#include "administration.hpp"

administration g_administration;

void administration_create()
{
    list_init(&g_administration.contacts);
    strncpy(g_administration.path, "[unsaved project]", sizeof(g_administration.path)); // @localize
}

void administration_destroy()
{
    list_destroy(&g_administration.contacts);
}

bool administration_create_contact(contact data)
{
    contact* new_contact = (contact*)malloc(sizeof(contact));
    memcpy((void*)new_contact, (void*)&data, sizeof(contact));
    list_append(&g_administration.contacts, new_contact);

    g_administration.next_id++;

    return true;
}

bool administration_update_contact(contact data)
{
    list_iterator_start(&g_administration.contacts);
    while (list_iterator_hasnext(&g_administration.contacts)) {
        contact* c = (contact *)list_iterator_next(&g_administration.contacts);

        if (strcmp(c->id, data.id) == 0) {
            memcpy(c, &data, sizeof(data));
            list_iterator_stop(&g_administration.contacts);
            return true;
        }
    }
    list_iterator_stop(&g_administration.contacts);

    return false;
}

bool administration_remove_contact(contact data)
{
    list_iterator_start(&g_administration.contacts);
    while (list_iterator_hasnext(&g_administration.contacts)) {
        contact* c = (contact *)list_iterator_next(&g_administration.contacts);

        if (strcmp(c->id, data.id) == 0) {      
            list_iterator_stop(&g_administration.contacts);
            list_delete(&g_administration.contacts, c);
            return true;
        }
    }
    list_iterator_stop(&g_administration.contacts);

    return false;
}

s32 administration_create_id()
{
    return g_administration.next_id;
}

u32 administration_get_contact_count()
{
    return list_size(&g_administration.contacts);
}

u32 administration_get_contacts(u32 page_index, u32 page_size, contact* buffer)
{
    assert(buffer);

    u32 write_cursor = 0;

    u32 read_start = page_index * page_size;
    
    list_iterator_start(&g_administration.contacts);
    while (list_iterator_hasnext(&g_administration.contacts)) {
        contact c = *(contact *)list_iterator_next(&g_administration.contacts);

        if (g_administration.contacts.iter_pos <= read_start) continue;

        buffer[write_cursor++] = c;
        if (write_cursor >= page_size) break;
    }
    list_iterator_stop(&g_administration.contacts);

    return write_cursor;
}

char* administration_get_file_path()
{
    return g_administration.path;
}