manage

local utils = require("utils")

return function(basalt, parentFrame, cookbook, toRecipe)
    local frame = parentFrame:addFrame()

    local cookbookLabel = label(frame, "Saved recipes", 3, 2)

    local cookbookList = frame
        :addList()
        :setPosition(3, 3)
        :setSize(30, 15)
        :setBackground(colors.black)
        :setForeground(colors.white)
        :setSelectionColor(colors.white, colors.black)

    local detailLabel = label(frame, "Details", 35, 2)

    local detailDisplay = frame
        :addLabel()
        :setText("")
        :setPosition(35, 3)
        :setSize(15, 11)
        :setBackground(colors.black)
        :setForeground(colors.white)

    local confirmDelete = false
    function deleteRecipe()
        if confirmDelete then
            confirmDelete = false
            local removeIndex = cookbookList:getItemIndex()
            if (removeIndex == nil) then return end

            local removeItem = cookbookList:getItem(removeIndex)
            cookbook[removeItem.text] = nil
            saveCookbook(cookbook)

            cookbookList:removeItem(removeIndex)
            if (removeIndex - 1 == cookbookList:getItemCount()) then removeIndex = removeIndex - 1 end
            cookbookList:selectItem(removeIndex)
            removeToast()

            detailDisplay:setText(recipeTexts[cookbookList:getItem(removeIndex).text])
        else
            confirmDelete = true
            toast(frame, "Double click to confirm deletion.", colors.black)
        end
    end

    function editRecipe()
        local editIndex = cookbookList:getItemIndex()
        if (editIndex == nil) then return end
        local editItem = cookbookList:getItem(editIndex).text
        toRecipe(editItem, cookbook[editItem])
    end


    local editButton = label(frame, "  Edit recipe  ", 3, 17)
        :setPosition(35, 15)
        :setBackground(colors.gray)
        :setForeground(colors.blue)
        :onClick(editRecipe)

    local deleteButton = label(frame, " Delete recipe ", 3, 17)
        :setPosition(35, 17)
        :setBackground(colors.gray)
        :setForeground(colors.red)
        :onClick(deleteRecipe)

    function summarizeRecipe(recipe)
        local result = ""

        local ingredients = tally(recipe.pattern)

        for _, pair in ipairs(ingredients) do
            item, count = table.unpack(pair)
            local delim = item:find(":")
            if delim ~= nil then
                item = item:sub(delim+1, #item)
            end
            result = result..string.format("%d %s, ", count, item)
        end
        result = result:sub(1, #result-2):gsub("_", " ")

        result = result..string.format("; yields %d", recipe.count)
        return result
    end

    local recipeTexts = nil

    function reload()
        if cookbook == nil then return end

        cookbookList:clear()
        recipeTexts = {}

        for item, recipe in pairs(cookbook) do
            recipeTexts[item] = summarizeRecipe(recipe)
            cookbookList:addItem(item)
        end

        cookbookList:onSelect(function(self, event, item)
            confirmDelete = false
            removeToast()
            detailDisplay:setText(recipeTexts[item.text])
        end)

        local firstIndex = cookbookList:getItemIndex()
        if (firstIndex ~= nil) then
            detailDisplay:setText(recipeTexts[cookbookList:getItem(firstIndex).text])
        end
    end

    reload()

    return frame, reload
end