#!/usr/bin/env fish

function usage
    begin
        echo "Read TSV release data from sdtin > query Discogs API > output JSON"
        exit 1
    end
end

argparse -n (status current-filename) 'h/help' -- $argv
if test $status -ne 0
    usage
end

if set -q _flag_help
    usage
end

set API_OUT (mktemp -t rls.API.XXXXXXXX.json)
set DAPI "https://api.discogs.com/database/search"
set UA "rls-discogs.fish/v0.0.3"

if test -f ~/.discogs.token
    set TOKEN (cat ~/.discogs.token)
end

if test -z "$TOKEN"
	echo "Please place access token from https://www.discogs.com/settings/developers into ~/.discogs.token"
	exit 1
end

function discord_format
	switch $argv[1]
        case (seq 100)VINYL VINYL VLS Vinyl vinyl
            printf '%s' "Vinyl"
        case (seq 100)CD CD CDA CDS CDM CDEP EP
            printf '%s' "CD"
        case CDR CDREP
            printf '%s' "CDr"
        case TAPE
            printf '%s' "Cassette"
		case WEB SINGLE-WEB EP-WEB
		    printf '%s' "File"
		case '*'
		    printf '%s' "*"
	end
end


while read -l -d (printf '\t') ORG A T C B F E Y
    sleep 1
    set API_CODE (curl -s -G "$DAPI" --user-agent "$UA" -w '%{http_code}' -o "$API_OUT" -H "Authorization: Discogs token=$TOKEN" \
        --data-urlencode "type=release" \
        --data-urlencode "artist=$A" \
        --data-urlencode "release_title=$T" \
        --data-urlencode "catno=$C" \
        --data-urlencode "barcode=$B" \
        --data-urlencode "format=$(discord_format $F)" \
        --data-urlencode "year=$Y")

    if test $status -ne 0
        echo "curl API request failed" >&2
        rm "$API_OUT"
        continue
    end

    if test $API_CODE -ne 200
        begin
            echo "Discogs API status code $CODE"
            echo $ORG
        end >&2
        rm "$API_OUT"
        continue
    end

    set API_COUNT (jq -r .pagination.items "$API_OUT")
    if test $status -ne 0
        begin
            echo "Failed parsing API result"
            echo $ORG
        end >&2
        rm "$API_OUT"
        continue
    end

    if test $API_COUNT -eq 0
        echo '{}' | jq -SMc --arg rls "$ORG" --arg api_count "$API_COUNT" '
        {
            "_scene_release_name": $rls,
            "_query": "API",
            "_search_result_count": $api_count | tonumber,
        }'
        rm "$API_OUT"
        continue
    else if test $API_COUNT -ge 1
        jq -SMc --arg rls "$ORG" --arg api_count "$API_COUNT" '.results[0] |
        . + {
            "_scene_release_name": $rls,
            "_query": "API",
            "_search_result_count": $api_count | tonumber
        }' "$API_OUT"
    end
    rm "$API_OUT"
end