#ifndef BOKF_UI_H
#define BOKF_UI_H

#include <stddef.h>
#include <stdint.h>

#include "client.h"
#include "tui.h"
#include "util.h"
#include "yyjson.h"

/* Shared UI state and helpers for the bokftui screens (screens_<group>.c).
   The scene registry and main() live in bokftui.c. */

/* universal "new/add" hotkey: ^N (0x0e), the de-facto Linux convention */
#define KEY_CTRL_N 0x0e
/* ^X clears the focused row in row editors */
#define KEY_CTRL_X 0x18
/* ^Enter saves/posts the form; sent via xterm modifyOtherKeys */
#define KEY_CTRL_ENTER (KEY_MAX + 1)
/* Pager markup: headings, dimmed derived lines and full-width rules. */
#define MK_HEAD "\001"
#define MK_DIM "\002"
#define MK_RULE "\003"
#define MK_STICKY "\004"
/* Menu item prefix for a non-selectable section header. */
#define MK_SECTION MK_HEAD

struct app {
    struct client_conn conn;
    char socket[256];
    char session[128];
    char username[64];
    char password[128]; /* typed or from BOKFD_PASSWORD, kept for ^R */
    int64_t org;
    char org_name[128];
    char role[32];
    int64_t fy;
    int64_t voucher_sel; /* last selected voucher id in the list view */
    int64_t invoice_sel; /* last selected invoice id in the list view */
    int64_t customer_sel; /* last selected customer id in the list view */
    char default_series[16];
    char attachment_dir[256];
    long max_attachment_bytes;
    char fy_label[64];
    char fy_start[16];
    char fy_end[16];
};

/* ^C quits the application; Esc is navigation only */
extern int g_quit;
/* ^R re-execs the binary, keeping session, org, year and screen */
extern int g_reload;
extern char g_scene[32];
extern char g_reload_scene[32];
extern char g_server_version[32];

/* json helpers */
yyjson_val *jget(yyjson_val *root, const char *path);
yyjson_doc *parse(const char *resp);
char *jstr_dup(const char *resp, const char *path);
int64_t jint_val(const char *resp, const char *path, int64_t def);
size_t jarr_size(const char *resp, const char *path);
int jbool_val(const char *resp, const char *path, int def);

/* shared UI primitives */
int ui_getch(void);
void request_quit(void);
void tui_log(const char *fmt, ...) __attribute__((format(printf, 1, 2)));
void show_error(const char *title, const char *resp);
void kr_whole(int64_t ore, char *buf, size_t n);
int parse_x_double(const char *s, double *out);
void replace_x_into(const char *src, double x, char *dst, size_t cap);
void app_refresh_context(struct app *a);
char *rpc_dry(struct app *a, const char *cmd, const char *args);
char *read_file_b64(const char *path);
char *file_browser(struct app *a, const char *start_dir);
void attachment_download(struct app *a, int64_t att_id);
int64_t pick_voucher(struct app *a);

/* generated-document helpers (reports, bokslut) */
void buf_line(struct buf *b, const char *fmt, ...)
    __attribute__((format(printf, 2, 3)));
void buf_rule(struct buf *b, int width);
const char *vstr(yyjson_val *o, const char *k);
int64_t vint(yyjson_val *o, const char *k);
int acct_in(const char *number, int lo, int hi);
extern const char *const BS_KEYS[3];
struct is_group {
    const char *section;
    const char *title;
    int lo, hi;
    int rev;
};
#define IS_GROUPS_N 7
extern const struct is_group IS_GROUPS[IS_GROUPS_N];

/* defined in bokftui.c, used by screens */
void open_scene(struct app *a, const char *name);
void config_mkdirs(const char *path);

/* Optional prefill for the new-voucher form (bank reconciliation). */
struct voucher_prefill {
    const char *date;         /* YYYY-MM-DD, may be NULL */
    const char *description;  /* voucher text, may be NULL */
    const char *bank_account; /* account number for the prefilled row */
    int64_t amount_ore;       /* > 0 debits the bank account, < 0 credits it */
};

/* screen entry points (scene registry) */
void dashboard(struct app *a);
void update_status(struct app *a);
int64_t vouchers_new(struct app *a);
int64_t vouchers_new_prefill(struct app *a, const struct voucher_prefill *p);
void vouchers_screen(struct app *a);
void acct_cache_free(void);
const char *acct_name(struct app *a, const char *number);
int acct_exists(struct app *a, const char *number);
void accounts_report(struct app *a);
void reports_screen(struct app *a);
void ink2_screen(struct app *a);
void rules_screen(struct app *a);
void inbox_screen(struct app *a);
void bank_screen(struct app *a);
void audit_screen(struct app *a);
void templates_screen(struct app *a);
void ib_screen(struct app *a);
void settings_screen(struct app *a);
void company_screen(struct app *a);
void invoices_screen(struct app *a);
void customers_screen(struct app *a);
void bokslut_screen(struct app *a);

#endif