terom@83: #include "config.h"
terom@83: 
terom@83: #include <string.h>
terom@100: #include <assert.h>
terom@83: 
terom@100: const struct config_option* config_lookup (const struct config_option *options, const char *name, struct error_info *err)
terom@83: {
terom@100:     const struct config_option *option;
terom@83: 
terom@83:     // find the matching config opt
terom@83:     for (option = options; option->name && option->type; option++) {
terom@83:         if (strcmp(option->name, name) == 0)
terom@100:             return option;
terom@100:     }
terom@100: 
terom@100:     // not found
terom@100:     SET_ERROR_STR(err, ERR_MODULE_CONF, "unknown configuration option");
terom@100: 
terom@100:     return NULL;
terom@100: }
terom@100: 
terom@100: /**
terom@100:  * Parse a raw value for a CONFIG_IRC_CHAN into an irc_chan
terom@100:  */
terom@100: static struct irc_chan* config_parse_irc_chan (struct nexus *nexus, char *raw_value, struct error_info *err)
terom@100: {
terom@100:     const char *network, *channel;
terom@100:     struct irc_chan *chan;
terom@100: 
terom@100:     // parse required args
terom@100:     if ((network = strsep(&raw_value, "/")) == NULL)
terom@100:         JUMP_SET_ERROR_STR(err, ERR_MODULE_CONF, "invalid <network> for CONFIG_IRC_CHAN value");
terom@100: 
terom@100:     if ((channel = strsep(&raw_value, "/")) == NULL)
terom@100:         JUMP_SET_ERROR_STR(err, ERR_MODULE_CONF, "invalid <channel> for CONFIG_IRC_CHAN value");
terom@100:     
terom@100:     // extraneous stuff?
terom@100:     if (raw_value)
terom@100:         JUMP_SET_ERROR_STR(err, ERR_MODULE_CONF, "trailing data for CONFIG_IRC_CHAN value");
terom@100:     
terom@100:     // get the channel?
terom@100:     if ((chan = irc_client_get_chan(nexus->client, network, channel)) == NULL)
terom@100:         JUMP_SET_ERROR_STR(err, ERR_MODULE_CONF, "unknown network/channel name for CONFIG_IRC_CHAN value");
terom@100:     
terom@100:     // ok
terom@100:     return chan;
terom@100: 
terom@100: error:
terom@100:     return NULL;    
terom@100: }
terom@100: 
terom@100: err_t config_parse (const struct config_option *option, struct nexus *nexus, struct config_value *value, char *raw_value, struct error_info *err)
terom@100: {
terom@100:     // parse the value 
terom@100:     switch (option->type) {
terom@100:         case CONFIG_STRING:
terom@100:             // simple!
terom@100:             value->string = raw_value;
terom@83:             break;
terom@100: 
terom@100:         case CONFIG_IRC_CHAN:
terom@100:             // parse the value
terom@100:             if (!(value->irc_chan = config_parse_irc_chan(nexus, raw_value, err)))
terom@100:                 return ERROR_CODE(err);
terom@100: 
terom@100:             break;
terom@100:         
terom@100:         default:
terom@100:             NOT_REACHED();
terom@83:     }
terom@83: 
terom@100:     // copy the type
terom@100:     value->type = option->type;
terom@100: 
terom@100:     // ok
terom@100:     return SUCCESS; 
terom@100: }
terom@100: 
terom@100: err_t config_apply_opt (const struct config_option *option, void *ctx, const struct config_value *value, struct error_info *err)
terom@100: {
terom@100:     // wrong type?
terom@100:     if (option->type != value->type)
terom@100:         // XXX: info about type names
terom@100:         return SET_ERROR(err, ERR_CONFIG_TYPE);
terom@100: 
terom@100:     // null?
terom@100:     if (!value)
terom@100:         RETURN_SET_ERROR_STR(err, ERR_CONFIG_REQUIRED, option->name);
terom@100:     
terom@100:     // call the handler
terom@100:     switch (option->type) {
terom@100:         case CONFIG_STRING:     return option->func.string(ctx, value->string, err);
terom@100:         case CONFIG_IRC_CHAN:   return option->func.irc_chan(ctx, value->irc_chan, err);
terom@100:         default:                NOT_REACHED();
terom@100:     }
terom@100: }
terom@100: 
terom@100: err_t config_apply (const struct config_option *options, void *ctx, const char *name, const struct config_value *value, struct error_info *err)
terom@100: {
terom@100:     const struct config_option *option;
terom@100: 
terom@83:     // no matching option found?
terom@100:     if (!(option = config_lookup(options, name, err)))
terom@100:         return ERROR_CODE(err);
terom@100:     
terom@100:     // apply it    
terom@100:     return config_apply_opt(option, ctx, value, err);
terom@100: }
terom@83: 
terom@100: err_t config_apply_string (const struct config_option *options, void *ctx, const char *name, char *value, struct error_info *err)
terom@100: {
terom@100:     struct config_value conf_value = { CONFIG_STRING, { .string = value } };
terom@100: 
terom@100:     return config_apply(options, ctx, name, &conf_value, err);
terom@83: }
terom@100: 
terom@100: err_t config_apply_irc_chan (const struct config_option *options, void *ctx, const char *name, struct irc_chan *value, struct error_info *err)
terom@100: {
terom@100:     struct config_value conf_value = { CONFIG_STRING, { .irc_chan = value } };
terom@100: 
terom@100:     return config_apply(options, ctx, name, &conf_value, err);
terom@100: }
terom@100: 
terom@100: err_t config_apply_raw (const struct config_option *options, struct nexus *nexus, void *ctx, const char *name, char *raw_value, struct error_info *err)
terom@100: {
terom@100:     const struct config_option *option;
terom@100:     struct config_value value;
terom@100: 
terom@100:     // no matching option found?
terom@100:     if (!(option = config_lookup(options, name, err)))
terom@100:         return ERROR_CODE(err);
terom@100:     
terom@100:     // parse it
terom@100:     if (config_parse(option, nexus, &value, raw_value, err))
terom@100:         return ERROR_CODE(err);
terom@100:     
terom@100:     // apply it
terom@100:     return config_apply_opt(option, ctx, &value, err);
terom@100: }
terom@100: