#!/bin/bash

export PLATFORMIO_ESP32_PATH="$HOME/.platformio/packages/framework-arduinoespressif32"
PLATFORMIO_ESP32_URL="https://github.com/platformio/platform-espressif32.git"

TOOLCHAIN_VERSION="12.2.0+20230208"
ESPTOOLPY_VERSION="~1.40501.0"
ESPRESSIF_ORGANIZATION_NAME="espressif"
SDKCONFIG_DIR="$PLATFORMIO_ESP32_PATH/tools/esp32-arduino-libs"
SCRIPTS_DIR="./.github/scripts"
COUNT_SKETCHES="${SCRIPTS_DIR}/sketch_utils.sh count"
CHECK_REQUIREMENTS="${SCRIPTS_DIR}/sketch_utils.sh check_requirements"

echo "Installing Python Wheel ..."
pip install wheel > /dev/null 2>&1

echo "Installing PlatformIO ..."
pip install -U https://github.com/platformio/platformio/archive/master.zip > /dev/null 2>&1

echo "Installing Platform ESP32 ..."
python -m platformio platform install $PLATFORMIO_ESP32_URL  > /dev/null 2>&1

echo "Replacing the package versions ..."
replace_script="import json; import os;"
replace_script+="fp=open(os.path.expanduser('~/.platformio/platforms/espressif32/platform.json'), 'r+');"
replace_script+="data=json.load(fp);"
# Use framework sources from the repository
replace_script+="data['packages']['framework-arduinoespressif32']['version'] = '*';"
replace_script+="del data['packages']['framework-arduinoespressif32']['owner'];"
# Use toolchain packages from the "espressif" organization
replace_script+="data['packages']['toolchain-xtensa-esp32']['owner']='$ESPRESSIF_ORGANIZATION_NAME';"
replace_script+="data['packages']['toolchain-xtensa-esp32s2']['owner']='$ESPRESSIF_ORGANIZATION_NAME';"
replace_script+="data['packages']['toolchain-riscv32-esp']['owner']='$ESPRESSIF_ORGANIZATION_NAME';"
# Update versions to use the upstream
replace_script+="data['packages']['toolchain-xtensa-esp32']['version']='$TOOLCHAIN_VERSION';"
replace_script+="data['packages']['toolchain-xtensa-esp32s2']['version']='$TOOLCHAIN_VERSION';"
replace_script+="data['packages']['toolchain-xtensa-esp32s3']['version']='$TOOLCHAIN_VERSION';"
replace_script+="data['packages']['toolchain-riscv32-esp']['version']='$TOOLCHAIN_VERSION';"
# Add new "framework-arduinoespressif32-libs" package
# Read "package_esp32_index.template.json" to extract a url to a zip package for "esp32-arduino-libs"
replace_script+="fpackage=open(os.path.join('package', 'package_esp32_index.template.json'), 'r+');"
replace_script+="package_data=json.load(fpackage);"
replace_script+="fpackage.close();"
replace_script+="libs_package_archive_url=next(next(system['url'] for system in tool['systems'] if system['host'] == 'x86_64-pc-linux-gnu') for tool in package_data['packages'][0]['tools'] if tool['name'] == 'esp32-arduino-libs');"
replace_script+="data['packages'].update({'framework-arduinoespressif32-libs':{'type':'framework','optional':False,'version':libs_package_archive_url}});"
replace_script+="data['packages']['toolchain-xtensa-esp32'].update({'optional':False});"
# esptool.py may require an upstream version (for now platformio is the owner)
replace_script+="data['packages']['tool-esptoolpy']['version']='$ESPTOOLPY_VERSION';"
# Save results
replace_script+="fp.seek(0);fp.truncate();json.dump(data, fp, indent=2);fp.close()"
python -c "$replace_script"

if [ "$GITHUB_REPOSITORY" == "espressif/arduino-esp32" ];  then
    echo "Linking Core..."
    ln -s "$GITHUB_WORKSPACE" "$PLATFORMIO_ESP32_PATH"
else
    echo "Cloning Core Repository ..."
    git clone --recursive https://github.com/espressif/arduino-esp32.git "$PLATFORMIO_ESP32_PATH" > /dev/null 2>&1
fi

echo "PlatformIO for ESP32 has been installed"
echo ""

function build_pio_sketch { # build_pio_sketch <board> <options> <path-to-ino>
    if [ "$#" -lt 3 ]; then
        echo "ERROR: Illegal number of parameters"
        echo "USAGE: build_pio_sketch <board> <options> <path-to-ino>"
        return 1
    fi

    local board="$1"
    local options="$2"
    local sketch="$3"
    local sketch_dir

    sketch_dir=$(dirname "$sketch")
    echo ""
    echo "Compiling '$(basename "$sketch")' ..."
    python -m platformio ci --board "$board" "$sketch_dir" --project-option="$options"
}

function build_pio_sketches { # build_pio_sketches <board> <options> <examples-path> <chunk> <total-chunks>
    if [ "$#" -lt 3 ]; then
        echo "ERROR: Illegal number of parameters"
        echo "USAGE: build_pio_sketches <board> <options> <examples-path> [<chunk> <total-chunks>]"
        return 1
    fi

    local board=$1
    local options="$2"
    local examples=$3
    local chunk_idex=$4
    local chunks_num=$5

    if [ "$#" -lt 5 ]; then
        chunk_idex="0"
        chunks_num="1"
    fi

    if [ "$chunks_num" -le 0 ]; then
        echo "ERROR: Chunks count must be positive number"
        return 1
    fi
    if [ "$chunk_idex" -ge "$chunks_num" ]; then
        echo "ERROR: Chunk index must be less than chunks count"
        return 1
    fi

    set +e
    ${COUNT_SKETCHES} "$examples" "esp32"
    local sketchcount=$?
    set -e
    local sketches
    sketches=$(cat sketches.txt)
    rm -rf sketches.txt

    local chunk_size
    local all_chunks
    local start_index
    local end_index
    local start_num

    chunk_size=$(( sketchcount / chunks_num ))
    all_chunks=$(( chunks_num * chunk_size ))
    if [ "$all_chunks" -lt "$sketchcount" ]; then
        chunk_size=$(( chunk_size + 1 ))
    fi

    start_index=$(( chunk_idex * chunk_size ))
    if [ "$sketchcount" -le "$start_index" ]; then
        echo "Skipping job"
        return 0
    fi

    end_index=$(( $(( chunk_idex + 1 )) * chunk_size ))
    if [ "$end_index" -gt "$sketchcount" ]; then
        end_index=$sketchcount
    fi

    start_num=$(( start_index + 1 ))
    echo "Found $sketchcount Sketches";
    echo "Chunk Count : $chunks_num"
    echo "Chunk Size  : $chunk_size"
    echo "Start Sketch: $start_num"
    echo "End Sketch  : $end_index"

    local sketchnum=0
    for sketch in $sketches; do
        local sketchdir
        local sketchdirname
        local sketchname
        local is_target
        local has_requirements

        sketchdir=$(dirname "$sketch")
        sketchdirname=$(basename "$sketchdir")
        sketchname=$(basename "$sketch")

        if [[ "$sketchdirname.ino" != "$sketchname" ]]; then
            continue
        elif [ -f "$sketchdir"/ci.json ]; then
            # If the target is listed as false, skip the sketch. Otherwise, include it.
            is_target=$(jq -r '.targets[esp32]' "$sketchdir"/ci.json)
            if [[ "$is_target" == "false" ]]; then
                continue
            fi

            has_requirements=$(${CHECK_REQUIREMENTS} "$sketchdir" "$SDKCONFIG_DIR/esp32/sdkconfig")
            if [ "$has_requirements" == "0" ]; then
                continue
            fi
        fi

        sketchnum=$((sketchnum + 1))
        if [ "$sketchnum" -le "$start_index" ] \
        || [ "$sketchnum" -gt "$end_index" ]; then
            continue
        fi
        build_pio_sketch "$board" "$options" "$sketch"
        local result=$?
        if [ $result -ne 0 ]; then
            return $result
        fi
    done
    return 0
}