package com.gmail.nossr50.skills.herbalism;

import com.gmail.nossr50.config.AdvancedConfig;
import com.gmail.nossr50.mcMMO;
import com.gmail.nossr50.util.skills.SkillUtils;
import org.bukkit.Material;
import org.bukkit.block.Block;
import org.bukkit.block.BlockFace;
import org.bukkit.block.BlockState;

import java.util.HashSet;

public class Herbalism {

    public static int farmersDietRankLevel1 = AdvancedConfig.getInstance().getFarmerDietRankChange();
    public static int farmersDietRankLevel2 = farmersDietRankLevel1 * 2;
    public static int farmersDietMaxLevel   = farmersDietRankLevel1 * 5;

    public static int greenThumbStageChangeLevel = AdvancedConfig.getInstance().getGreenThumbStageChange();
    public static int greenThumbStageMaxLevel    = greenThumbStageChangeLevel * 4;

    /**
     * Convert blocks affected by the Green Thumb & Green Terra abilities.
     *
     * @param blockState
     *            The {@link BlockState} to check ability activation for
     * @return true if the ability was successful, false otherwise
     */
    protected static boolean convertGreenTerraBlocks(BlockState blockState) {
        switch (blockState.getType()) {
            case COBBLESTONE_WALL:
                blockState.setType(Material.MOSSY_COBBLESTONE_WALL);
                return true;

            case STONE_BRICKS:
                blockState.setType(Material.MOSSY_STONE_BRICKS);
                return true;

            case DIRT :
            case GRASS_PATH :
                blockState.setType(Material.GRASS_BLOCK);
                return true;

            case COBBLESTONE :
                blockState.setType(Material.MOSSY_COBBLESTONE);
                return true;

            default :
                return false;
        }
    }

    public static HashSet<Block> findChorusPlant(Block target) {
        return findChorusPlant(target, new HashSet<Block>());
    }

    private static HashSet<Block> findChorusPlant(Block target, HashSet<Block> traversed) {
        if (target.getType() != Material.CHORUS_PLANT) {
            return traversed;
        }
        // Prevent any infinite loops, who needs more than 64 chorus anyways
        if (traversed.size() > 64)
        {
            return traversed;
        }

        traversed.add(target);

        Block relative = target.getRelative(BlockFace.UP, 1);
        if (!traversed.contains(relative)) {
            if (relative.getType() == Material.CHORUS_PLANT) {
                traversed.addAll(findChorusPlant(relative, traversed));
            }
        }

        relative = target.getRelative(BlockFace.NORTH, 1);
        if (!traversed.contains(relative)) {
            if (relative.getType() == Material.CHORUS_PLANT) {
                traversed.addAll(findChorusPlant(relative, traversed));
            }
        }

        relative = target.getRelative(BlockFace.SOUTH, 1);
        if (!traversed.contains(relative)) {
            if (relative.getType() == Material.CHORUS_PLANT) {
                traversed.addAll(findChorusPlant(relative, traversed));
            }
        }

        relative = target.getRelative(BlockFace.EAST, 1);
        if (!traversed.contains(relative)) {
            if (relative.getType() == Material.CHORUS_PLANT) {
                traversed.addAll(findChorusPlant(relative, traversed));
            }
        }

        relative = target.getRelative(BlockFace.WEST, 1);
        if (!traversed.contains(relative)) {
            if (relative.getType() == Material.CHORUS_PLANT) {
                traversed.addAll(findChorusPlant(relative, traversed));
            }
        }

        return traversed;
    }

    /**
     * Calculate the drop amounts for multi block plants based on the blocks
     * relative to them.
     *
     * @param blockState
     *            The {@link BlockState} of the bottom block of the plant
     * @return the number of bonus drops to award from the blocks in this plant
     */
    protected static int calculateMultiBlockPlantDrops(BlockState blockState) {
        Block block = blockState.getBlock();
        Material blockType = blockState.getType();
        int dropAmount = mcMMO.getPlaceStore().isTrue(block) ? 0 : 1;

        if (blockType == Material.CHORUS_PLANT) {
            dropAmount = 1;

            if (block.getRelative(BlockFace.DOWN, 1).getType() == Material.END_STONE) {
                HashSet<Block> blocks = findChorusPlant(block);

                dropAmount = blocks.size();

                /*
                 * for(Block b : blocks) {
                 * b.breakNaturally();
                 * }
                 */
            }
        } else {
            // Handle the two blocks above it - cacti & sugar cane can only grow 3 high naturally
            for (int y = 1; y < 3; y++) {
                Block relativeBlock = block.getRelative(BlockFace.UP, y);

                if (relativeBlock.getType() != blockType) {
                    break;
                }

                if (mcMMO.getPlaceStore().isTrue(relativeBlock)) {
                    mcMMO.getPlaceStore().setFalse(relativeBlock);
                } else {
                    dropAmount++;
                }
            }
        }

        return dropAmount;
    }

    /**
     * Convert blocks affected by the Green Thumb & Green Terra abilities.
     *
     * @param blockState
     *            The {@link BlockState} to check ability activation for
     * @return true if the ability was successful, false otherwise
     */
    protected static boolean convertShroomThumb(BlockState blockState) {
        switch (blockState.getType()) {
            case DIRT :
            case GRASS_BLOCK:
            case GRASS_PATH :
                blockState.setType(Material.MYCELIUM);
                return true;

            default :
                return false;
        }
    }

    /**
     * Check if the block has a recently grown crop from Green Thumb
     *
     * @param blockState
     *            The {@link BlockState} to check green thumb regrown for
     * @return true if the block is recently regrown, false otherwise
     */
    public static boolean isRecentlyRegrown(BlockState blockState) {
        return blockState.hasMetadata(mcMMO.greenThumbDataKey) && !SkillUtils.cooldownExpired(blockState.getMetadata(mcMMO.greenThumbDataKey).get(0).asInt(), 1);
    }
}