#ifndef SPAWNFUNC_H
#define SPAWNFUNC_H

/** If this global exists, only functions with spawnfunc_ name prefix qualify as spawn functions */
noref bool require_spawnfunc_prefix;
.bool spawnfunc_checked;

// Optional type checking; increases compile time too much to be enabled by default
#if 0
bool entityfieldassignablefromeditor(int i) {
    switch (entityfieldtype(i)) {
        case FIELD_STRING:
        case FIELD_FLOAT:
        case FIELD_VECTOR:
            return true;
    }
    return false;
}

#define _spawnfunc_checktypes(fld) if (fieldname == #fld) \
    if (!entityfieldassignablefromeditor(i)) LOG_FATALF("Entity field '%s' cannot be whitelisted\n", fieldname);
#else
#define _spawnfunc_checktypes(fld)
#endif
#define _spawnfunc_check(fld) if (fieldname == #fld) \
    continue;

#define spawnfunc_1(id, whitelist) spawnfunc_2(id, whitelist)
#define spawnfunc_2(id, whitelist) void spawnfunc_##id(entity this) { \
    this = self; \
    if (!this.spawnfunc_checked) { \
        for (int i = 0, n = numentityfields(); i < n; ++i) { \
            string value = getentityfieldstring(i, this); \
            string fieldname = entityfieldname(i); \
            whitelist(_spawnfunc_checktypes) \
            if (value == "") continue; \
            if (fieldname == "") continue; \
            FIELDS_COMMON(_spawnfunc_check) \
            whitelist(_spawnfunc_check) \
            LOG_WARNINGF(_("Entity field %s.%s (%s) is not whitelisted. If you believe this is an error, please file an issue.\n"), #id, fieldname, value); \
        } \
        this.spawnfunc_checked = true; \
    } \
} \
[[accumulate]] void spawnfunc_##id(entity this)

#define FIELD_SCALAR(fld, n) \
    fld(n)
#define FIELD_VEC(fld, n) \
    fld(n) \
    fld(n##_x) \
    fld(n##_y) \
    fld(n##_z)

#define FIELDS_NONE(fld)
#define FIELDS_ALL(fld) if (false)

#define FIELDS_COMMON(fld) \
    FIELD_SCALAR(fld, classname) \
    FIELD_SCALAR(fld, spawnfunc_checked) \
    /**/

#define FIELDS_UNION(fld) \
    FIELD_SCALAR(fld, Version) \
    FIELD_SCALAR(fld, ammo_cells) \
    FIELD_SCALAR(fld, ammo_nails) \
    FIELD_SCALAR(fld, ammo_rockets) \
    FIELD_SCALAR(fld, armorvalue) \
    FIELD_SCALAR(fld, atten) \
    FIELD_SCALAR(fld, bgmscriptdecay) \
    FIELD_SCALAR(fld, bgmscriptsustain) \
    FIELD_SCALAR(fld, bgmscript) \
    FIELD_SCALAR(fld, button0) \
    FIELD_SCALAR(fld, cnt) \
    FIELD_SCALAR(fld, colormap) \
    FIELD_SCALAR(fld, count) \
    FIELD_SCALAR(fld, curvetarget) \
    FIELD_SCALAR(fld, cvarfilter) \
    FIELD_SCALAR(fld, debrisdamageforcescale) \
    FIELD_SCALAR(fld, debrisfadetime) \
    FIELD_SCALAR(fld, debristimejitter) \
    FIELD_SCALAR(fld, debristime) \
    FIELD_SCALAR(fld, debris) \
    FIELD_SCALAR(fld, delay) \
    FIELD_SCALAR(fld, dmgtime) \
    FIELD_SCALAR(fld, dmg) \
    FIELD_SCALAR(fld, dmg_edge) \
    FIELD_SCALAR(fld, dmg_force) \
    FIELD_SCALAR(fld, dmg_radius) \
    FIELD_SCALAR(fld, effects) \
    FIELD_SCALAR(fld, flags) \
    FIELD_SCALAR(fld, fog) \
    FIELD_SCALAR(fld, frags) \
    FIELD_SCALAR(fld, frame) \
    FIELD_SCALAR(fld, gametypefilter) \
    FIELD_SCALAR(fld, geomtype) \
    FIELD_SCALAR(fld, gravity) \
    FIELD_SCALAR(fld, health) \
    FIELD_SCALAR(fld, height) \
    FIELD_SCALAR(fld, impulse) \
    FIELD_SCALAR(fld, killtarget) \
    FIELD_SCALAR(fld, lerpfrac) \
    FIELD_SCALAR(fld, light_lev) \
    FIELD_SCALAR(fld, lip) \
    FIELD_SCALAR(fld, loddistance1) \
    FIELD_SCALAR(fld, lodmodel1) \
    FIELD_SCALAR(fld, ltime) \
    FIELD_SCALAR(fld, mdl) \
    FIELD_SCALAR(fld, message2) \
    FIELD_SCALAR(fld, message) \
    FIELD_SCALAR(fld, modelindex) \
    FIELD_SCALAR(fld, modelscale) \
    FIELD_SCALAR(fld, model) \
    FIELD_SCALAR(fld, monster_moveflags) \
    FIELD_SCALAR(fld, movetype) \
    FIELD_SCALAR(fld, netname) \
    FIELD_SCALAR(fld, nextthink) \
    FIELD_SCALAR(fld, noalign) \
    FIELD_SCALAR(fld, noise1) \
    FIELD_SCALAR(fld, noise2) \
    FIELD_SCALAR(fld, noise) \
    FIELD_SCALAR(fld, phase) \
    FIELD_SCALAR(fld, platmovetype) \
    FIELD_SCALAR(fld, race_place) \
    FIELD_SCALAR(fld, radius) \
    FIELD_SCALAR(fld, respawntimejitter) \
    FIELD_SCALAR(fld, respawntime) \
    FIELD_SCALAR(fld, restriction) \
    FIELD_SCALAR(fld, scale) \
    FIELD_SCALAR(fld, skin) \
    FIELD_SCALAR(fld, solid) \
    FIELD_SCALAR(fld, sound1) \
    FIELD_SCALAR(fld, sounds) \
    FIELD_SCALAR(fld, spawnflags) \
    FIELD_SCALAR(fld, speed) \
    FIELD_SCALAR(fld, strength) \
    FIELD_SCALAR(fld, target2) \
    FIELD_SCALAR(fld, target3) \
    FIELD_SCALAR(fld, target4) \
    FIELD_SCALAR(fld, targetname) \
    FIELD_SCALAR(fld, target) \
    FIELD_SCALAR(fld, target_random) \
    FIELD_SCALAR(fld, target_range) \
    FIELD_SCALAR(fld, team) \
    FIELD_SCALAR(fld, turret_scale_health) \
    FIELD_SCALAR(fld, turret_scale_range) \
    FIELD_SCALAR(fld, turret_scale_respawn) \
    FIELD_SCALAR(fld, volume) \
    FIELD_SCALAR(fld, wait) \
    FIELD_SCALAR(fld, warpzone_fadeend) \
    FIELD_SCALAR(fld, warpzone_fadestart) \
    FIELD_SCALAR(fld, weapon) \
    FIELD_VEC(fld, absmax) \
    FIELD_VEC(fld, absmin) \
    FIELD_VEC(fld, angles) \
    FIELD_VEC(fld, avelocity) \
    FIELD_VEC(fld, maxs) \
    FIELD_VEC(fld, maxs) \
    FIELD_VEC(fld, mins) \
    FIELD_VEC(fld, modelscale_vec) \
    FIELD_VEC(fld, origin) \
    FIELD_VEC(fld, velocity) \
    /**/

#define spawnfunc(...) EVAL(OVERLOAD(spawnfunc, __VA_ARGS__, FIELDS_UNION))

#endif