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#include "settings.h"
#include "command.h"
#include "hash.h"
#include "minibuffer.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
static struct settings g_settings = {0};
void settings_resize(uint32_t new_capacity) {
if (new_capacity > g_settings.capacity) {
g_settings.settings =
realloc(g_settings.settings, sizeof(struct setting) * new_capacity);
}
}
void settings_init(uint32_t initial_capacity) {
settings_resize(initial_capacity);
g_settings.capacity = initial_capacity;
g_settings.nsettings = 0;
}
void settings_destroy() {
for (uint32_t i = 0; i < g_settings.nsettings; ++i) {
struct setting *setting = &g_settings.settings[i];
if (setting->value.type == Setting_String) {
free(setting->value.string_value);
}
}
free(g_settings.settings);
g_settings.settings = NULL;
g_settings.capacity = 0;
g_settings.nsettings = 0;
}
void settings_register_setting(const char *path,
struct setting_value default_value) {
if (g_settings.nsettings + 1 == g_settings.capacity) {
g_settings.capacity *= 2;
settings_resize(g_settings.capacity);
}
struct setting *s = &g_settings.settings[g_settings.nsettings];
s->value = default_value;
s->hash = hash_name(path);
strncpy(s->path, path, 128);
s->path[127] = '\0';
++g_settings.nsettings;
}
struct setting *settings_get(const char *path) {
uint32_t needle = hash_name(path);
for (uint32_t i = 0; i < g_settings.nsettings; ++i) {
struct setting *setting = &g_settings.settings[i];
if (setting->hash == needle) {
return setting;
}
}
return NULL;
}
void settings_get_prefix(const char *prefix, struct setting **settings_out[],
uint32_t *nsettings_out) {
uint32_t capacity = 16;
struct setting **res = malloc(sizeof(struct setting *) * capacity);
uint32_t nsettings = 0;
for (uint32_t i = 0; i < g_settings.nsettings; ++i) {
struct setting *setting = &g_settings.settings[i];
if (strncmp(prefix, setting->path, strlen(prefix)) == 0) {
if (nsettings + 1 == capacity) {
capacity *= 2;
res = realloc(res, sizeof(struct setting *) * capacity);
}
res[nsettings] = setting;
++nsettings;
}
}
*nsettings_out = nsettings;
*settings_out = res;
}
void settings_set(const char *path, struct setting_value value) {
struct setting *setting = settings_get(path);
if (setting != NULL && setting->value.type == value.type) {
setting->value = value;
}
}
void setting_to_string(struct setting *setting, char *buf, size_t n) {
switch (setting->value.type) {
case Setting_Bool:
snprintf(buf, n, "%s", setting->value.bool_value ? "true" : false);
break;
case Setting_Number:
snprintf(buf, n, "%ld", setting->value.number_value);
break;
case Setting_String:
snprintf(buf, n, "%s", setting->value.string_value);
break;
}
}
int32_t settings_get_cmd(struct command_ctx ctx, int argc, const char *argv[]) {
if (argc == 0) {
return minibuffer_prompt(ctx, "setting: ");
}
struct setting *setting = settings_get(argv[0]);
if (setting == NULL) {
minibuffer_echo_timeout(4, "no such setting \"%s\"", argv[0]);
return 1;
} else {
char buf[128];
setting_to_string(setting, buf, 128);
minibuffer_echo("%s = %s", argv[0], buf);
}
return 0;
}
int32_t settings_set_cmd(struct command_ctx ctx, int argc, const char *argv[]) {
if (argc == 0) {
return minibuffer_prompt(ctx, "setting: ");
} else if (argc == 1) {
// validate setting here as well
struct setting *setting = settings_get(argv[0]);
if (setting == NULL) {
minibuffer_echo_timeout(4, "no such setting \"%s\"", argv[0]);
return 1;
}
command_ctx_push_arg(&ctx, argv[0]);
return minibuffer_prompt(ctx, "value: ");
}
struct setting *setting = settings_get(argv[0]);
if (setting == NULL) {
minibuffer_echo_timeout(4, "no such setting \"%s\"", argv[0]);
return 1;
} else {
const char *value = argv[1];
struct setting_value new_value = {.type = setting->value.type};
switch (setting->value.type) {
case Setting_Bool:
new_value.bool_value = strncmp("true", value, 4) == 0;
break;
case Setting_Number:
new_value.number_value = atol(value);
break;
case Setting_String:
new_value.string_value = strdup(value);
break;
}
setting->value = new_value;
}
return 0;
}
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