getprop("ro.product.device") == "dandelion" || abort("E3004: This package is for \"dandelion\" devices; this is a \"" + getprop("ro.product.device") + "\".");
ui_print("Source: Redmi/dandelion_in/dandelion:10/QP1A.190711.020/V12.0.19.0.QCDINXM:user/release-keys");
ui_print("Target: Redmi/dandelion_in/dandelion:10/QP1A.190711.020/V12.0.21.0.QCDINXM:user/release-keys");
ui_print("Verifying current system...");
getprop("ro.build.fingerprint") == "Redmi/dandelion_in/dandelion:10/QP1A.190711.020/V12.0.19.0.QCDINXM:user/release-keys" ||
    getprop("ro.build.fingerprint") == "Redmi/dandelion_in/dandelion:10/QP1A.190711.020/V12.0.21.0.QCDINXM:user/release-keys" ||
    abort("E3001: Package expects build fingerprint of Redmi/dandelion_in/dandelion:10/QP1A.190711.020/V12.0.19.0.QCDINXM:user/release-keys or Redmi/dandelion_in/dandelion:10/QP1A.190711.020/V12.0.21.0.QCDINXM:user/release-keys; this device has " + getprop("ro.build.fingerprint") + ".");
show_progress(0.100000, 10);
patch_partition_check("EMMC:/dev/block/platform/bootdevice/by-name/boot:67108864:c9ff01de3b5c52a48b88de60c71020236554f1b5",
                      "EMMC:/dev/block/platform/bootdevice/by-name/boot:67108864:87796b642a6c84a8e81a7ea592d7b918cc94a388") ||
    abort("E3005: \"EMMC:/dev/block/platform/bootdevice/by-name/boot:67108864:c9ff01de3b5c52a48b88de60c71020236554f1b5\" or \"EMMC:/dev/block/platform/bootdevice/by-name/boot:67108864:87796b642a6c84a8e81a7ea592d7b918cc94a388\" has unexpected contents.");
apply_patch_space(68825088) || abort("E3006: Not enough free space on /cache to apply patches.");
show_progress(0.100000, 70);
if (range_sha1(map_partition("system"), "76,1,168,195,202,387,391,407,408,22578,22580,22595,22599,22603,22604,22742,22746,22754,22755,22766,22770,22774,22775,23266,23270,23286,23287,23299,23303,23307,23308,24441,24447,24475,24476,24482,24486,24490,24491,24608,24614,24619,24620,26791,26795,26824,26825,26859,26861,28493,28497,28502,28503,28534,28538,28542,28543,28642,28646,28650,32770,32903,98306,98439,163842,163975,229378,229511,294914,295047,524305,524307,546959,548624,557319,557441,557442") == "6f3c24c5a5dcf01a811222e99038c1c22b55b29f" || block_image_verify(map_partition("system"), package_extract_file("system.transfer.list"), "system.new.dat", "system.patch.dat")) then
ui_print("Verified system image...");
else
check_first_block(map_partition("system"));
ifelse (block_image_recover(map_partition("system"), "76,1,168,195,202,387,391,407,408,22578,22580,22595,22599,22603,22604,22742,22746,22754,22755,22766,22770,22774,22775,23266,23270,23286,23287,23299,23303,23307,23308,24441,24447,24475,24476,24482,24486,24490,24491,24608,24614,24619,24620,26791,26795,26824,26825,26859,26861,28493,28497,28502,28503,28534,28538,28542,28543,28642,28646,28650,32770,32903,98306,98439,163842,163975,229378,229511,294914,295047,524305,524307,546959,548624,557319,557441,557442") && block_image_verify(map_partition("system"), package_extract_file("system.transfer.list"), "system.new.dat", "system.patch.dat"), ui_print("system recovered successfully."), abort("E1004: system partition fails to recover"));
endif;
if (range_sha1(map_partition("vendor"), "22,1,65,800,806,824,825,827,828,830,831,1122,1128,1274,32770,32795,98306,98331,103914,104239,105895,105930,105931") == "8a98d657cd4cd261184cd781c78d22d87c70c05e" || block_image_verify(map_partition("vendor"), package_extract_file("vendor.transfer.list"), "vendor.new.dat", "vendor.patch.dat")) then
ui_print("Verified vendor image...");
else
check_first_block(map_partition("vendor"));
ifelse (block_image_recover(map_partition("vendor"), "22,1,65,800,806,824,825,827,828,830,831,1122,1128,1274,32770,32795,98306,98331,103914,104239,105895,105930,105931") && block_image_verify(map_partition("vendor"), package_extract_file("vendor.transfer.list"), "vendor.new.dat", "vendor.patch.dat"), ui_print("vendor recovered successfully."), abort("E2004: vendor partition fails to recover"));
endif;
if (range_sha1(map_partition("product"), "16,1,32770,32829,98306,98365,163842,163901,229378,229437,229441,229444,244955,245695,249590,249654,249655") == "e49aa4ed3e1f143720bb8dcc4067b63011baafb0" || block_image_verify(map_partition("product"), package_extract_file("product.transfer.list"), "product.new.dat", "product.patch.dat")) then
ui_print("Verified product image...");
else
ifelse (block_image_recover(map_partition("product"), "16,1,32770,32829,98306,98365,163842,163901,229378,229437,229441,229444,244955,245695,249590,249654,249655") && block_image_verify(map_partition("product"), package_extract_file("product.transfer.list"), "product.new.dat", "product.patch.dat"), ui_print("product recovered successfully."), abort("E2004: product partition fails to recover"));
endif;

# ---- start making changes here ----

ui_print("Patching boot image...");
show_progress(0.100000, 10);
patch_partition("EMMC:/dev/block/platform/bootdevice/by-name/boot:67108864:c9ff01de3b5c52a48b88de60c71020236554f1b5",
                "EMMC:/dev/block/platform/bootdevice/by-name/boot:67108864:87796b642a6c84a8e81a7ea592d7b918cc94a388",
                package_extract_file("boot.img.p")) ||
    abort("E3008: Failed to apply patch to EMMC:/dev/block/platform/bootdevice/by-name/boot:67108864:87796b642a6c84a8e81a7ea592d7b918cc94a388");
show_progress(0.600000, 600);

# --- Start patching dynamic partitions ---


# Patch partition system

ui_print("Patching system image after verification.");
block_image_update(map_partition("system"), package_extract_file("system.transfer.list"), "system.new.dat", "system.patch.dat") ||
  abort("E1001: Failed to update system image.");

# Update dynamic partition metadata

assert(update_dynamic_partitions(package_extract_file("dynamic_partitions_op_list")));

# Patch partition product

ui_print("Patching product image after verification.");
block_image_update(map_partition("product"), package_extract_file("product.transfer.list"), "product.new.dat", "product.patch.dat") ||
  abort("E2001: Failed to update product image.");

# Patch partition vendor

ui_print("Patching vendor image after verification.");
block_image_update(map_partition("vendor"), package_extract_file("vendor.transfer.list"), "vendor.new.dat", "vendor.patch.dat") ||
  abort("E2001: Failed to update vendor image.");

# --- End patching dynamic partitions ---

show_progress(0.100000, 2);
show_mtupdate_stage("/cache/recovery/last_mtupdate_stage");
ifelse (
less_than_int(get_mtupdate_stage("/cache/recovery/last_mtupdate_stage"), "1") ,
(
ui_print("start to update general image");
package_extract_file("dtbo.img", "/dev/block/platform/bootdevice/by-name/dtbo");
package_extract_file("md1img.img", "/dev/block/platform/bootdevice/by-name/md1img");
package_extract_file("spmfw.img", "/dev/block/platform/bootdevice/by-name/spmfw");
set_mtupdate_stage("/cache/recovery/last_mtupdate_stage", "1");
),
ui_print("general images are already updated");
);
ifelse (
less_than_int(get_mtupdate_stage("/cache/recovery/last_mtupdate_stage"), "3") ,
(
if less_than_int(get_mtupdate_stage("/cache/recovery/last_mtupdate_stage"), "2") then

ui_print("start to update alt loader image");
package_extract_file("sspm.img", "/dev/block/platform/bootdevice/by-name/sspm_2");
package_extract_file("tee.img", "/dev/block/platform/bootdevice/by-name/tee2");
package_extract_file("lk.img", "/dev/block/platform/bootdevice/by-name/lk2");
package_extract_file("scp.img", "/dev/block/platform/bootdevice/by-name/scp2");
if get_storage_type() then 
 assert(package_extract_file("preloader_ufs.img", "/dev/block/mmcblk0boot1"));
else 
 assert(set_emmc_writable("/sys/block/mmcblk0boot1/force_ro"),
        package_extract_file("preloader_emmc.img", "/dev/block/mmcblk0boot1"));
endif;
set_mtupdate_stage("/cache/recovery/last_mtupdate_stage", "2");
endif;

switch_active("sspm_1", "sspm_2");
switch_active("tee1", "tee2");
switch_active("lk", "lk2");
switch_active("scp1", "scp2");
switch_active("preloader", "preloader2");
set_mtupdate_stage("/cache/recovery/last_mtupdate_stage", "3");
),
ui_print("alt loder images are already updated");
);
ifelse (
less_than_int(get_mtupdate_stage("/cache/recovery/last_mtupdate_stage"), "5") ,
(
if less_than_int(get_mtupdate_stage("/cache/recovery/last_mtupdate_stage"), "4") then

ui_print("start to update main loader image");
package_extract_file("sspm.img", "/dev/block/platform/bootdevice/by-name/sspm_1");
package_extract_file("tee.img", "/dev/block/platform/bootdevice/by-name/tee1");
package_extract_file("lk.img", "/dev/block/platform/bootdevice/by-name/lk");
package_extract_file("scp.img", "/dev/block/platform/bootdevice/by-name/scp1");
if get_storage_type() then 
 assert(package_extract_file("preloader_ufs.img", "/dev/block/mmcblk0boot0"));
else 
 assert(set_emmc_writable("/sys/block/mmcblk0boot0/force_ro"),
        package_extract_file("preloader_emmc.img", "/dev/block/mmcblk0boot0"));
endif;
set_mtupdate_stage("/cache/recovery/last_mtupdate_stage", "4");
endif;

switch_active("sspm_2", "sspm_1");
switch_active("tee2", "tee1");
switch_active("lk2", "lk");
switch_active("scp2", "scp1");
switch_active("preloader2", "preloader");
),
ui_print("main loader images are already updated");
);
delete("/cache/recovery/last_mtupdate_stage");
package_extract_file("vbmeta_vendor.img", "/dev/block/platform/bootdevice/by-name/vbmeta_vendor");
package_extract_file("vbmeta_system.img", "/dev/block/platform/bootdevice/by-name/vbmeta_system");
package_extract_file("vbmeta.img", "/dev/block/platform/bootdevice/by-name/vbmeta");
post_ota_action();
