const CHANT_REGEX = /<(?!e:|h:|l:)[^,> ]*>?/g;
const CHANT_TRIGGER = () => TAC.Globals.CFG.chantFile && TAC.Globals.CFG.chantFile !== "None" && TAC.Globals.tagword.match(CHANT_REGEX);

class ChantParser extends BaseTagParser {
    parse() {
        // Show Chant
        let tempResults = [];
        if (TAC.Globals.tagword !== "<" && TAC.Globals.tagword !== "<c:") {
            let searchTerm = TAC.Globals.tagword.replace("<chant:", "").replace("<c:", "").replace("<", "");
            let filterCondition = x => {
                let regex = new RegExp(TacUtils.escapeRegExp(searchTerm, true), 'i');
                return regex.test(x.terms.toLowerCase()) || regex.test(x.name.toLowerCase());
            };
            tempResults = TAC.Globals.chants.filter(x => filterCondition(x)); // Filter by tagword
        } else {
            tempResults = TAC.Globals.chants;
        }

        // Add final results
        let finalResults = [];
        tempResults.forEach(t => {
            let result = new AutocompleteResult(t.content.trim(), ResultType.chant)
            result.meta = "Chant";
            result.aliases = t.name;
            result.category = t.color;
            finalResults.push(result);
        });

        return finalResults;
    }
}

async function load() {
    if (TAC.Globals.CFG.chantFile && TAC.Globals.CFG.chantFile !== "None") {
        try {
            TAC.Globals.chants = await TacUtils.readFile(`${TAC.Globals.tagBasePath}/${TAC.Globals.CFG.chantFile}?`, true);
        } catch (e) {
            console.error("Error loading chants.json: " + e);
        }
    } else {
        TAC.Globals.chants = [];
    }
}

function sanitize(tagType, text) {
    if (tagType === ResultType.chant) {
        return text;
    }
    return null;
}

TAC.Ext.PARSERS.push(new ChantParser(CHANT_TRIGGER));

// Add our utility functions to their respective queues
TAC.Ext.QUEUE_FILE_LOAD.push(load);
TAC.Ext.QUEUE_SANITIZE.push(sanitize);
TAC.Ext.QUEUE_AFTER_CONFIG_CHANGE.push(load);