const char *title, char **items, int n, int start,
int allow_refresh, int *cursor, int allow_new,
const char *archive_action, int allow_toggle,
int (*key)(void *ud, int ch), void *ud);
int tui_menu(const char *title, const char *const *items, int n,
int allow_new, int *cursor);
/* --- frame, status, hints, pager --- */
void tui_set_status(const char *status, const char *right);
void tui_frame(const char *title);
void tui_hints(const char *s);
void tui_redraw(void);
#define TUI_PAGER_SAVE 0x1 /* 's' returns 2 (the save action) */
int tui_pager(const char *title, const char *text, const char *action_hint);
int tui_pager_hook(const char *title, const char *text,
const char *extra_hint, unsigned flags,
int (*key)(void *ud, int ch), void *ud);
/* --- forms --- */
enum {
TUI_F_TEXT = 0,
TUI_F_DATE,
TUI_F_AMOUNT,
TUI_F_CHOICE,
TUI_F_ACTION,
};
#define TUI_FORM_BACK (-1)
#define TUI_FORM_PAGE 10
#define TUI_FORM_REFRESH (-2)
#define TUI_FORM_SUBMIT (-8)
struct tui_form_field {
const char *label;
char *value; /* text storage for TEXT/DATE (also CHOICE labels/ACTION) */
size_t cap;
int kind;
int mask; /* TEXT: '*' instead of the content */
int64_t *ore; /* TUI_F_AMOUNT */
const char *const *choices; /* TUI_F_CHOICE */
int nchoices;
int *choice; /* TUI_F_CHOICE: current index */
};
int tui_form_next(int sel, int n, int ch);
int tui_form_run(const char *title, struct tui_form_field *f, int n,
int can_edit);
int tui_form_run_hook(const char *title, struct tui_form_field *f, int n,
int can_edit, int (*key)(void *ud, int ch), void *ud);
/* --- row table --- */
enum { TUI_RT_EDIT = 0, TUI_RT_INFO, TUI_RT_DATE };
struct tui_rt_col {
const char *header;
int x;
int width;
int kind;
};
struct tui_rt {
int nrows, maxrows, ncols, neditable;
const struct tui_rt_col *cols;
int y;
int row, col;
int fresh;
size_t pos;
void (*cell)(void *, int, int, char **, size_t *);
void (*info)(void *, int, char *, size_t);
void *ud;
int (*key)(void *, int);
/* Writes the dim status line shown under the table ('\n' -> ' '). */
void (*footer)(void *, char *, size_t);
/* Optional header fields drawn above the table; focus starts there. */
struct tui_form_field *fields;
int nfields;
int focus; /* header field index, or -1 for the table */
};
void tui_rt_init(struct tui_rt *t, int nrows, int maxrows, int ncols,
const struct tui_rt_col *cols, int y,
void (*cell)(void *, int, int, char **, size_t *),
void (*info)(void *, int, char *, size_t), void *ud);
void tui_rt_set_key(struct tui_rt *t, int (*key)(void *ud, int ch));
void tui_rt_set_footer(struct tui_rt *t,
void (*footer)(void *ud, char *buf, size_t n));
void tui_rt_set_fields(struct tui_rt *t, struct tui_form_field *fields, int n);
int tui_rt_blank_row(struct tui_rt *t, int row);
int tui_rt_normalize(struct tui_rt *t);
int tui_rt_move(struct tui_rt *t, int dr, int dc);
int tui_rt_tab(struct tui_rt *t, int dir);
int tui_rt_clear(struct tui_rt *t);
int tui_rt_col_of(const struct tui_rt *t, int ecol);
int tui_rt_run(const char *title, struct tui_rt *t, const char *hint);
/* Focus order for a row table with header fields: fields first, then the
editable cells row by row, wrapping back to the first field. focus -1 is
the table, 0..nf-1 the fields; dir 1 = Tab, -1 = Shift-Tab. When the new
focus is in the table, updates the row and col pointers. */
int tui_rt_focus_step(int focus, int nf, int *row, int *col, int nrows,
int neditable, int dir);
/* The footer line (above the hints) and its flattening. */
int tui_rt_footer_row(int lines);
void tui_rt_footer_flatten(char *s);
#endif
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